Mango Power E
#18 in Home backupFull review
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 $1,299$1,299
The Mango Power E is the better portable power station overall, rated 3.8 to 3.7. The Mango Power E leads on value, charging speed and solar input. The EcoFlow DELTA Pro wins on tested capacity and AC output. The Mango Power E costs $500 less ($1,299 vs $1,799).
EcoFlow DELTA Pro
#21 in Home backupFull review
A heavy 3.6kWh station built for home backup that can grow into a 25 kWh system. It still makes sense if you want that expansion path, but newer models give similar capacity for less.
Amazon $1,799 EcoFlow $1,799$1,799
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 Mango Power E for value ($0.37 per rated Wh vs $0.50 per rated Wh), charging speed (0-100% on AC in 1 h 30 min vs 0-100% on AC in 2 h 42 min) and solar input (2,000 W max solar input vs 1,600 W max solar input).
- Choose the EcoFlow DELTA Pro for tested capacity (84% of rated capacity delivered (2 tests) vs 77% of rated capacity delivered (1 test)) and AC output (3,600 W continuous AC vs 3,000 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 | Mango Power E | EcoFlow DELTA Pro |
|---|---|---|
| Overall rating | 3.8/5 | 3.7/5 |
| Value 25% | 90 $0.37 per rated Wh | 69 $0.50 per rated Wh |
| Tested capacity 15% | 32 77% of rated capacity delivered (1 test) | 66 84% of rated capacity delivered (2 tests) |
| 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 | 41 0-100% on AC in 2 h 42 min |
| Portability 10% | 60 78 Wh per kg (100.1 lb (45.4 kg)) | 64 80 Wh per kg (99 lb (45 kg)) |
| Solar input 5% | 49 2,000 W max solar input | 35 1,600 W max solar input |
| Features 5% | 65 expandable, 100 W USB-C, app | 65 expandable, 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 |
EcoFlow DELTA Pro
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| OutdoorGearLab | 3,060 Wh | 85% | AC discharge test; the review’s spec table lists 2,950 Wh. Measured AC recharge took a little over 2 hours. |
| The Solar Lab | - | 84% | AC discharge; load not specified. AC recharge took about 2 h 15 min; idle draw 21W. |
Specifications
| Mango Power E | EcoFlow DELTA Pro | |
|---|---|---|
| Battery | ||
| Rated capacity | 3,533 Wh | 3,600 Wh |
| Tested usable capacity | 2,720 Wh (77%) | 3,042 Wh (84%) |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,000 to 70% (CATL LFP cells, at 25°C, 0.5C) | 3,500 to 80% (6,500 to 50%) |
| Expandable | Yes, up to 7,066 Wh | Yes, up to 25,000 Wh |
| Output | ||
| AC output | 3,000 W | 3,600 W (7,200 W surge) |
| Boost mode (resistive loads) | - | 4,500 W |
| 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 | 2 |
| Charging | ||
| AC charging | 3,000 W | 1,800 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 42 min (2.7 h at 1800W on 120V; 1.8 h at 3000W on 240V) |
| Max solar input | 2,000 W | 1,600 W |
| Solar input voltage | 60-150V (1 MPPT) | 11-150V, 15A |
| Build | ||
| Weight | 100.1 lb (45.4 kg) | 99 lb (45 kg) |
| Dimensions | 17.8 x 13.6 x 19.4 in | 25 x 11.2 x 16.4 in |
| App | Mango Power app (Wi-Fi, Bluetooth) | EcoFlow app (Wi-Fi and Bluetooth) |
| Warranty | 5 years | 5 years |