Aferiy P040 (Nomad400) vs Dabbsson 300E
What is the difference?
The Aferiy P040 (Nomad400) has 400 W of power, 800 W peak, a 256 Wh battery. The Dabbsson 300E has 300 W of power, a 298 Wh battery.
Both use LiFePO4 batteries.
The Aferiy P040 (Nomad400) weighs 9 lb, the Dabbsson 300E weighs 9 lb. The Aferiy P040 (Nomad400) is easier to carry.
The Aferiy P040 (Nomad400) has a 7-year warranty, the Dabbsson 300E has a 3-year warranty.
Specs side by side
| Aferiy P040 (Nomad400) | Dabbsson 300E | |
|---|---|---|
| Capacity (Wh) | 256 | 298 |
| Continuous (W) | 400 | 300 |
| Peak (W) | 800 | — |
| Solar input (W) | 120 | — |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycles | — | — |
| Expandable | — | — |
| Weight (lb) | 9 | 9 |
| Warranty (yr) | 7 | 3 |
| Fridge run time | 4.8 h | 5.6 h |
| CPAP run time | 5.8 h | 6.7 h |
| Wi-Fi router run time | 16.9 h | 19.7 h |
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Specs as read from manufacturer pages on 2026-11-04 / 2026-10-31. 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, Aferiy P040 (Nomad400) or Dabbsson 300E?
The Dabbsson 300E. More capacity: 298 Wh vs 256 Wh.
Which is lighter, Aferiy P040 (Nomad400) or Dabbsson 300E?
The Aferiy P040 (Nomad400). Lighter: 9 lb vs 9 lb.
Which has the longer warranty, Aferiy P040 (Nomad400) or Dabbsson 300E?
The Aferiy P040 (Nomad400). Longer warranty: 7 years vs 3 years.
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Compare other models → · All Aferiy models · All Dabbsson models