For home-backup buyers who want 2.3 kWh now and a path to a large parallel system later. It is heavy, so it suits staying in one place rather than frequent carrying.
Amazon $1,599 Dabbsson $899The Dabbsson DBS2300 Plus rates 4.0 among large portable power stations; the Dabbsson DBS3500 rates 3.9 among home backup ones. The Dabbsson DBS2300 Plus costs $700 less ($899 vs $1,599).

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 $1,599Prices 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 DBS2300 Plus | Dabbsson DBS3500 |
|---|---|---|
| Overall rating | 4.0/5 | 3.9/5 |
| Value 25% | 87 $0.39 per rated Wh | 74 $0.47 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 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% | 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% | 79 88 Wh per kg (58.1 lb (26.4 kg)) | 70 84 Wh per kg (90.5 lb (41 kg)) |
| Solar input 5% | 23 800 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 |
Specifications
| Dabbsson DBS2300 Plus | Dabbsson DBS3500 | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,330 Wh | 3,430 Wh |
| Chemistry | Semi-solid-state LiFePO4 | Semi-solid-state LiFePO4 |
| Cycle life | 4,500 to 80% | 4,500 to 80% |
| Expandable | Yes, up to 8,330 Wh | 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) | 3,000 W | - |
| AC outlets | 4 total | 5 total |
| 120V 20A outlets (NEMA 5-20R) | 4 | 4 |
| RV 30A outlet (TT-30R) | - | 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 1.5 h; full-charge time not published) | 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, 25A max (AC + solar combined up to 1800W) | 12-150V, 25A max (AC + solar combined up to 3400W) |
| Car charging | 96 W | 96 W |
| Build | ||
| Weight | 58.1 lb (26.4 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 | 2023-02 | 2024-04 |