Dabbsson 2000L
#2 in LargeFull review
For budget buyers who want 2 kWh of tested, efficient capacity and can tolerate slow recharging.
Amazon $648 Dabbsson $649$648
The Dabbsson 2000L rates 4.4 among large portable power stations; the Dabbsson DBS3500 rates 3.9 among home backup ones. The Dabbsson 2000L costs $951 less ($648 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 2000L | Dabbsson DBS3500 |
|---|---|---|
| Overall rating | 4.4/5 | 3.9/5 |
| Value 25% | 97 $0.32 per rated Wh | 74 $0.47 per rated Wh |
| Tested capacity 15% | 97 91% of rated capacity delivered (1 test) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 100 Semi-solid-state LiFePO4, 4,000 cycles, 5-year warranty | 100 Semi-solid-state LiFePO4, 4,500 cycles, 5-year warranty |
| AC output 15% | 44 2,200 W continuous AC | 37 3,600 W continuous AC |
| Charging speed 10% | 63 0-100% on AC in 2 h | 63 0-100% on AC in 2 h |
| Portability 10% | 100 110 Wh per kg (41 lb (18.6 kg)) | 70 84 Wh per kg (90.5 lb (41 kg)) |
| Solar input 5% | 28 800 W max solar input | 65 2,400 W max solar input |
| Features 5% | 75 UPS (15 ms), 100 W USB-C, app | 100 UPS (15 ms), expandable, 100 W USB-C, app |
Independent capacity tests
Dabbsson 2000L
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| CNET | 1,870 Wh | 91.3% | 480W load logged with HOBOware; round-trip efficiency 79.01%; recharge 3 h 28 min; ran a test fridge about 21 h |
Dabbsson DBS3500
No independent test published yet.
Specifications
| Dabbsson 2000L | Dabbsson DBS3500 | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,048 Wh | 3,430 Wh |
| Tested usable capacity | 1,870 Wh (91%) | - |
| Chemistry | Semi-solid-state LiFePO4 | Semi-solid-state LiFePO4 |
| Cycle life | 4,000 to 80% | 4,500 to 80% |
| Expandable | No | Yes, up to 14,070 Wh |
| Output | ||
| AC output | 2,200 W (4,400 W surge) | 3,600 W (7,200 W surge) |
| Boost mode (resistive loads) | 3,300 W | - |
| AC outlets | 6 total | 5 total |
| 120V 20A outlets (NEMA 5-20R) | 3 | 4 |
| 120V 2-prong outlets (NEMA 1-15R) | 3 | - |
| RV 30A outlet (TT-30R) | - | 1 |
| AC waveform | Pure sine wave | Pure sine wave |
| USB-C ports | 2 (up to 100 W each) | 3 (up to 100 W each) |
| USB-A ports | 2 | 3 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 1 | 2 |
| UPS / pass-through | Yes (15 ms switchover) | Yes (15 ms switchover) |
| Charging | ||
| AC charging | 1,500 W | 1,800 W |
| Full AC charge time | 2 h (Amazon listing claims about 1 h; CNET measured 3 h 28 min) | 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 | 800 W | 2,400 W |
| Solar input voltage | 12-60V, 20A | 12-150V, 25A max (AC + solar combined up to 3400W) |
| Car charging | 96 W | 96 W |
| Build | ||
| Weight | 41 lb (18.6 kg) | 90.5 lb (41 kg) |
| Dimensions | 18.3 x 11.2 x 8.8 in | 20.9 x 12 x 15.4 in |
| App | Wi-Fi + Bluetooth | Dabbsson app |
| Warranty | 5 years | 5 years |
| Released | 2025-06 | 2024-04 |