For home backup buyers who want a large 3.5 kWh LFP battery at a low price per watt-hour and can live with its weight.
Mango Power $1,299The Mango Power E is the better portable power station overall, rated 3.8 to 3.6. The Mango Power E leads on value and charging speed. The ALLPOWERS R4000 wins on AC output and features. The Mango Power E costs $600 less ($1,299 vs $1,899).
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 $1,899Prices 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 Mango Power E for value ($0.37 per rated Wh vs $0.55 per rated Wh) and charging speed (0-100% on AC in 1 h 30 min vs 0-100% on AC in 2 h).
- Choose the ALLPOWERS R4000 for AC output (3,600 W continuous AC vs 3,000 W continuous AC) and features (UPS, 100 W USB-C, app vs expandable, 100 W USB-C, app).
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 | Mango Power E | ALLPOWERS R4000 |
|---|---|---|
| Overall rating | 3.8/5 | 3.6/5 |
| Value 25% | 90 $0.37 per rated Wh | 62 $0.55 per rated Wh |
| Tested capacity 15% | 32 77% of rated capacity delivered (1 test) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 100 LiFePO4, 6,000 cycles, 5-year warranty | 96 LiFePO4, 3,500 cycles, 5-year warranty |
| AC output 15% | 20 3,000 W continuous AC | 37 3,600 W continuous AC |
| Charging speed 10% | 79 0-100% on AC in 1 h 30 min | 63 0-100% on AC in 2 h |
| Portability 10% | 60 78 Wh per kg (100.1 lb (45.4 kg)) | 58 77 Wh per kg (99.2 lb (45 kg)) |
| Solar input 5% | 49 2,000 W max solar input | 50 2,000 W max solar input |
| Features 5% | 65 expandable, 100 W USB-C, app | 75 UPS, 100 W USB-C, app |
Independent capacity tests
Mango Power E
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| StorageReview | 2,720 Wh | 77% | Full discharge at a 350W load delivered 2.72 kWh of 3.53 kWh rated; recharge from empty drew 3.64 kWh |
ALLPOWERS R4000
No independent test published yet.
Specifications
| Mango Power E | ALLPOWERS R4000 | |
|---|---|---|
| Battery | ||
| Rated capacity | 3,533 Wh | 3,456 Wh |
| Tested usable capacity | 2,720 Wh (77%) | - |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,000 to 70% (CATL LFP cells, at 25°C, 0.5C) | 3,500 to 80% |
| Expandable | Yes, up to 7,066 Wh | - |
| Output | ||
| AC output | 3,000 W | 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 |
| USB-C ports | 2 (up to 100 W each) | 2 (up to 100 W each) |
| USB-A ports | 6 | 4 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 2 | - |
| UPS / pass-through | - | Yes |
| Charging | ||
| AC charging | 3,000 W | 2,000 W |
| Full AC charge time | 1 h 30 min (80% in 1 h, full in 1.5 h at 3,000W with the 30A fast-charging cable (sold separately); the included 15A cable charges at up to 1,800W) | 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 | 60-150V (1 MPPT) | 12-150V MPPT, 40A |
| Build | ||
| Weight | 100.1 lb (45.4 kg) | 99.2 lb (45 kg) |
| Dimensions | 17.8 x 13.6 x 19.4 in | 21.25 x 19.29 x 11.81 in |
| App | Mango Power app (Wi-Fi, Bluetooth) | ALLPOWERS app (Wi-Fi/Bluetooth) |
| Warranty | 5 years | 5 years |
