FOSSiBOT F7200
#7 in Home backupFull review
A 240V home-backup station for buyers who want to run a home circuit or well pump through outages at a lower price than the big-name brands.
Amazon $2,449 FOSSiBOT $2,899$2,449
The FOSSiBOT F7200 is the better portable power station overall, rated 4.0 to 3.8. The FOSSiBOT F7200 leads on value, AC output and solar input. The EcoFlow DELTA Pro 3 wins on portability. The FOSSiBOT F7200 costs $350 less ($2,449 vs $2,799).
EcoFlow DELTA Pro 3
#15 in Home backupFull review
For households that want a single wheeled unit able to back up 240V circuits and expand toward whole-home capacity.
Amazon $2,799 EcoFlow $2,799$2,799
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 F7200 for value ($0.47 per rated Wh vs $0.68 per rated Wh), AC output (7,200 W continuous AC vs 4,000 W continuous AC) and solar input (3,700 W max solar input vs 2,600 W max solar input).
- Choose the EcoFlow DELTA Pro 3 for portability (80 Wh per kg (113.5 lb (51.5 kg)) vs 75 Wh per kg (154.3 lb (70 kg))).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every home backup portable power station; a clear win is highlighted. How we rank explains each one.
| Factor weight | FOSSiBOT F7200 | EcoFlow DELTA Pro 3 |
|---|---|---|
| Overall rating | 4.0/5 | 3.8/5 |
| Value 25% | 74 $0.47 per rated Wh | 41 $0.68 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 100 93% of rated capacity delivered (1 test) |
| Battery life 15% | 100 LiFePO4, 6,500 cycles, 5-year warranty | 100 LiFePO4, 4,000 cycles, 5-year warranty |
| AC output 15% | 100 7,200 W continuous AC | 46 4,000 W continuous AC |
| Charging speed 10% | 16 0-100% on AC in 3 h 30 min | 50 full AC charge time not published (neutral score used) |
| Portability 10% | 54 75 Wh per kg (154.3 lb (70 kg)) | 63 80 Wh per kg (113.5 lb (51.5 kg)) |
| Solar input 5% | 66 3,700 W max solar input | 57 2,600 W max solar input |
| Features 5% | 100 UPS (10 ms), expandable, 100 W USB-C, app | 100 UPS (10 ms), expandable, 100 W USB-C, app |
Independent capacity tests
FOSSiBOT F7200
No independent test published yet.
EcoFlow DELTA Pro 3
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| OutdoorGearLab | 3,790 Wh | 92.5% | Full-discharge AC test; OutdoorGearLab states over 93%, 3790/4096 works out to 92.5%. Recharged from empty in about 3.2 h at about 1600W peak. |
Specifications
| FOSSiBOT F7200 | EcoFlow DELTA Pro 3 | |
|---|---|---|
| Battery | ||
| Rated capacity | 5,222 Wh | 4,096 Wh |
| Tested usable capacity | - | 3,790 Wh (93%) |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,500 to 80% | 4,000 to 80% |
| Expandable | Yes, up to 15,667 Wh | Yes, up to 12,000 Wh |
| Output | ||
| AC output | 7,200 W (9,000 W surge) | 4,000 W (8,000 W surge) |
| Boost mode (resistive loads) | - | 6,000 W |
| AC outlets | 6 total | 7 total |
| 120V 20A outlets (NEMA 5-20R) | 4 | 4 |
| RV 30A outlet (TT-30R) | - | 1 |
| 120/240V 30A twist-lock (NEMA L14-30R) | 1 | 1 |
| 120/240V 50A outlet (NEMA 14-50R) | 1 | - |
| 240V 20A outlet (NEMA 6-20R) | - | 1 |
| USB-C ports | 2 (up to 100 W each) | 2 (up to 100 W each) |
| USB-A ports | 1 | 2 |
| 12 V car outlet | No | - |
| DC5521 ports | - | 1 |
| UPS / pass-through | Yes (10 ms switchover) | Yes (10 ms switchover) |
| Charging | ||
| AC charging | 1,800 W | 1,800 W |
| Full AC charge time | 3 h 30 min (Manufacturer: about 3.5 hours at 120V; 3000W at 240V in about 2.2 hours) | - |
| Max solar input | 3,700 W | 2,600 W |
| Solar input voltage | 120-450V, 2500W (HV) + 12-55V, 1200W (LV) | HV 30-150V (1600W) + LV 11-60V (1000W) |
| Car charging | 200 W | - |
| Build | ||
| Weight | 154.3 lb (70 kg) | 113.5 lb (51.5 kg) |
| Dimensions | 26.4 x 17.7 x 16.1 in | 27.28 x 16.16 x 13.43 in |
| App | FOSSiBOT app | Wi-Fi + Bluetooth |
| Warranty | 5 years | 5 years |