Dabbsson 1000L
#2 in Mid-sizeFull review
For budget buyers who want 1 kWh of LiFePO4 storage for camping or short outages at a low price per watt-hour. The two AC outlets limit how many appliances it can run directly.
Amazon $386 Dabbsson $386$386
The Dabbsson 1000L and the FOSSiBOT F1800 are evenly matched, rated 4.4 and 4.4. The Dabbsson 1000L leads on solar input. The FOSSiBOT F1800 wins on AC output. The Dabbsson 1000L costs $13 less ($386 vs $399).
FOSSiBOT F1800 Preorder
#8 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
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.
Which should you buy?
- Choose the Dabbsson 1000L for solar input (600 W max solar input vs 500 W max solar input).
- Choose the FOSSiBOT F1800 for AC output (1,800 W continuous AC vs 1,200 W continuous AC).
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 | Dabbsson 1000L | FOSSiBOT F1800 |
|---|---|---|
| Overall rating | 4.4/5 | 4.4/5 |
| Value 25% | 96 $0.38 per rated Wh | 95 $0.39 per rated Wh |
| Tested capacity 15% | 79 87% 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 LiFePO4, 4,000 cycles, 5-year warranty |
| AC output 15% | 56 1,200 W continuous AC | 82 1,800 W continuous AC |
| Charging speed 10% | 88 0-100% on AC in 1 h 12 min | 91 0-100% on AC in 1 h 8 min |
| Portability 10% | 86 93 Wh per kg (24 lb (10.9 kg)) | 84 91 Wh per kg (24.8 lb (11.2 kg)) |
| Solar input 5% | 52 600 W max solar input | 40 500 W max solar input |
| Features 5% | 75 UPS (15 ms), 100 W USB-C, app | 75 UPS (10 ms), 140 W USB-C, app |
Independent capacity tests
Dabbsson 1000L
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| mybest | 880 Wh | 87.3% | Japanese-market 1000L (same 1,008 Wh rating) run on a halogen heater from full until 0%; mybest reports 87.3% conversion efficiency and 880 Wh real capacity. |
FOSSiBOT F1800
No independent test published yet.
Specifications
| Dabbsson 1000L | FOSSiBOT F1800 | |
|---|---|---|
| Battery | ||
| Rated capacity | 1,008 Wh | 1,024 Wh |
| Tested usable capacity | 880 Wh (87%) | - |
| Chemistry | Semi-solid-state LiFePO4 | LiFePO4 |
| Cycle life | 4,000 to 80% | 4,000 to 80% |
| Expandable | No | No |
| Output | ||
| AC output | 1,200 W (2,400 W surge) | 1,800 W (3,600 W surge) |
| Boost mode (resistive loads) | 1,800 W | - |
| AC outlets | 2 total | 3 total |
| 120V 15A outlets (NEMA 5-15R) | 2 | - |
| 120V 20A outlets (NEMA 5-20R) | - | 3 |
| AC waveform | Pure sine wave | Pure sine wave |
| USB-C ports | 2 (up to 100 W each) | 2 (up to 140 W each) |
| USB-A ports | 2 | 1 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 1 | 0 |
| UPS / pass-through | Yes (15 ms switchover) | Yes (10 ms switchover) |
| Charging | ||
| AC charging | 1,000 W | 1,200 W |
| Full AC charge time | 1 h 12 min (manufacturer: 0-80% in 50 min; full-charge time not published) | 1 h 8 min |
| Max solar input | 600 W | 500 W |
| Solar input voltage | 12-60V, 21A max (AC + solar combined up to 1400W) | 12-60V, 15A |
| Car charging | 200 W | 120 W |
| Build | ||
| Weight | 24 lb (10.9 kg) | 24.8 lb (11.2 kg) |
| Dimensions | 15.3 x 7.4 x 9.4 in | 14.6 x 8.1 x 10.2 in |
| App | Dabbsson app | FOSSiBOT app (Wi-Fi/Bluetooth) |
| Warranty | 5 years | 5 years |
| Released | 2025-06 | 2026-07 |