For homeowners who want a 240V-capable backup battery that grows with expansion packs, not a grab-and-go unit.
Amazon $1,498.98 BLUETTI $1,499The BLUETTI Apex 300 rates 4.0 among large portable power stations; the FOSSiBOT F7200 rates 4.0 among home backup ones. The BLUETTI Apex 300 costs $950.02 less ($1,498.98 vs $2,449).

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 $2,899Prices 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.
Scores side by side
These two sit in different size classes (large and home backup), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | BLUETTI Apex 300 | FOSSiBOT F7200 |
|---|---|---|
| Overall rating | 4.0/5 | 4.0/5 |
| Value 25% | 63 $0.54 per rated Wh | 74 $0.47 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, 6,000 cycles, 5-year warranty | 100 LiFePO4, 6,500 cycles, 5-year warranty |
| AC output 15% | 100 3,840 W continuous AC | 100 7,200 W continuous AC |
| Charging speed 10% | 50 full AC charge time not published (neutral score used) | 16 0-100% on AC in 3 h 30 min |
| Portability 10% | 50 73 Wh per kg (83.8 lb (38 kg)) | 54 75 Wh per kg (154.3 lb (70 kg)) |
| Solar input 5% | 84 2,400 W max solar input | 66 3,700 W max solar input |
| Features 5% | 80 UPS (0 ms), expandable, app | 100 UPS (10 ms), expandable, 100 W USB-C, app |
Specifications
| BLUETTI Apex 300 | FOSSiBOT F7200 | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,764.8 Wh | 5,222 Wh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,000 to 80% | 6,500 to 80% |
| Expandable | Yes, up to 19,353.6 Wh | Yes, up to 15,667 Wh |
| Output | ||
| AC output | 3,840 W (7,680 W surge) | 7,200 W (9,000 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 |
| 120/240V 50A outlet (NEMA 14-50R) | 1 | 1 |
| USB-C ports | 0 | 2 (up to 100 W each) |
| USB-A ports | 0 | 1 |
| 12 V car outlet | No | No |
| DC5521 ports | 0 | - |
| UPS / pass-through | Yes (0 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 | 2,400 W | 3,700 W |
| Solar input voltage | 2 inputs, 12-60V, 20A each | 120-450V, 2500W (HV) + 12-55V, 1200W (LV) |
| Car charging | - | 200 W |
| Build | ||
| Weight | 83.8 lb (38 kg) | 154.3 lb (70 kg) |
| Dimensions | 20.67 x 12.87 x 12.6 in | 26.4 x 17.7 x 16.1 in |
| App | Wi-Fi + Bluetooth | FOSSiBOT app |
| Warranty | 5 years | 5 years |