A large home-backup station for buyers who want lots of capacity and solar input at a low price per watt-hour, and don’t need to move it often.
Amazon $1,139 FOSSiBOT $1,219The FOSSiBOT F3600 Pro is the better portable power station overall, rated 4.0 to 3.2. The FOSSiBOT F3600 Pro leads on value, battery life and portability. The Zendure SuperBase V4600 wins on charging speed and solar input. The FOSSiBOT F3600 Pro costs $3,160 less ($1,139 vs $4,299).
For home backup buyers who want 240V output and room to grow past 20 kWh from one wheeled unit.
Zendure $5,998 HVACDirect $4,299Prices 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 F3600 Pro for value ($0.30 per rated Wh vs $0.93 per rated Wh), battery life (LiFePO4, 6,500 cycles, 5-year warranty vs LiFePO4, 6,000 cycles) and portability (91 Wh per kg (92.6 lb (42 kg)) vs 84 Wh per kg (121 lb (55 kg))).
- Choose the Zendure SuperBase V4600 for charging speed (0-100% on AC in 2 h vs 0-100% on AC in 3 h) and solar input (3,000 W max solar input vs 2,000 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 F3600 Pro | Zendure SuperBase V4600 |
|---|---|---|
| Overall rating | 4.0/5 | 3.2/5 |
| Value 25% | 100 $0.30 per rated Wh | 3 $0.93 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 | 85 LiFePO4, 6,000 cycles |
| AC output 15% | 37 3,600 W continuous AC | 42 3,800 W continuous AC |
| Charging speed 10% | 32 0-100% on AC in 3 h | 63 0-100% on AC in 2 h |
| Portability 10% | 84 91 Wh per kg (92.6 lb (42 kg)) | 71 84 Wh per kg (121 lb (55 kg)) |
| Solar input 5% | 44 2,000 W max solar input | 59 3,000 W max solar input |
| Features 5% | 100 UPS (10 ms), expandable, 100 W USB-C, app | 100 UPS (13 ms), expandable, 100 W USB-C, app |
Specifications
| FOSSiBOT F3600 Pro | Zendure SuperBase V4600 | |
|---|---|---|
| Battery | ||
| Rated capacity | 3,840 Wh | 4,608 Wh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,500 to 80% per product description and Amazon; US spec table says to 50% | 6,000 6,000+ cycles (manufacturer; end-of-life capacity not stated) |
| Expandable | Yes, up to 11,520 Wh | Yes, up to 23,040 Wh |
| Output | ||
| AC output | 3,600 W (7,200 W surge) | 3,800 W |
| Boost mode (resistive loads) | - | 5,000 W |
| AC outlets | 5 total | 6 total |
| 120V 20A outlets (NEMA 5-20R) | 4 | 4 |
| RV 30A outlet (TT-30R) | 1 | 1 |
| 240V 20A outlet (NEMA 6-20R) | - | 1 |
| AC waveform | Pure sine wave | - |
| USB-C ports | 4 (up to 100 W each) | 4 (up to 100 W each) |
| USB-A ports | 2 | 2 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 2 | 2 |
| UPS / pass-through | Yes (10 ms switchover) | Yes (13 ms switchover) |
| Charging | ||
| AC charging | 1,500 W | 3,600 W |
| Full AC charge time | 3 h (Manufacturer: about 3 hours on AC; 1 h 50 min with AC + solar (3500W)) | 2 h (About 2 h at 3,600W from a 240V outlet; 1,800W max from a 120V outlet. Up to 4,608W combined with solar) |
| Max solar input | 2,000 W | 3,000 W |
| Solar input voltage | 12-160V, 20A | 12-150V, 25A (1 MPPT, XT90) |
| Car charging | 120 W | 120 W |
| Build | ||
| Weight | 92.6 lb (42 kg) | 121 lb (55 kg) |
| Dimensions | 24.0 x 12.6 x 18.7 in | 28.7 x 13.6 x 17.4 in |
| App | FOSSiBOT app | Zendure app (Wi-Fi, Bluetooth) |
| Warranty | 5 years | - |
| Released | 2024-07 | 2022-09 |
