Dabbsson DBS3500
#14 in Home backupFull review
For homeowners building a whole-circuit backup system who want 3.4 kWh now, fast solar charging and a path to 240V. It is too heavy to treat as a camping unit.
Amazon $2,537.88 Dabbsson $1,599$1,599
The Dabbsson DBS3500 is the better portable power station overall, rated 3.8 to 3.8. The Dabbsson DBS3500 leads on AC output, features and portability. The Mango Power E wins on value. The Mango Power E costs $300 less ($1,299 vs $1,599).
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
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 Dabbsson DBS3500 for AC output (3,600 W continuous AC vs 3,000 W continuous AC), features (UPS (15 ms), expandable, 100 W USB-C, app vs expandable, 100 W USB-C, app) and portability (84 Wh per kg (90.5 lb (41 kg)) vs 78 Wh per kg (100.1 lb (45.4 kg))).
- Choose the Mango Power E for value ($0.37 per rated Wh vs $0.47 per rated Wh).
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 | Dabbsson DBS3500 | Mango Power E |
|---|---|---|
| Overall rating | 3.8/5 | 3.8/5 |
| Value 25% | 74 $0.47 per rated Wh | 90 $0.37 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 32 77% of rated capacity delivered (1 test) |
| Battery life 15% | 100 Semi-solid-state LiFePO4, 4,500 cycles, 5-year warranty | 100 LiFePO4, 6,000 cycles, 5-year warranty |
| AC output 15% | 37 3,600 W continuous AC | 20 3,000 W continuous AC |
| Charging speed 10% | 50 full AC charge time not published (neutral score used) | 79 0-100% on AC in 1 h 30 min |
| Portability 10% | 70 84 Wh per kg (90.5 lb (41 kg)) | 60 78 Wh per kg (100.1 lb (45.4 kg)) |
| Solar input 5% | 65 2,400 W max solar input | 49 2,000 W max solar input |
| Features 5% | 100 UPS (15 ms), expandable, 100 W USB-C, app | 65 expandable, 100 W USB-C, app |
Independent capacity tests
Dabbsson DBS3500
No independent test published yet.
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 |
Specifications
| Dabbsson DBS3500 | Mango Power E | |
|---|---|---|
| Battery | ||
| Rated capacity | 3,430 Wh | 3,533 Wh |
| Tested usable capacity | - | 2,720 Wh (77%) |
| Chemistry | Semi-solid-state LiFePO4 | LiFePO4 |
| Cycle life | 4,500 to 80% | 6,000 to 70% (CATL LFP cells, at 25°C, 0.5C) |
| Expandable | Yes, up to 14,070 Wh | Yes, up to 7,066 Wh |
| Output | ||
| AC output | 3,600 W (7,200 W surge) | 3,000 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 | 3 (up to 100 W each) | 2 (up to 100 W each) |
| USB-A ports | 3 | 6 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 2 | 2 |
| UPS / pass-through | Yes (15 ms switchover) | - |
| Charging | ||
| AC charging | 1,800 W | 3,000 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) |
| Max solar input | 2,400 W | 2,000 W |
| Solar input voltage | 12-150V, 25A max (AC + solar combined up to 3400W) | 60-150V (1 MPPT) |
| Build | ||
| Weight | 90.5 lb (41 kg) | 100.1 lb (45.4 kg) |
| Dimensions | 20.9 x 12 x 15.4 in | 17.8 x 13.6 x 19.4 in |
| App | Dabbsson app | Mango Power app (Wi-Fi, Bluetooth) |
| Warranty | 5 years | 5 years |