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

It offers a slightly higher 256Wh capacity and is lighter at 8.16 lbs, both with LiFePO4 and 300W AC. Choose GRECELL if the included 40W solar panel is a priority for immediate solar charging.

$150Buy on Amazon

Bottom Line: Anker 521 is the better choice. It offers a slightly higher 256Wh capacity and is lighter at 8.

Key Differences

The most significant spec differences at a glance

256

Battery Capacity

11% more

230

Dc Ports

50% less

8.16

Weight

18% less

9.92

Advantages

Where each product wins

‎Anker

Battery Capacity: 11% higher (256.0 vs 230)
Weight: 18% lower (8.16 vs 9.92)

GRECELL

Dc Ports: 50% higher (1 vs 2)

Who Should Buy Which?

Find the right product for your needs

Buy ‎Anker if...

Anker 521 Portable Power

The Anker 521 is ideal for value-conscious users who need reliable portable power with excellent battery longevity. If you prioritize a higher 256Wh capacity for under $150 and want fast 60W USB-C PD charging for laptops, this is your pick. It's perfect for casual camping, backyard parties, or as an emergency home backup for essential small electronics. You're comfortable purchasing a solar panel separately later to customize your solar charging setup.

Buy GRECELL if...

GRECELL Solar Generator with

The GRECELL Solar Generator suits those who want an immediate, all-inclusive portable power solution with solar charging capability out of the box. If you're new to solar power and want a complete system without buying components separately, the included 40W solar panel is a major draw. It's great for campers or users needing instant off-grid power for small devices, appreciating the 2 DC ports and 3000+ cycle LiFePO4 battery life for long-term use.

Spec Comparison

12 specs compared

Specification	Anker 521 Portable Power	GRECELL Solar Generator with
Price	$150	$260
Rating	4.4(3.0k)	4.6(431)
Capacity Wh	256W	230W
Chemistry	LiFePO4	LiFePO4
AC Output Watts	300W	300W
Dc Ports	1	2
AC Outlets	2	2
Weight	8.16 lbs	9.92 lbs
USB A Ports	2	2
USB C Ports	1	1
Peak Output Watts	600W	600W
Cycle Life	—	3000
Charge Time Hours	—	4.5 hrs
Solar Input Watts	—	200W

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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

GRECELL Solar Generator

Pros

3000+ charge cycles ensures long battery life
300W AC output supports small electronics
4.5hr AC wall charge, 5hr 40W solar charge
7 output ports: 2 AC, 2 USB-A, 1 USB-C, 2 DC

Cons

230Wh capacity limits extended appliance run time
Included 40W solar panel offers slow charging speed
300W continuous AC output insufficient for high power tools

Frequently Asked Questions

Common questions about this comparison

Which is better for extended outdoor trips?

The Anker 521 offers 256Wh capacity and is lighter at 8.16 lbs. The GRECELL provides 230Wh and includes a 40W solar panel, making it ready for solar recharging straight away, despite being slightly heavier at 9.92 lbs.

What is the main difference in battery capacity?

The Anker 521 has a slightly higher capacity of 256Wh compared to the GRECELL's 230Wh. Both utilize durable LiFePO4 battery chemistry, ensuring a long lifespan for your power station.

Which product provides better value for solar charging?

The GRECELL offers better immediate value for solar charging as it includes a 40W portable solar panel. For the Anker 521, you would need to purchase a solar panel separately to utilize its solar generator capabilities.

Do both support high-power appliances?

Both units offer a 300W continuous AC output and a 600W peak/surge output. This is suitable for many small electronics and some appliances, but insufficient for high-power tools or very demanding devices.