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 $2,899The FOSSiBOT F7200 is the better portable power station overall, rated 4.0 to 3.8. The FOSSiBOT F7200 leads on value. The EcoFlow DELTA Pro Ultra wins on solar input. The FOSSiBOT F7200 costs $1,750 less ($2,449 vs $4,199).
A modular 6kWh home-backup system for buyers who need 240V output and plan to expand. Overkill for camping or short outages.
Amazon $4,199 EcoFlow $4,199Prices 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).
- Choose the EcoFlow DELTA Pro Ultra for solar input (5,600 W max solar input vs 3,700 W max solar input).
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 Ultra |
|---|---|---|
| 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) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 100 LiFePO4, 6,500 cycles, 5-year warranty | 96 LiFePO4, 3,500 cycles, 5-year warranty |
| AC output 15% | 100 7,200 W continuous AC | 100 7,200 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)) | 54 75 Wh per kg (181.8 lb (82.4 kg)) |
| Solar input 5% | 66 3,700 W max solar input | 90 5,600 W max solar input |
| Features 5% | 100 UPS (10 ms), expandable, 100 W USB-C, app | 100 UPS (0 ms), expandable, 100 W USB-C, app |
Specifications
| FOSSiBOT F7200 | EcoFlow DELTA Pro Ultra | |
|---|---|---|
| Battery | ||
| Rated capacity | 5,222 Wh | 6,144 Wh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,500 to 80% | 3,500 to 80% |
| Expandable | Yes, up to 15,667 Wh | Yes, up to 30,000 Wh |
| Output | ||
| AC output | 7,200 W (9,000 W surge) | 7,200 W (10,800 W surge) |
| AC outlets | 6 total | 6 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 | - |
| AC waveform | - | Pure sine wave, 120/240V split phase |
| 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 | - |
| UPS / pass-through | Yes (10 ms switchover) | Yes (0 ms switchover) |
| Charging | ||
| AC charging | 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 | 5,600 W |
| Solar input voltage | 120-450V, 2500W (HV) + 12-55V, 1200W (LV) | High-voltage 80-450V (4000W) and low-voltage 30-150V (1600W) |
| Car charging | 200 W | - |
| Build | ||
| Weight | 154.3 lb (70 kg) | 181.8 lb (82.4 kg) |
| Dimensions | 26.4 x 17.7 x 16.1 in | Inverter 27.2 x 18.9 x 8.4 in; battery 26 x 18 x 8 in |
| App | FOSSiBOT app | EcoFlow app (Bluetooth, Wi-Fi and 4G) |
| Warranty | 5 years | 5 years |
