Name: Anker 521 Portable Power Station Upgraded with LiFePO4 Battery, 256Wh 6-Port PowerHouse, 300W (Peak 600W) Solar Generator (Solar Panel Optional), 2...
Brand: ‎Anker
SKU: B09FF46FQ9
Price: 149.99 USD
Availability: InStock
Rating: 4.4 (2971 reviews)

Our Verdict

Anker 521 Wins

‎Anker Anker 521 Portable Power Station Upgraded with LiFePO4 Battery, 256Wh 6-Port PowerHouse, 300W (Peak 600W) Solar Generator (Solar Panel Optional), 2 AC Outlets, 60W USB-C PD Output, Outdoor Generator - Portable Power Stations

Its LiFePO4 chemistry ensures a 10-year lifespan and 600W peak output. Choose ZeroKor for lighter 5lbs portability and slightly higher 280Wh capacity, despite using less durable Li-ion.

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Bottom Line: Anker 521 is the better choice. Its LiFePO4 chemistry ensures a 10-year lifespan and 600W peak output.

Key Differences

The most significant spec differences at a glance

256

Battery Capacity

9% less

280

USB-A Ports

50% less

8.16

Weight

63% more

Advantages

Where each product wins

ZeroKor

Battery Capacity: 9% higher (256.0 vs 280.0)
USB-A Ports: 50% higher (2 vs 4)
Weight: 63% lower (8.16 vs 5.0)

Who Should Buy Which?

Find the right product for your needs

Buy ‎Anker if...

Anker 521 Portable Power

If you prioritize long-term durability and value for money, the Anker 521 is ideal. Its LiFePO4 battery chemistry offers an impressive 10-year lifespan, making it a reliable investment for years to come. Perfect for users needing a robust power source for occasional higher-draw appliances, thanks to its 600W peak output. It's also great for efficiently charging laptops via its 60W USB-C PD port during extended outdoor stays or power outages. This unit suits those who need dependable, lasting power for various devices, despite its slightly heavier 8.16 lbs weight.

Buy ZeroKor if...

Portable Power Station 300W

The ZeroKor Portable Power Station is perfect for outdoor enthusiasts who prioritize extreme portability. Weighing only 5 lbs, it's significantly lighter, making it ideal for backpacking, hiking, or minimal gear camping where every ounce counts. Its 280Wh capacity provides ample power for small electronics like phones, cameras, or even a CPAP machine for a night. The pure sine wave AC output ensures safe and stable power for sensitive devices. If a lightweight, easy-to-carry power source for essential electronics is your primary need, ZeroKor is the optimal choice.

Spec Comparison

10 specs compared

Specification	Anker 521 Portable Power	ZeroKor Portable Power Station
Price	$150	$160
Rating	4.4(3.0k)	4.3(1.4k)
Capacity Wh	256W	280W
Chemistry	LiFePO4	Li-ion
AC Output Watts	300W	300W
Dc Ports	1	1
AC Outlets	2	2
Weight	8.16 lbs	5 lbs
USB A Ports	2	4
USB C Ports	1	—
Peak Output Watts	600W	—
Model Number	—	R200

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Pros & Cons

Quick overview of strengths and weaknesses

‎Anker Anker 521

Pros

LiFePO4 battery provides 10-year lifespan
Peak 600W output handles high-draw appliances
60W USB-C PD port recharges laptops quickly
Six outputs: 2 AC, 1 USB-C PD, 2 USB-A, 1 DC

Cons

8.16 lbs unit weight impacts portability
256Wh capacity limits high-draw use cases
Solar charging requires separate panel purchase

ZeroKor Portable Power

Pros

300W pure sine wave AC output for sensitive devices.
280Wh capacity suitable for small electronics.
Multiple ports: 2 AC, 1 DC, 4 USB, QC3.0.
Lightweight 5lbs design enhances portability.

Cons

300W AC output limit restricts high-power appliances.
Solar panel for charging must be purchased separately.
Requires regular recharging; not for long-term storage.
AC output requires manual activation/deactivation.

Frequently Asked Questions

Common questions about this comparison

Which is better for extended outdoor trips?

Anker 521 is better for extended use due to its LiFePO4 battery, offering a 10-year lifespan and better durability. While ZeroKor has 280Wh vs Anker's 256Wh, Anker's 600W peak output and robust battery make it more reliable long-term.

What is the main difference in battery chemistry?

Anker uses LiFePO4, providing a significantly longer lifespan (10 years) and greater stability compared to ZeroKor's standard Li-ion battery. LiFePO4 is more durable for repeated charging cycles and storage.

Which power station is more portable?

ZeroKor is more portable, weighing only 5.0 lbs compared to the Anker 521 at 8.16 lbs. This makes the ZeroKor a better choice for activities where every pound counts, despite its Li-ion chemistry.

Can either power larger home appliances?

Both have a 300W continuous AC output, limiting them to small appliances. However, the Anker 521 has a 600W peak output, which can momentarily handle devices with higher startup wattage, offering slightly more versatility.