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56
Highlights
40
Differences
9
Reactions
0
Likes
EcoFlow RIVER 2 Max
vs
Anker PowerHouse 521 :
56 Highlights & 40 Differences —
So, Which Portable Power Station Actually Works Better
Two reliable options with different features make this a tough choice. Discover which device offers what you really want.
From battery capacity, ac charging input wattage, carry handle & fire-resistant housing to real user feedback, we broke down the differences between EcoFlow RIVER 2 Max and Anker PowerHouse 521 in this clear, side-by-side portable power stations comparison.
EcoFlow RIVER 2 Max vs Anker PowerHouse 521: A Portable Power Station Face-Off
When it comes to portable power stations, both the EcoFlow RIVER 2 Max and the Anker PowerHouse 521 deliver solid general features like pure sine wave inverters and 50/60Hz frequency compatibility. Both are designed with safety in mind, including protections against temperature, short circuit, overcharge, and over-discharge. They share a boxy design with carry handles for portability, making them great options for off-grid cabins, CPAP users, and general outdoor activities. The fundamental differences revolve around power capacity, charging flexibility, and smart connectivity: EcoFlow provides faster charging options, broader device compatibility, and advanced app support, while Anker focuses on compactness, dual charging support, and affordability.
EcoFlow RIVER 2 Max: The Powerhouse for Serious Outdoors and Emergency Users
The standout feature of the EcoFlow RIVER 2 Max is definitely its robust charging inputs. With a remarkable 660W AC charging capacity and the ability to support two solar panels at 110W each, the RIVER 2 Max recharges much quicker than many competitors; including the Anker unit. It also supports generator compatibility, an advantage for users who want maximum charging versatility. This makes it ideal for powering a range of devices, including medical devices and power tools, which the Anker does not specifically guarantee. Furthermore, the EcoFlow's smart ecosystem enables full app control and Bluetooth integration, allowing users to monitor and update firmware remotely; a feature not available on the PowerHouse 521. Cold weather charging capability and a fire-resistant housing add to its ruggedness and reliability, perfect for outdoor and emergency scenarios.
Why Anker PowerHouse 521 Still Holds Its Ground
Despite its compact size, the Anker PowerHouse 521 excels in portability. Weighing just 9.57 lbs and measuring significantly smaller than the EcoFlow with dimensions of 8.5" width by 8.32" depth and 5.67" height, it's notably easier to carry and transport for lighter excursions or daily use. Its dual charging capability; which allows simultaneous solar and AC charging; is a flexibility advantage that the EcoFlow lacks. While its AC charging input tops out at a modest 65W and only supports one solar panel at 65W max, this configuration suits users with smaller energy requirements who appreciate the freedom to combine charging sources. The Anker maintains solid safety certifications with FCC certification and protective housings, making it a reliable choice. It covers essential needs well, including CPAP compatibility and off-grid cabin use, but without the bells and whistles of connectivity or expanded device support.
Quick Take
The EcoFlow RIVER 2 Max wins with its impressive fast AC charging, dual solar input, and advanced app control. Meanwhile, the Anker PowerHouse 521 offers excellent portability, budget pricing, and the convenience of dual charging ; all wrapped up in a compact form. Both stations deliver reliable power, but their strengths cater to quite different user needs.
Bottom Line: Which Portable Power Station Should You Pick?
If your priority is maximum power input, faster recharging times, and smart remote management for demanding scenarios, the EcoFlow RIVER 2 Max is the clear choice despite its larger size and heft. On the other hand, if you want a lighter, more budget-friendly device for casual outdoor adventures or basic emergency backup ; and value the ability to charge from both solar and AC at once ; the Anker PowerHouse 521 fits the bill perfectly.
Verdict
Winner: EcoFlow RIVER 2 Max - for its high wattage charging, gadget compatibility, and smart app features that meet the needs of serious power users
Runner-up: Anker PowerHouse 521 - for those needing a smaller, lighter, and more affordable power station with dual charging support for flexible solar plus AC input
Side by side. The numbers. The features. No drama.
We put EcoFlow RIVER 2 Max and Anker PowerHouse 521 to the test in this ultimate portable power stations comparison. Dive into detailed specs, shopper feedback, and real-world use cases to see which portable power station comes out ahead — and why it might matter to you.
Launched in late 2022 as part of EcoFlow’s second-generation RIVER lineup featuring ultra-fast recharging.
Indicates the year the product was released to market.
In the battle of Release Year,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
2 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Release Year on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
The Model Name differs with EcoFlow RIVER 2 Max named 'RIVER 2 Max' and Anker PowerHouse 521 as 'PowerHouse 521'. Both names clearly identify their brands, so this depends on your brand preference.
Identifies the commercial name used in marketing.
In the battle of Model Name,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
5 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Model Name on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Gender Suitability for both EcoFlow RIVER 2 Max and Anker PowerHouse 521 is Unisex, making them equally suitable for all users without gender restrictions.
Specifies if the product targets a gender.
In the battle of Gender Suitability,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Gender Suitability on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
53
EcoFlow RIVER 2 Max
0Votes
US, EU, Asia, Global
74
Anker PowerHouse 521
0Votes
US, EU, Asia, Global
vs
Launch Market Region
Launch Market Regions are identical: US, EU, Asia, and Global for both EcoFlow RIVER 2 Max and Anker PowerHouse 521, ensuring widespread availability.
First region where the product was introduced.
In the battle of Launch Market Region,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
lower
21 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Launch Market Region on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Country of Manufacture
Where was it manufactured?
44
EcoFlow RIVER 2 Max
0Votes
China
43
Anker PowerHouse 521
0Votes
China
EcoFlow RIVER 2 Max
Manufactured in EcoFlow’s Shenzhen facility, known for quality control and precision LiFePO₄ assembly.
Specifies where the product was manufactured.
In the battle of Country of Manufacture,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Country of Manufacture on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Warranty Period
What is the warranty period?
60
months
0Votes
60
months
0Votes
EcoFlow RIVER 2 Max
Backed by a 5-year warranty, offering one of the longest coverage periods in its category for peace of mind.
Duration of manufacturer warranty coverage.
In the battle of Warranty Period,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
, delivering
equal
60.00 months
measurement.
Don’t keep it to yourself — be the first to react and review the
Warranty Period on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Product Type
What is the product type?
54
EcoFlow RIVER 2 Max
0Votes
Portable Power Station
83
Anker PowerHouse 521
0Votes
Portable Power Station
vs
Product Type
Both EcoFlow RIVER 2 Max and Anker PowerHouse 521 are Portable Power Stations. This shared product type highlights their portability and suitability for mobile power needs.
Defines the category of the product.
In the battle of Product Type,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
lower
29 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Product Type on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Model Number
What is the model number?
63
EcoFlow RIVER 2 Max
0Votes
EFR610
68
Anker PowerHouse 521
0Votes
A1720
vs
Model Number
Model Number varies: EcoFlow RIVER 2 Max has EFR610, while Anker PowerHouse 521 uses A1720. This specification mainly helps with product identification rather than user experience.
Manufacturer’s unique identifier for the model.
In the battle of Model Number,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
lower
5 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Model Number on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Target Market
What is the target market?
64
EcoFlow RIVER 2 Max
0Votes
US, EU, Asia, Global
37
Anker PowerHouse 521
0Votes
US, EU, Asia, Global
Defines the geographic or demographic market.
In the battle of Target Market,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
27 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Target Market on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Age Group Suitability
What age group is it suitable for?
0
EcoFlow RIVER 2 Max
0Votes
Adults
13
Anker PowerHouse 521
0Votes
Adults
Indicates if the product has usage limitations by age.
In the battle of Age Group Suitability,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
lower
13 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Age Group Suitability on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Product Depth measures 10.2 inches for EcoFlow RIVER 2 Max versus 8.32 inches for Anker PowerHouse 521, making the Anker model smaller in depth and easier to carry.
The overall depth of the unit.
In the battle of Product Depth,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
higher
1.9 inch
measurement.
Don’t keep it to yourself — be the first to react and review the
Product Depth on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Product Height is 7.7 inches for EcoFlow RIVER 2 Max and 5.67 inches for Anker PowerHouse 521, making the Anker model shorter and more compact overall.
The overall height of the unit.
In the battle of Product Height,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
higher
2.0 inch
measurement.
Don’t keep it to yourself — be the first to react and review the
Product Height on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
EcoFlow RIVER 2 Max weighs 13.4 lbs compared to Anker PowerHouse 521's lighter 9.57 lbs. For users prioritizing lighter equipment, Anker is the preferable choice.
The weight of the device itself.
In the battle of Product Weight,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
higher
3.8 lbs
measurement.
Don’t keep it to yourself — be the first to react and review the
Product Weight on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
Clearance space for wheeled models, useful on rough terrain.
Don’t keep it to yourself — be the first to react and review the
Underbody Clearance on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Product Width
What is the product width?
10.6
inch
0Votes
8.5
inch
0Votes
vs
Product Width
Product Width of EcoFlow RIVER 2 Max is 10.6 inches, while Anker PowerHouse 521 is narrower at 8.5 inches. The Anker model is more compact in width, favoring portability.
The overall width of the unit.
In the battle of Product Width,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
higher
2.1 inch
measurement.
Don’t keep it to yourself — be the first to react and review the
Product Width on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Package Weight
What is the package weight?
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
9.65
lbs
0Votes
Anker PowerHouse 521
The weight of the package is roughly 4.38 kg, making it easy to handle for shipping.
The shipping weight including packaging.
Don’t keep it to yourself — be the first to react and review the
Package Weight on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Package Width
What is the package width?
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
Width of the shipping package.
Don’t keep it to yourself — be the first to react and review the
Package Width on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Package Depth
What is the package depth?
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
Depth of the shipping package.
Don’t keep it to yourself — be the first to react and review the
Package Depth on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Package Height
What is the package height?
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
Height of the shipping package.
Don’t keep it to yourself — be the first to react and review the
Package Height on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Handle Type
What type of handle does it have?
34
EcoFlow RIVER 2 Max
0Votes
Fixed
43
Anker PowerHouse 521
0Votes
Fixed
Describes the type of handle provided.
In the battle of Handle Type,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
lower
9 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Handle Type on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Telescopic Handle Height
What is the telescopic handle height?
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
Maximum height of an extended telescopic handle.
Don’t keep it to yourself — be the first to react and review the
Telescopic Handle Height on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Equivalent to 0.51 kWh, enough to run a 50W mini fridge for about 10 hours or charge a smartphone 40+ times.
Total energy storage capacity of the battery.
In the battle of Battery Capacity,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
256.0 Wh
measurement.
Don’t keep it to yourself — be the first to react and review the
Battery Capacity on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Both EcoFlow RIVER 2 Max and Anker PowerHouse 521 feature Pure Sine Wave Inverters, providing clean and stable power output ideal for sensitive electronics.
Indicates if the AC inverter provides pure sine wave output.
In the battle of Pure Sine Wave Inverter,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Pure Sine Wave Inverter on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
No support for 24V/48V Output is found in either EcoFlow RIVER 2 Max or Anker PowerHouse 521, limiting these to standard output voltages.
Indicates if the unit supports high-voltage DC outputs.
In the battle of 24V/48V Output Support,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
24V/48V Output Support on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Anderson Port Output Support is absent in EcoFlow RIVER 2 Max and Anker PowerHouse 521, so neither offers this connectivity option.
Shows if Anderson Powerpole outputs are provided.
In the battle of Anderson Port Output Support,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Anderson Port Output Support on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Car Socket Output
How many car sockets are available?
34
EcoFlow RIVER 2 Max
0Votes
1 Outlet
43
Anker PowerHouse 521
0Votes
1 Outlet
EcoFlow RIVER 2 Max
Delivers 12.6V / 10A (≈126W) DC output, compatible with car coolers, inflators, or dash cams; convenient for vehicle-based use.
Anker PowerHouse 521
The car socket supports a 120W output, ideal for powering car electronics or small devices.
Number of 12V car-style sockets.
In the battle of Car Socket Output,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
lower
9 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Car Socket Output on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Rated Power Output
What is the rated power output?
500
Watt
0Votes
200
Watt
0Votes
EcoFlow RIVER 2 Max
Provides continuous 500W AC output — sufficient for laptops, small appliances, and power tools under moderate load.
Continuous power output supported by the inverter.
In the battle of Rated Power Output,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
300.0 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Rated Power Output on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Surge Power Output
What is the surge power output?
1,000
Watt
0Votes
450
Watt
0Votes
EcoFlow RIVER 2 Max
Handles brief power spikes up to 1000W, helping to start devices like blenders or drills safely.
Maximum peak output for short bursts.
In the battle of Surge Power Output,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
550.0 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Surge Power Output on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
AC Output Ports
How many AC outlets are included?
64
EcoFlow RIVER 2 Max
0Votes
4 Outlets
43
Anker PowerHouse 521
0Votes
2 Outlets
EcoFlow RIVER 2 Max
Includes four standard AC 110V (US version) pure sine wave outlets let you connect multiple appliances simultaneously — great for laptops, lights, and small tools.
Number of AC outlets available.
In the battle of AC Output Ports,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
21 score
measurement.
Don’t keep it to yourself — be the first to react and review the
AC Output Ports on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
AC Output Wattage
What is the AC output wattage?
500
W
0Votes
200
W
0Votes
Anker PowerHouse 521
Provides a steady 200W output, ideal for powering small appliances like a fan or laptop.
The amount of power the unit can provide to AC devices.
In the battle of AC Output Wattage,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
300.0 W
measurement.
Don’t keep it to yourself — be the first to react and review the
AC Output Wattage on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
USB-A Ports
How many USB-A ports are available?
54
EcoFlow RIVER 2 Max
0Votes
3 Ports
33
Anker PowerHouse 521
0Votes
2 Ports
EcoFlow RIVER 2 Max
Each port provides up to 12W, suitable for smartphones, Bluetooth speakers, or cameras; multiple can be used simultaneously without overload.
Number of USB-A output ports.
In the battle of USB-A Ports,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
21 score
measurement.
Don’t keep it to yourself — be the first to react and review the
USB-A Ports on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
USB-C Ports
How many USB-C ports are available?
27
EcoFlow RIVER 2 Max
0Votes
1 Port
23
Anker PowerHouse 521
0Votes
1 Port
EcoFlow RIVER 2 Max
A 100W USB-C PD output — powerful enough to charge a MacBook Pro or gaming laptop directly without a separate adapter.
Number of USB-C output ports.
In the battle of USB-C Ports,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
4 score
measurement.
Don’t keep it to yourself — be the first to react and review the
USB-C Ports on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
USB-C Power Delivery Wattage
What is the USB-C PD wattage?
100
Watt
0Votes
60
Watt
0Votes
Anker PowerHouse 521
The USB-C port supports fast charging up to 60W, perfect for charging laptops and tablets quickly.
Maximum Power Delivery (PD) rating for USB-C ports.
In the battle of USB-C Power Delivery Wattage,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
40.0 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
USB-C Power Delivery Wattage on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Car Socket Wattage
What is the car socket wattage?
126
Watt
0Votes
120
Watt
0Votes
EcoFlow RIVER 2 Max
Runs on 12.6V / 10A car output, convenient for in-vehicle charging during road trips.
Wattage supported by car socket outputs.
In the battle of Car Socket Wattage,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
6.0 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Car Socket Wattage on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
DC Barrel Jack
How many DC barrel output ports does it have?
4
EcoFlow RIVER 2 Max
0Votes
2 Pors
0
Anker PowerHouse 521
0Votes
Not Provided
EcoFlow RIVER 2 Max
Provides a maximum of 36W from two DC5521 (barrel) output ports, ideal for router backup, LED lighting, or surveillance systems.
The number of DC barrel-style output ports available for powering compatible devices.
In the battle of DC Barrel Jack,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
4 score
measurement.
Don’t keep it to yourself — be the first to react and review the
DC Barrel Jack on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
DC Output Ports
How many DC output ports are there?
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
Number of DC output ports available.
Don’t keep it to yourself — be the first to react and review the
DC Output Ports on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Wireless Charging Pad
Does it have a wireless charging pad?
No
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
Indicates if a wireless charging pad is included.
In the battle of Wireless Charging Pad,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Wireless Charging Pad on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Frequency
What is the output frequency?
94
EcoFlow RIVER 2 Max
0Votes
50/60Hz
93
Anker PowerHouse 521
0Votes
50/60Hz
vs
Frequency
Frequency support for both EcoFlow RIVER 2 Max and Anker PowerHouse 521 is 50/60Hz, ensuring compatibility with various devices worldwide.
AC output frequency (usually 50Hz or 60Hz).
In the battle of Frequency,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Frequency on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
RV/TT-30 Outlet Support
Does it have a TT-30 outlet?
No
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
vs
RV/TT-30 Outlet Support
Neither EcoFlow RIVER 2 Max nor Anker PowerHouse 521 supports RV/TT-30 outlets. For those needing this outlet type, neither is suitable.
Indicates if there’s a TT-30 outlet for RVs.
In the battle of RV/TT-30 Outlet Support,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
RV/TT-30 Outlet Support on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
UPS Switching Time
What is the UPS switching time?
30
ms
0Votes
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
Time taken for the UPS system to switch from grid power to battery power.
Don’t keep it to yourself — be the first to react and review the
UPS Switching Time on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
DC Output Ports (Others)
How many other DC output ports are available?
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
The number of other DC output ports (such as aviation, Anderson, or special-purpose ports)
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DC Output Ports (Others) on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
AC Charging Input Wattage is significantly higher on EcoFlow RIVER 2 Max at 660W compared to Anker PowerHouse 521's 65W, resulting in much faster AC charging for EcoFlow.
Maximum AC input wattage supported for charging.
In the battle of AC Charging Input Wattage,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
595.0 Watt
measurement.
Based on community votes for AC Charging Input Wattage,
EcoFlow RIVER 2 Max ◉ earned
2 votes,
more than
Anker PowerHouse 521 ◉,
which got 1 votes.
EcoFlow RIVER 2 Max supports up to 2 x 110W solar panels, while Anker PowerHouse 521 supports only 1 x 65W panel. EcoFlow offers greater solar charging capacity for extended off-grid use.
Maximum number of solar panels that can be connected simultaneously.
In the battle of Max Solar Panel Count Supported,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
lower
9 score
measurement.
Based on community votes for Max Solar Panel Count Supported,
EcoFlow RIVER 2 Max ◉ earned
1 votes,
less than
Anker PowerHouse 521 ◉,
which got 2 votes.
Similar to solar charging, it requires about 4.1 hours when using the car charger.
Average charging time using car input.
In the battle of Charging Time (Car),
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
higher
1.9 hours
measurement.
Don’t keep it to yourself — be the first to react and review the
Charging Time (Car) on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Both EcoFlow RIVER 2 Max and Anker PowerHouse 521 have built-in MPPT controllers, enhancing solar charging efficiency.
Shows if the unit includes a built-in MPPT for solar optimization.
In the battle of MPPT Controller Built-in,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
MPPT Controller Built-in on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Dual Charging Support is not available on EcoFlow RIVER 2 Max but is present on Anker PowerHouse 521, making Anker better for users needing simultaneous charging options.
Indicates if AC and solar can be used together for faster charging.
In the battle of Dual Charging Support,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Dual Charging Support on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Charging Time (AC)
How long to charge via AC?
60
minutes
0Votes
150
minutes
0Votes
EcoFlow RIVER 2 Max
Fully recharges in 1 hour, among the fastest in its class — ideal for last-minute prep before travel.
Anker PowerHouse 521
Using a 65W AC adapter and 60W USB-C port (dual Input), the charging approximately takes 2.5 hours to fully charge from 0%.
Average charging time using AC input.
In the battle of Charging Time (AC),
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
lower
90.0 minutes
measurement.
Don’t keep it to yourself — be the first to react and review the
Charging Time (AC) on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Charging Time (Solar)
How long to charge via solar?
3
hours
0Votes
4.1
hours
0Votes
EcoFlow RIVER 2 Max
Can fully charge in as little as 3–6 hours with an optimal sunlight and 220W solar input.
Anker PowerHouse 521
Takes roughly 4.1 hours to fully charge under optimal sunlight with a 65W solar panel.
Average charging time using solar input.
In the battle of Charging Time (Solar),
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
lower
1.1 hours
measurement.
Don’t keep it to yourself — be the first to react and review the
Charging Time (Solar) on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Solar Charging Input Wattage
What is the solar charging input wattage?
220
Watt
0Votes
65
Watt
0Votes
EcoFlow RIVER 2 Max
Equal to 0.22 kW; supports up to two 110W solar panels, enabling a full charge in roughly 3–4 hours under full sunlight.
Maximum supported solar input wattage.
In the battle of Solar Charging Input Wattage,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
155.0 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Solar Charging Input Wattage on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Max Input Power
What is the maximum input power?
660
Watt
0Votes
125
Watt
0Votes
Anker PowerHouse 521
Max input power of 125W ensures fast charging from AC, car, or solar sources.
Combined maximum input power across all methods.
In the battle of Max Input Power,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
535.0 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Max Input Power on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Pass-Through Charging
Does it support pass-through charging?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
EcoFlow RIVER 2 Max
Lets you charge the power station while it powers devices, ideal for continuous use setups like routers or medical devices.
Allows simultaneous charging and discharging.
In the battle of Pass-Through Charging,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Pass-Through Charging on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Car Charging Input Wattage
What is the car charging input wattage?
100
Watt
0Votes
65
Watt
0Votes
Maximum wattage accepted via car port.
In the battle of Car Charging Input Wattage,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
35.0 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Car Charging Input Wattage on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Input Voltage Range
What is the input voltage range?
75
EcoFlow RIVER 2 Max
0Votes
11-50V DC/100-120V AC
84
Anker PowerHouse 521
0Votes
11-28V DC/100-120V AC
Voltage range accepted by the charging system.
In the battle of Input Voltage Range,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
lower
9 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Input Voltage Range on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Charging Method
What charging methods are supported?
59
EcoFlow RIVER 2 Max
0Votes
AC, Solar, Car, USB-C
In the battle of Charging Method,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
10 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Charging Method on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Fast Charging Support
Does it support fast charging?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
Indicates if the unit supports fast charging.
In the battle of Fast Charging Support,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Fast Charging Support on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Expandable Battery Support
Can it support expandable batteries?
No
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
Indicates if extra battery packs can be connected.
In the battle of Expandable Battery Support,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Expandable Battery Support on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Overcharge Protection is ensured on EcoFlow RIVER 2 Max and Anker PowerHouse 521, maintaining battery longevity by preventing excessive charging.
Prevents damage from charging beyond safe voltage.
In the battle of Overcharge Protection,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Overcharge Protection on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Both EcoFlow RIVER 2 Max and Anker PowerHouse 521 include Over-discharge Protection, protecting batteries from damage due to deep discharge.
Protects the battery from being drained below safe levels.
In the battle of Over-discharge Protection,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Over-discharge Protection on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Overcurrent Protection is available on both EcoFlow RIVER 2 Max and Anker PowerHouse 521, preventing damage under excess current flow.
Prevents excessive current draw from damaging components.
In the battle of Overcurrent Protection,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Overcurrent Protection on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Temperature Protection is enabled on both EcoFlow RIVER 2 Max and Anker PowerHouse 521, safeguarding battery health in varying thermal conditions.
Monitors and protects the unit from unsafe temperatures.
In the battle of Temperature Protection,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Temperature Protection on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Cycle Life
What is the cycle life?
3,000
cycles
0Votes
3,000
cycles
0Votes
EcoFlow RIVER 2 Max
Has a cycle life of 3000+ cycles to 80%+ capacity, using its long-lasting LFP (LiFePO4) battery chemistry. This is equivalent to roughly 10 years of everyday use
Anker PowerHouse 521
LiFePO4 battery ensures a long lifespan with over 3000 charge cycles, providing over a decade of use.
Approximate number of full charge/discharge cycles before capacity drops to 80%.
In the battle of Cycle Life,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
, delivering
equal
3,000.00 cycles
measurement.
Don’t keep it to yourself — be the first to react and review the
Cycle Life on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Battery Type
What is the battery type?
34
EcoFlow RIVER 2 Max
0Votes
Lithium Iron Phosphate (LFP)
63
Anker PowerHouse 521
0Votes
Lithium Iron Phosphate (LFP)
EcoFlow RIVER 2 Max
LiFePO₄ chemistry known for long lifespan, superior thermal stability, and higher safety compared to traditional lithium-ion cells.
Defines the core type of battery used.
In the battle of Battery Type,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
lower
29 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Battery Type on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
UPS / EPS Function
Does it have UPS/EPS functionality?
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
EcoFlow RIVER 2 Max
Automatically switches to backup power within 30 milliseconds during an outage — fast enough to protect sensitive electronics.
Indicates support for uninterruptible or emergency power supply.
Don’t keep it to yourself — be the first to react and review the
UPS / EPS Function on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Short Circuit Protection
Does it have short circuit protection?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
vs
Short Circuit Protection
Short Circuit Protection is integrated into both EcoFlow RIVER 2 Max and Anker PowerHouse 521, enhancing user safety and device reliability.
Protects against short circuits in the system.
In the battle of Short Circuit Protection,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Short Circuit Protection on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Parallel Battery Connection Support
Does it support parallel battery connection?
No
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
Allows multiple batteries to be connected in parallel for extended capacity.
In the battle of Parallel Battery Connection Support,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Parallel Battery Connection Support on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Battery Chemistry
What is the battery chemistry?
34
EcoFlow RIVER 2 Max
0Votes
LiFePO4
33
Anker PowerHouse 521
0Votes
LiFePO4
Indicates the chemical composition of the battery cells.
In the battle of Battery Chemistry,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Battery Chemistry on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Battery Management System
Does it include a BMS?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
Indicates if a BMS is included for safety and efficiency.
In the battle of Battery Management System,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Battery Management System on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Replaceable Battery
Is the battery replaceable?
No
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
Indicates if the internal battery can be swapped or replaced.
In the battle of Replaceable Battery,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Replaceable Battery on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Firmware Upgradable
Is the firmware upgradable?
Yes
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
Allows performance or safety updates via firmware.
In the battle of Firmware Upgradable,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Firmware Upgradable on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Both EcoFlow RIVER 2 Max and Anker PowerHouse 521 have Carry Handles, facilitating handheld portability.
Indicates if a fixed carry handle is included.
In the battle of Carry Handle,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Carry Handle on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Neither EcoFlow RIVER 2 Max nor Anker PowerHouse 521 offers a Telescopic Handle, which may affect ease of transport for some users.
Indicates if a telescopic handle is provided for rolling.
In the battle of Telescopic Handle,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Telescopic Handle on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
No Detachable Module Design is present in either EcoFlow RIVER 2 Max or Anker PowerHouse 521, meaning their batteries and components are non-modular.
Indicates if modules can be detached (e.g., battery packs).
In the battle of Detachable Module Design,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Detachable Module Design on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Integrated Cable Storage is not featured on either EcoFlow RIVER 2 Max or Anker PowerHouse 521, so cable management must be external.
Shows if the unit provides built-in storage for cables.
In the battle of Integrated Cable Storage,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Integrated Cable Storage on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Display Type
What type of display is included?
34
EcoFlow RIVER 2 Max
0Votes
LCD
33
Anker PowerHouse 521
0Votes
LCD
EcoFlow RIVER 2 Max
The clear LCD shows input/output power, battery percentage, estimated time to full charge or depletion, and warning alerts — easy to read even in daylight.
Anker PowerHouse 521
Features an easy-to-read LCD display to show power input/output and battery status.
Type of display included.
In the battle of Display Type,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Display Type on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Material
What material is used?
34
EcoFlow RIVER 2 Max
0Votes
Plastic
43
Anker PowerHouse 521
0Votes
Plastic
EcoFlow RIVER 2 Max
Uses high-strength flame-retardant ABS plastic — lightweight yet durable for outdoor or travel use.
Anker PowerHouse 521
Made of durable plastic, making it lightweight while maintaining robustness.
Main material used in construction.
In the battle of Material,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
lower
9 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Material on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Color Options
What color options are available?
52
EcoFlow RIVER 2 Max
0Votes
Dark Grey
53
Anker PowerHouse 521
0Votes
Black
Anker PowerHouse 521
The power station comes in sleek black, blending well with most environments.
Available exterior color options.
In the battle of Color Options,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
lower
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Color Options on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Finish Options
What finish options are available?
74
EcoFlow RIVER 2 Max
0Votes
Matte
23
Anker PowerHouse 521
0Votes
Matte
Anker PowerHouse 521
Available in both matte and glossy finishes to suit your style preferences.
Types of finish available.
In the battle of Finish Options,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
51 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Finish Options on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Indicator Lights
Does it have indicator lights?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
Anker PowerHouse 521
The indicator lights help you easily monitor the power status and charging progress.
Indicates if the unit includes status indicator lights.
In the battle of Indicator Lights,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Indicator Lights on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Wheels
Does it have wheels?
No
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
Shows if the unit has integrated wheels for mobility.
In the battle of Wheels,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Wheels on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Stackable Design
Is the design stackable?
No
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
Indicates if the product can be stacked with other units.
In the battle of Stackable Design,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Stackable Design on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Form Factor
What is the form factor?
24
EcoFlow RIVER 2 Max
0Votes
Box
43
Anker PowerHouse 521
0Votes
Box
vs
Form Factor
The Form Factor for both EcoFlow RIVER 2 Max and Anker PowerHouse 521 is 'Box', suitable for stable placement and stacking.
The overall design style of the unit.
In the battle of Form Factor,
EcoFlow RIVER 2 Max ◉ is
worse than
Anker PowerHouse 521 ◉
, delivering
lower
19 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Form Factor on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Fire-Resistant Housing is present on both EcoFlow RIVER 2 Max and Anker PowerHouse 521, enhancing durability and user safety.
Indicates fire-resistant construction materials.
In the battle of Fire-Resistant Housing,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Fire-Resistant Housing on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Neither EcoFlow RIVER 2 Max nor Anker PowerHouse 521 offers Water Resistance, so caution is needed in wet environments.
Shows if the device resists water ingress.
In the battle of Water Resistance,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Water Resistance on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Smart Temperature Monitoring is available in both EcoFlow RIVER 2 Max and Anker PowerHouse 521, helping maintain safe operating temperatures.
Uses sensors to track and manage internal heat.
In the battle of Smart Temperature Monitoring,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Smart Temperature Monitoring on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Both EcoFlow RIVER 2 Max and Anker PowerHouse 521 do not require Grounding/Earthing, simplifying setup and usage.
Indicates if grounding is required for safe operation.
In the battle of Grounding / Earthing Requirement,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Grounding / Earthing Requirement on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
CE Certification
Is it CE certified?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
Anker PowerHouse 521
Certified under CE standards, ensuring it meets European health, safety, and environmental protection requirements.
Indicates CE compliance for EU markets.
In the battle of CE Certification,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
CE Certification on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
FCC Certification
Is it FCC certified?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
vs
FCC Certification
Both EcoFlow RIVER 2 Max and Anker PowerHouse 521 have FCC Certification, ensuring compliance with electromagnetic and safety standards.
Indicates FCC compliance for electronics.
In the battle of FCC Certification,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
FCC Certification on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
RoHS Compliance
Is it RoHS compliant?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
Anker PowerHouse 521
Meets RoHS standards, restricting the use of hazardous materials in the product.
Indicates restriction of hazardous substances compliance.
In the battle of RoHS Compliance,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
RoHS Compliance on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Overload Protection
Does it have overload protection?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
Anker PowerHouse 521
Safeguards the device from overload situations, ensuring safe operation.
Prevents damage from drawing too much power.
In the battle of Overload Protection,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Overload Protection on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Surge Protection
Does it have surge protection?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
Anker PowerHouse 521
Protects against voltage spikes, making sure sensitive electronics are shielded from damage.
Protects connected devices from power surges.
In the battle of Surge Protection,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Surge Protection on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
UL Certification
Is it UL certified?
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
Indicates UL safety certification.
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UL Certification on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
UN38.3 Certification
Is it UN38.3 certified?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
Certification for safe air transport of lithium batteries.
In the battle of UN38.3 Certification,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
UN38.3 Certification on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Cold Weather Charging Support exists for EcoFlow RIVER 2 Max but is not available on Anker PowerHouse 521, favoring EcoFlow for colder climates.
Allows charging at sub-freezing temperatures.
In the battle of Cold Weather Charging Support,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Cold Weather Charging Support on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
Maximum altitude for proper operation.
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Altitude Limit on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Indicates if the device can operate silently without fans.
In the battle of Fanless / Silent Mode,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Fanless / Silent Mode on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Operating Temperature Range (Charging)
What is the charging temperature range?
69
EcoFlow RIVER 2 Max
0Votes
32°F - 113°F
43
Anker PowerHouse 521
0Votes
32°F - 104°F
EcoFlow RIVER 2 Max
Equivalent to 0°C–45°C, suitable for most indoor and outdoor climates. Avoid charging below freezing to protect battery life.
Anker PowerHouse 521
Charging is safe between 0°C and 40°C, making it suitable for most environments.
The temperature range within which the unit can be charged safely.
In the battle of Operating Temperature Range (Charging),
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
lower
26 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Operating Temperature Range (Charging) on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Operating Temperature Range (Discharging)
What is the discharging temperature range?
64
EcoFlow RIVER 2 Max
0Votes
14°F - 113°F
53
Anker PowerHouse 521
0Votes
-4°F - 104°F
EcoFlow RIVER 2 Max
Converts to -10°C–45°C, meaning it works reliably even in cold outdoor environments.
Anker PowerHouse 521
Discharges safely from -20°C to 40°C, allowing use in various weather conditions.
The temperature range within which the unit can discharge safely.
In the battle of Operating Temperature Range (Discharging),
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
lower
11 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Operating Temperature Range (Discharging) on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Storage Temperature Range
What is the storage temperature range?
34
EcoFlow RIVER 2 Max
0Votes
14°F - 113°F
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
EcoFlow RIVER 2 Max
About -10°C–45°C; ideal for garages or RVs but avoid prolonged high heat for battery longevity.
Temperature range for safe storage.
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Storage Temperature Range on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Noise Level
What is the noise level?
62
dB
0Votes
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
EcoFlow RIVER 2 Max
Similar to normal conversation volume — noticeable but not disruptive, thanks to its active cooling fan.
Average noise output during operation.
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Noise Level on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Operating Humidity Range
What is the operating humidity range?
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
Acceptable humidity levels for operation.
Don’t keep it to yourself — be the first to react and review the
Operating Humidity Range on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Cooling System Type
What type of cooling system does it use?
94
EcoFlow RIVER 2 Max
0Votes
Fan
93
Anker PowerHouse 521
0Votes
Fan
Type of cooling system used.
In the battle of Cooling System Type,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Cooling System Type on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Dust Resistance
Is it dust resistant?
No
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
Indicates if the device resists dust ingress.
In the battle of Dust Resistance,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Dust Resistance on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Weather Resistance
Is it weather resistant?
No
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
vs
Weather Resistance
Weather Resistance is absent from both EcoFlow RIVER 2 Max and Anker PowerHouse 521, requiring protection in adverse weather.
Shows if the unit withstands exposure to weather.
In the battle of Weather Resistance,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Weather Resistance on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
In the battle of Usage History Tracking,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Usage History Tracking on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Firmware Upgrade via App is available on EcoFlow RIVER 2 Max but not on Anker PowerHouse 521, allowing easier software updates for EcoFlow.
Allows firmware updates through the companion app.
In the battle of Firmware Upgrade via App,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Firmware Upgrade via App on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Smart Home Panel/Integration is not supported on either EcoFlow RIVER 2 Max or Anker PowerHouse 521, indicating limited smart home connectivity.
Allows integration with home energy systems.
In the battle of Smart Home Panel / Integration,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Smart Home Panel / Integration on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
App Connectivity
Does it support app connectivity?
Yes
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
vs
App Connectivity
App Connectivity is supported by EcoFlow RIVER 2 Max but not by Anker PowerHouse 521, benefitting users who prefer remote monitoring via smartphone.
Indicates if the unit connects to a mobile app.
In the battle of App Connectivity,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
App Connectivity on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Wi-Fi
Does it support Wi-Fi?
Yes
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
EcoFlow RIVER 2 Max
Enables cloud connectivity through EcoFlow’s app for firmware updates and remote management.
Indicates Wi-Fi connectivity for monitoring and control.
In the battle of Wi-Fi,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Wi-Fi on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Smart Energy Management
Does it have smart energy management?
Yes
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
EcoFlow RIVER 2 Max
Automatically adjusts charging and discharging efficiency to extend battery life and reduce power waste.
Provides intelligent power usage optimization.
In the battle of Smart Energy Management,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Smart Energy Management on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Remote Monitoring
Does it support remote monitoring?
Yes
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
Allows remote tracking of status and performance.
In the battle of Remote Monitoring,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Remote Monitoring on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Remote Control
Does it support remote control?
Yes
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
Allows remote operation of functions via app.
In the battle of Remote Control,
EcoFlow RIVER 2 Max ◉ is
better than
Anker PowerHouse 521 ◉
, delivering
higher
40 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Remote Control on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Voice Assistant Compatibility
Is it voice assistant compatible?
No
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
Indicates if compatible with Alexa, Google, etc.
In the battle of Voice Assistant Compatibility,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Voice Assistant Compatibility on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Touch Screen
Does it have a touch screen?
No
0Votes
EcoFlow RIVER 2 Max
No
0Votes
Anker PowerHouse 521
vs
Touch Screen
Neither EcoFlow RIVER 2 Max nor Anker PowerHouse 521 features a Touch Screen, so device interaction relies on physical buttons or apps.
A touch screen provides easier user interface control.
In the battle of Touch Screen,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Touch Screen on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
CPAP Compatibility is confirmed for both EcoFlow RIVER 2 Max and Anker PowerHouse 521, making them suitable backup power sources for CPAP machines.
Indicates if specifically compatible with CPAP machines.
In the battle of CPAP Compatibility,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
CPAP Compatibility on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
vs
Medical Devices Support
Medical Devices Support is available on EcoFlow RIVER 2 Max but data is unavailable for Anker PowerHouse 521, suggesting safer medical device use with EcoFlow.
Indicates compatibility with critical medical devices.
Don’t keep it to yourself — be the first to react and review the
Medical Devices Support on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Who knows?
0Votes
EcoFlow RIVER 2 Max
(Help us out by suggesting one!)
Who knows?
0Votes
Anker PowerHouse 521
(Help us out by suggesting one!)
vs
Power Tool Compatibility
Power Tool Compatibility is confirmed for EcoFlow RIVER 2 Max but unavailable for Anker PowerHouse 521, making EcoFlow better for power tool users.
Shows if unit can handle power tools.
Don’t keep it to yourself — be the first to react and review the
Power Tool Compatibility on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Neither EcoFlow RIVER 2 Max nor Anker PowerHouse 521 supports EV Charging, so these models are unsuitable for electric vehicle charging needs.
Shows if it can charge electric vehicles.
In the battle of EV Charging Support,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
EV Charging Support on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Both EcoFlow RIVER 2 Max and Anker PowerHouse 521 support Off-grid Cabin Use, catering well to users needing reliable power in remote locations.
Indicates if it’s practical for powering remote cabins.
In the battle of Off-grid Cabin Use,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Off-grid Cabin Use on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Emergency Backup Use
Is it suitable for emergency backup use?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
Anker PowerHouse 521
A reliable option for emergency power supply, especially useful during power outages.
Indicates if suitable for home or emergency backup.
In the battle of Emergency Backup Use,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Emergency Backup Use on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Outdoor Camping Use
Is it suitable for camping?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
Anker PowerHouse 521
Perfect for camping or outdoor activities, keeping your devices powered off the grid.
Shows if optimized for camping and outdoor use.
In the battle of Outdoor Camping Use,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Outdoor Camping Use on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
RV/Van Use
Is it suitable for RV/van use?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
Anker PowerHouse 521
Ideal for RV or van use, ensuring your appliances have reliable power on the go.
Indicates if designed for RV or van travel applications.
In the battle of RV/Van Use,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
RV/Van Use on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Home Appliances Support
Can it power home appliances?
Yes
0Votes
EcoFlow RIVER 2 Max
Yes
0Votes
Anker PowerHouse 521
Anker PowerHouse 521
Suitable for small home appliances like fans, lights, and chargers during power outages.
Shows if capable of powering small to medium appliances.
In the battle of Home Appliances Support,
EcoFlow RIVER 2 Max ◉ is
same as
Anker PowerHouse 521 ◉
.
Don’t keep it to yourself — be the first to react and review the
Home Appliances Support on EcoFlow RIVER 2 Max ◉
vs Anker PowerHouse 521 ◉ and help others decide!
Surveys
Because hot takes deserve votes.
Battery Life
How long does this portable power station last on a full charge?
Excellent runtime — Over 40 hours
0Votes
0Votes
Long runtime — 20 to 40 hours
0Votes
0Votes
Moderate runtime — 10 to 20 hours
0Votes
0Votes
Short runtime — 5 to 10 hours
0Votes
0Votes
Very short runtime — Under 5 hours
0Votes
0Votes
Charging Speed
How fast does this portable power station recharge from empty to full?
Super fast — Under 2 hours
0Votes
0Votes
Fast — 2 to 5 hours
0Votes
0Votes
Decent — 5 to 10 hours
0Votes
0Votes
Slow — 10 to 20 hours
0Votes
0Votes
Very slow — Over 20 hours
0Votes
0Votes
Weight and Portability
How easy is it to carry this portable power station based on weight?
Ultra light — Under 10 pounds
0Votes
0Votes
Light — 10 to 20 pounds
0Votes
0Votes
Manageable — 20 to 30 pounds
0Votes
0Votes
Heavy — 30 to 50 pounds
0Votes
0Votes
Very heavy — Over 50 pounds
0Votes
0Votes
Durability
How durable is this portable power station for long-term use?
Extremely durable — Over 7 years lifespan
0Votes
0Votes
Very strong — 5 to 7 years lifespan
0Votes
0Votes
Strong — 3 to 5 years lifespan
0Votes
0Votes
Average — 1 to 3 years lifespan
0Votes
0Votes
Weak — Under 1 year lifespan
0Votes
0Votes
Noise Level
How loud is this portable power station when running?
Silent, no noise at all
0Votes
0Votes
Very quiet, barely there
0Votes
0Votes
Quiet most of the time
0Votes
0Votes
Noticeable but tolerable
0Votes
0Votes
Super noisy, hard to ignore
0Votes
0Votes
Ease of Setup
How easy is it to set up and start using this portable power station?
Super simple, ready in minutes
0Votes
0Votes
Easy to figure out
0Votes
0Votes
Straightforward with some effort
0Votes
0Votes
A bit confusing at first
0Votes
0Votes
Frustrating, takes too long
0Votes
0Votes
Design Appeal
How do you feel about the overall design and look of this portable power station?
Sleek and impressive
0Votes
0Votes
Stylish and modern
0Votes
0Votes
Okay, nothing special
0Votes
0Votes
Could look better
0Votes
0Votes
Really unattractive
0Votes
0Votes
Pricing
How do you feel about the price of this portable power station?
Great value for money
0Votes
0Votes
Pretty good price
0Votes
0Votes
Fair deal
0Votes
0Votes
Kinda pricey
0Votes
0Votes
Crazy expensive
0Votes
0Votes
Power Output
How strong is the power output of this portable power station when running multiple devices?
Extremely powerful — Over 2000W
0Votes
0Votes
Very capable — 1500 to 2000W
0Votes
0Votes
Good — 1000 to 1500W
0Votes
0Votes
Weak — 500 to 1000W
0Votes
0Votes
Very weak — Under 500W
0Votes
0Votes
Display and Control Interface
How clear and functional is the display and control panel on this portable power station?
Supermod
Moderator
Recaptor
0
Cartling
