ALLPOWERS VOLIX P300
#1 in SmallFull review
A cheap, light LiFePO4 station for phones, laptops, lights and a router during outages. Pick something bigger if you need more than one AC plug or more than 300W.
Amazon $122.55$122.55
The ALLPOWERS VOLIX P300 is the better portable power station overall, rated 4.0 to 3.3. The ALLPOWERS VOLIX P300 leads on value, features and battery life. The ALLPOWERS VOLIX P300 costs $137.44 less ($122.55 vs $259.99).
Anker 521 PowerHouse
#21 in SmallFull review
For campers and travelers who want a small, long-lived LiFePO4 battery for phones, laptops, lights and CPAP. Larger or faster-charging stations give more for the money if you need to run appliances.
Amazon $259.99 Anker SOLIX $259.99$259.99
Prices were last checked October 20, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the ALLPOWERS VOLIX P300 for value ($0.48 per rated Wh vs $1.02 per rated Wh), features (UPS (20 ms), 100 W USB-C, app vs no UPS, expansion or app) and battery life (LiFePO4, 4,000 cycles, 5-year warranty vs LiFePO4, 3,000 cycles, 5-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every small portable power station; a clear win is highlighted. How we rank explains each one.
| Factor weight | ALLPOWERS VOLIX P300 | Anker 521 PowerHouse |
|---|---|---|
| Overall rating | 4.0/5 | 3.3/5 |
| Value 25% | 98 $0.48 per rated Wh | 51 $1.02 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 100 LiFePO4, 4,000 cycles, 5-year warranty | 91 LiFePO4, 3,000 cycles, 5-year warranty |
| AC output 15% | 41 300 W continuous AC | 41 300 W continuous AC |
| Charging speed 10% | 95 0-100% on AC in 1 h | 50 full AC charge time not published (neutral score used) |
| Portability 10% | 49 72 Wh per kg (7.9 lb (3.6 kg)) | 44 69 Wh per kg (8.2 lb (3.7 kg)) |
| Solar input 5% | 33 110 W max solar input | 12 65 W max solar input |
| Features 5% | 75 UPS (20 ms), 100 W USB-C, app | 0 no UPS, expansion or app |
Specifications
| ALLPOWERS VOLIX P300 | Anker 521 PowerHouse | |
|---|---|---|
| Battery | ||
| Rated capacity | 256 Wh | 256 Wh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 4,000 4,000+ cycles (manufacturer; end-of-life capacity not stated on the US page) | 3,000 to 80% |
| Expandable | No | No |
| Output | ||
| AC output | 300 W (600 W surge) | 300 W (600 W surge) |
| AC outlets | 1 total | 2 total |
| 120V 15A outlets (NEMA 5-15R) | 1 | - |
| 120V 2-prong outlets (NEMA 1-15R) | - | 2 |
| AC waveform | Pure sine wave | - |
| USB-C ports | 1 (100 W) | 1 (60 W) |
| USB-A ports | 2 | 2 |
| 12 V car outlet | Yes | Yes |
| UPS / pass-through | Yes (20 ms switchover) | - |
| Charging | ||
| AC charging | 300 W | 125 W |
| Full AC charge time | 1 h (manufacturer spec table; the Amazon listing says as little as 2 hours) | - |
| Max solar input | 110 W | 65 W |
| Solar input voltage | 11-30V, 8A (XT60) | 11-28V, 5.5A |
| Car charging | 110 W | - |
| Build | ||
| Weight | 7.9 lb (3.6 kg) | 8.2 lb (3.7 kg) |
| Dimensions | 10.2 x 8.2 x 4.9 in | 8.5 x 8.3 x 5.7 in |
| App | ALLPOWERS app (Wi-Fi/Bluetooth) | - |
| Warranty | 5 years | 5 years |