Allpowers R4000 vs Fossibot F3600 Pro
What is the difference?
The Allpowers R4000 has 4 kW of power, 6 kW peak, a 3.46 kWh battery. The Fossibot F3600 Pro has 3.6 kW of power, 7.2 kW peak, a 3.84 kWh battery.
Both use LiFePO4 batteries.
Both take up to 2000 W from solar.
Both have a 5-year warranty.
Both have 120 V AC output.
The Fossibot F3600 Pro can add extra batteries.
Specs side by side
| Allpowers R4000 | Fossibot F3600 Pro | |
|---|---|---|
| Capacity (Wh) | 3456 | 3840 |
| Continuous (W) | 4000 | 3600 |
| Peak (W) | 6000 | 7200 |
| Solar input (W) | 2000 | 2000 |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycles | 3500 | — |
| Expandable | — | yes |
| Weight (lb) | 99 | — |
| Warranty (yr) | 5 | 5 |
| Fridge run time | 65.2 h | 72.4 h |
| CPAP run time | 78.2 h | 86.9 h |
| Wi-Fi router run time | 228.1 h | 253.4 h |
| Check on Amazon → | Check on Amazon → |
Specs as read from manufacturer pages on 2026-11-02 / 2026-10-27. Specs one maker does not list are left out of the comparison. Run times are for that appliance alone with a typical duty cycle, after inverter and depth-of-discharge losses. Sponsored links; we may earn a commission.
Common questions
Which has more capacity, Allpowers R4000 or Fossibot F3600 Pro?
The Fossibot F3600 Pro. More capacity: 3840 Wh vs 3456 Wh.
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Compare other models → · All Allpowers models · All Fossibot models