At a glance
Full specs ↓- Capacity
- 256 Wh
- Usable energy
- 230 Wh
- AC output
- 200 W
- Surge
- 400 W
- Chemistry
- LiFePO4
- Cycle life
- 3000 cycles
- Max solar
- 100 W
- Weight
- 8.2 lb
An estimate, not a measurement: we derate the 256 Wh rating for a safe depth-of-discharge and ~15% inverter loss (DC→AC). We haven't bench-tested this unit yet, so treat it as a solid approximation.
Anker 521 PowerHouse
The Anker 521 PowerHouse is a 256Wh LiFePO4 portable power station delivering 200W continuous (400W surge). Rated for ~3000 cycles and up to 100W of solar input.
Affiliate link — we may earn a commission at no cost to you.
Prices refresh daily and may change — confirm on the retailer's site.
We've tracked 2 prices over the last 90 days, ranging from $186 to $199. It's currently $186.
See all recorded prices ↓ Hide recorded prices ↑
| Date | Price | Change |
|---|---|---|
| Jul 21, 2026 | $186 | ▼ $13 |
| Jul 21, 2026 | $199 | — |
Full specifications
| Battery capacity | 256 Wh |
| Usable capacity | 230 Wh |
| AC output | 200 W |
| Surge output | 400 W |
| Chemistry | LiFePO4 |
| Cycle life | 3000 cycles |
| Max solar input | 100 W |
| Expandable | No |
| Weight | 8.2 lb |
| Warranty | 5 yrs |
| Ports | 2x AC | 1x USB-C | 2x USB-A | 1x car |
Video review
We recommend watching a real-world test before buying. Here's a hands-on review of the 521 PowerHouse:
▶Watch Anker 521 PowerHouse on YouTubeHobotech / DIY Solar PowerChannels we trust for hands-on testing
Independent reviewers who bench-test capacity, inverters and real-world runtime.
How long will the 521 PowerHouse run…
Estimated runtime per full charge for common loads.
Similar options to compare
