ALLPOWERS R3500
#19 in Home backupFull review
For home backup on a budget where the unit stays in one place, with room for a second battery later.
ALLPOWERS $1,424$1,424
The ALLPOWERS R3500 is the better portable power station overall, rated 3.7 to 3.6. The ALLPOWERS R3500 leads on value and features. The ALLPOWERS R4000 wins on AC output. The ALLPOWERS R3500 costs $475 less ($1,424 vs $1,899).
ALLPOWERS R4000
#24 in Home backupFull review
A wheeled 3.5 kWh LiFePO4 station for RVs, food trucks and home backup at a lower price than the big brands. It is 120V only.
ALLPOWERS $1,899$1,899
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 R3500 for value ($0.45 per rated Wh vs $0.55 per rated Wh) and features (UPS (15 ms), expandable, 100 W USB-C, app vs UPS, 100 W USB-C, app).
- Choose the ALLPOWERS R4000 for AC output (3,600 W continuous AC vs 3,200 W continuous AC).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every home backup portable power station; a clear win is highlighted. How we rank explains each one.
| Factor weight | ALLPOWERS R3500 | ALLPOWERS R4000 |
|---|---|---|
| Overall rating | 3.7/5 | 3.6/5 |
| Value 25% | 77 $0.45 per rated Wh | 62 $0.55 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% | 96 LiFePO4, 3,500 cycles, 5-year warranty | 96 LiFePO4, 3,500 cycles, 5-year warranty |
| AC output 15% | 26 3,200 W continuous AC | 37 3,600 W continuous AC |
| Charging speed 10% | 50 full AC charge time not published (neutral score used) | 63 0-100% on AC in 2 h |
| Portability 10% | 55 75 Wh per kg (93 lb (42 kg)) | 58 77 Wh per kg (99.2 lb (45 kg)) |
| Solar input 5% | 57 2,000 W max solar input | 50 2,000 W max solar input |
| Features 5% | 100 UPS (15 ms), expandable, 100 W USB-C, app | 75 UPS, 100 W USB-C, app |
Specifications
| ALLPOWERS R3500 | ALLPOWERS R4000 | |
|---|---|---|
| Battery | ||
| Rated capacity | 3,168 Wh | 3,456 Wh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 3,500 3,500+ cycles (manufacturer; end-of-life capacity not stated) | 3,500 to 80% |
| Expandable | Yes, up to 6,336 Wh | - |
| Output | ||
| AC output | 3,200 W (6,000 W surge) | 3,600 W (6,000 W surge) |
| AC outlets | 5 total | 5 total |
| 120V 20A outlets (NEMA 5-20R) | 4 | 4 |
| RV 30A outlet (TT-30R) | 1 | 1 |
| AC waveform | Pure sine wave | Pure sine wave |
| USB-C ports | 2 (up to 100 W each) | 2 (up to 100 W each) |
| USB-A ports | - | 4 |
| 12 V car outlet | Yes | Yes |
| UPS / pass-through | Yes (15 ms switchover) | Yes |
| Charging | ||
| AC charging | 1,500 W | 2,000 W |
| Full AC charge time | - | 2 h (single high-voltage AC input; up to 3,000W combined AC and solar) |
| Max solar input | 2,000 W | 2,000 W |
| Solar input voltage | 12-150V, 40A (XT60) | 12-150V MPPT, 40A |
| Build | ||
| Weight | 93 lb (42 kg) | 99.2 lb (45 kg) |
| Dimensions | 20.86 x 14.17 x 13.58 in | 21.25 x 19.29 x 11.81 in |
| App | ALLPOWERS app (Wi-Fi/Bluetooth) | ALLPOWERS app (Wi-Fi/Bluetooth) |
| Warranty | 5 years | 5 years |