Dabbsson DBS2100 Pro
#11 in LargeFull review
For home-backup and RV buyers who want 2 kWh, high output and room to add batteries at a low price per watt-hour. Expect average efficiency at heavy loads.
Amazon $799 Dabbsson $799$799
The Dabbsson DBS2100 Pro rates 4.1 among large portable power stations; the Dabbsson DBS3500 rates 3.9 among home backup ones. The Dabbsson DBS2100 Pro costs $800 less ($799 vs $1,599).
Dabbsson DBS3500
#13 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 $2,558.55 Dabbsson $1,599$1,599
Prices were last checked October 24, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different size classes (large and home backup), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Dabbsson DBS2100 Pro | Dabbsson DBS3500 |
|---|---|---|
| Overall rating | 4.1/5 | 3.9/5 |
| Value 25% | 89 $0.37 per rated Wh | 74 $0.47 per rated Wh |
| Tested capacity 15% | 55 82% of rated capacity delivered (1 test) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 100 Semi-solid-state LiFePO4, 4,500 cycles, 5-year warranty | 100 Semi-solid-state LiFePO4, 4,500 cycles, 5-year warranty |
| AC output 15% | 54 2,400 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% | 78 88 Wh per kg (54 lb (24.5 kg)) | 70 84 Wh per kg (90.5 lb (41 kg)) |
| Solar input 5% | 48 1,200 W max solar input | 65 2,400 W max solar input |
| Features 5% | 100 UPS (15 ms), expandable, 100 W USB-C, app | 100 UPS (15 ms), expandable, 100 W USB-C, app |
Independent capacity tests
Dabbsson DBS2100 Pro
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| The Solar Lab | - | 82% | Continuous 2,150W load from full; an earlier run shut down at 30% from overheating. AC recharge measured at about 1 h 15 min to 80%, nearly 2 h to full. |
Dabbsson DBS3500
No independent test published yet.
Specifications
| Dabbsson DBS2100 Pro | Dabbsson DBS3500 | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,150 Wh | 3,430 Wh |
| Tested usable capacity | 1,763 Wh (82%) | - |
| Chemistry | Semi-solid-state LiFePO4 | Semi-solid-state LiFePO4 |
| Cycle life | 4,500 to 80% | 4,500 to 80% |
| Expandable | Yes, up to 6,450 Wh | Yes, up to 14,070 Wh |
| Output | ||
| AC output | 2,400 W (4,800 W surge) | 3,600 W (7,200 W surge) |
| Boost mode (resistive loads) | 3,600 W | - |
| AC outlets | 4 total | 5 total |
| 120V 20A outlets (NEMA 5-20R) | 3 | 4 |
| RV 30A outlet (TT-30R) | 1 | 1 |
| AC waveform | Pure sine wave | Pure sine wave |
| USB-C ports | 3 (up to 100 W each) | 3 (up to 100 W each) |
| USB-A ports | 3 | 3 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 2 | 2 |
| UPS / pass-through | Yes (15 ms switchover) | Yes (15 ms switchover) |
| Charging | ||
| AC charging | 1,800 W | 1,800 W |
| Full AC charge time | - | 2 h (manufacturer comparison table: 0-80% in 1.78 h on AC; 0-100% in 1.91 h on 2400W solar) |
| Max solar input | 1,200 W | 2,400 W |
| Solar input voltage | 12-60V, 25A max | 12-150V, 25A max (AC + solar combined up to 3400W) |
| Car charging | 96 W | 96 W |
| Build | ||
| Weight | 54 lb (24.5 kg) | 90.5 lb (41 kg) |
| Dimensions | 17 x 10 x 11.9 in | 20.9 x 12 x 15.4 in |
| App | Dabbsson app | Dabbsson app |
| Warranty | 5 years | 5 years |
| Released | 2024-10 | 2024-04 |