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
The FOSSiBOT F1800 is the better portable power station overall, rated 4.4 to 3.5. The FOSSiBOT F1800 leads on value and portability. The Goal Zero Yeti 1000 wins on solar input. The FOSSiBOT F1800 costs $800.95 less ($399 vs $1,199.95).
Goal Zero Yeti 1000
#35 in Mid-sizeFull review
For overlanders, van builders and campers who want a weather-resistant 1 kWh station that can run high-draw appliances, and are willing to pay more per watt-hour for the build.
B&H Goal Zero $1,199.95$1,199.95
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 FOSSiBOT F1800 for value ($0.39 per rated Wh vs $1.20 per rated Wh) and portability (91 Wh per kg (24.8 lb (11.2 kg)) vs 62 Wh per kg (35.3 lb (16 kg))).
- Choose the Goal Zero Yeti 1000 for solar input (900 W max solar input vs 500 W max solar input).
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 | Goal Zero Yeti 1000 |
|---|---|---|
| Overall rating | 4.4/5 | 3.5/5 |
| Value 25% | 95 $0.39 per rated Wh | 0 $1.20 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 LiFePO4, 4,000 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 | 88 0-100% on AC in 1 h 12 min |
| Portability 10% | 84 91 Wh per kg (24.8 lb (11.2 kg)) | 32 62 Wh per kg (35.3 lb (16 kg)) |
| Solar input 5% | 40 500 W max solar input | 88 900 W max solar input |
| Features 5% | 75 UPS (10 ms), 140 W USB-C, app | 75 UPS (15 ms), 140 W USB-C, app |
Specifications
| FOSSiBOT F1800 | Goal Zero Yeti 1000 | |
|---|---|---|
| Battery | ||
| Rated capacity | 1,024 Wh | 998.4 Wh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 4,000 to 80% | 4,000 to 80% |
| Expandable | No | No |
| Output | ||
| AC output | 1,800 W (3,600 W surge) | 2,000 W (3,600 W surge) |
| 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) | 4 (up to 140 W each) |
| USB-A ports | 1 | 2 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 0 | 0 |
| UPS / pass-through | Yes (10 ms switchover) | Yes (15 ms switchover) |
| Charging | ||
| AC charging | 1,200 W | 1,000 W |
| Full AC charge time | 1 h 8 min | 1 h 12 min (1.2 h full, 0-80% in 0.8 h (manufacturer spec page; user guide says 1.1 h)) |
| Max solar input | 500 W | 900 W |
| Solar input voltage | 12-60V, 15A | HPP 12.3-60V (600W) + 8mm 13.2-30V (300W) |
| Car charging | 120 W | 120 W |
| Build | ||
| Weight | 24.8 lb (11.2 kg) | 35.3 lb (16 kg) |
| Dimensions | 14.6 x 8.1 x 10.2 in | 15.7 x 11.4 x 10.5 in |
| App | FOSSiBOT app (Wi-Fi/Bluetooth) | Goal Zero Power app |
| Warranty | 5 years | 5 years |
| Released | 2026-07 | 2026-09 |