FOSSiBOT F1800
#4 in Mid-sizeFull review
A budget 1kWh LiFePO4 station for camping and short outages, with fast wall charging and strong USB-C ports.
Amazon $399 FOSSiBOT $419$399
The FOSSiBOT F1800 is the better portable power station overall, rated 4.4 to 4.0. The FOSSiBOT F1800 leads on value and portability. The Dabbsson DBS1000 Pro wins on solar input and features. The FOSSiBOT F1800 costs $220 less ($399 vs $619).
Dabbsson DBS1000 Pro
#24 in Mid-sizeFull review
For buyers who want a 1 kWh station that can run high-wattage appliances and grow into a larger home-backup system later. Campers who just need 1 kWh can save weight and money with a non-expandable unit.
Amazon $619 Dabbsson $619$619
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 FOSSiBOT F1800 for value ($0.39 per rated Wh vs $0.60 per rated Wh) and portability (91 Wh per kg (24.8 lb (11.2 kg)) vs 66 Wh per kg (34.4 lb (15.6 kg))).
- Choose the Dabbsson DBS1000 Pro for solar input (1,200 W max solar input vs 500 W max solar input) and features (UPS (15 ms), expandable, 100 W USB-C, app vs UPS (10 ms), 140 W USB-C, app).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every mid-size portable power station; a clear win is highlighted. How we rank explains each one.
| Factor weight | FOSSiBOT F1800 | Dabbsson DBS1000 Pro |
|---|---|---|
| Overall rating | 4.4/5 | 4.0/5 |
| Value 25% | 95 $0.39 per rated Wh | 66 $0.60 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 LiFePO4, 4,000 cycles, 5-year warranty | 100 Semi-solid-state LiFePO4, 4,500 cycles, 5-year warranty |
| AC output 15% | 82 1,800 W continuous AC | 88 2,000 W continuous AC |
| Charging speed 10% | 91 0-100% on AC in 1 h 8 min | 50 full AC charge time not published (neutral score used) |
| Portability 10% | 84 91 Wh per kg (24.8 lb (11.2 kg)) | 38 66 Wh per kg (34.4 lb (15.6 kg)) |
| Solar input 5% | 40 500 W max solar input | 100 1,200 W max solar input |
| Features 5% | 75 UPS (10 ms), 140 W USB-C, app | 100 UPS (15 ms), expandable, 100 W USB-C, app |
Specifications
| FOSSiBOT F1800 | Dabbsson DBS1000 Pro | |
|---|---|---|
| Battery | ||
| Rated capacity | 1,024 Wh | 1,024 Wh |
| Chemistry | LiFePO4 | Semi-solid-state LiFePO4 |
| Cycle life | 4,000 to 80% | 4,500 to 80% |
| Expandable | No | Yes, up to 5,120 Wh |
| Output | ||
| AC output | 1,800 W (3,600 W surge) | 2,000 W (4,000 W surge) |
| Boost mode (resistive loads) | - | 3,000 W |
| AC outlets | 3 total | 4 total |
| 120V 20A outlets (NEMA 5-20R) | 3 | 4 |
| AC waveform | Pure sine wave | Pure sine wave |
| USB-C ports | 2 (up to 140 W each) | 3 (up to 100 W each) |
| USB-A ports | 1 | 3 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | - | 2 |
| UPS / pass-through | Yes (10 ms switchover) | Yes (15 ms switchover) |
| Charging | ||
| AC charging | 1,200 W | 1,200 W |
| Full AC charge time | 1 h 8 min | - |
| Max solar input | 500 W | 1,200 W |
| Solar input voltage | 12-60V, 15A | 12-60V, 25A max |
| Car charging | 120 W | - |
| Build | ||
| Weight | 24.8 lb (11.2 kg) | 34.4 lb (15.6 kg) |
| Dimensions | 14.6 x 8.1 x 10.2 in | 17 x 10 x 9.98 in |
| App | FOSSiBOT app (Wi-Fi/Bluetooth) | Dabbsson app |
| Warranty | 5 years | 5 years |