Allpowers P1800 vs Firman Zero E (E201001)
What is the difference?
The Allpowers P1800 has 1.8 kW of power, 3.6 kW peak, a 1.02 kWh battery. The Firman Zero E (E201001) has 2 kW of power, 4 kW peak, a 1.04 kWh battery.
The Allpowers P1800 takes up to 650 W from solar, the Firman Zero E (E201001) takes up to 400 W from solar. The Allpowers P1800 charges faster from panels.
The Firman Zero E (E201001) can add extra batteries.
Specs side by side
| Allpowers P1800 | Firman Zero E (E201001) | |
|---|---|---|
| Capacity (Wh) | 1024 | 1040 |
| Continuous (W) | 1800 | 2000 |
| Peak (W) | 3600 | 4000 |
| Solar input (W) | 650 | 400 |
| Chemistry | LiFePO4 | — |
| Cycles | 3000 | — |
| Expandable | — | yes |
| Weight (lb) | — | — |
| Warranty (yr) | — | — |
| Fridge run time | 19.3 h | 19.6 h |
| CPAP run time | 23.2 h | 23.5 h |
| Wi-Fi router run time | 67.6 h | 68.6 h |
| Check on Amazon → | Check on Amazon → |
Specs as read from manufacturer pages on 2026-11-03 / 2026-10-30. 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 charges faster from solar, Allpowers P1800 or Firman Zero E (E201001)?
The Allpowers P1800. Faster solar charging: 650 W input vs 400 W input.
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Compare other models → · All Allpowers models · All Firman models