A-iPower GS350i vs Aferiy P040 (Nomad400)

What is the difference?

The A-iPower GS350i has 350 W of power, 700 W peak, a 336.7 Wh battery. The Aferiy P040 (Nomad400) has 400 W of power, 800 W peak, a 256 Wh battery.

The A-iPower GS350i uses a lithium-ion (NMC) battery, the Aferiy P040 (Nomad400) a LiFePO4 one. LiFePO4 generally lasts more charge cycles, so the Aferiy P040 (Nomad400) should last longer.

The A-iPower GS350i has a 2-year warranty, the Aferiy P040 (Nomad400) has a 7-year warranty.

The A-iPower GS350i charges from a wall outlet to 100 % in 8 h, the Aferiy P040 (Nomad400) charges from a wall outlet to 100 % in 72 min. The Aferiy P040 (Nomad400) is ready again sooner.

Both have 120 V AC output.

Specs side by side

	A-iPower GS350i	Aferiy P040 (Nomad400)
Capacity (Wh)	336.7	256
Continuous (W)	350	400
Peak (W)	700	800
Solar input (W)	—	120
Chemistry	NMC	LiFePO4
Cycles	500	—
Expandable	—	—
Weight (lb)	—	9
Warranty (yr)	2	7
Fridge run time	6.3 h	4.8 h
CPAP run time	7.6 h	5.8 h
Wi-Fi router run time	22.2 h	16.9 h
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Specs as read from manufacturer pages on 2026-11-04 / 2026-11-04. 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, A-iPower GS350i or Aferiy P040 (Nomad400)?

The A-iPower GS350i. More capacity: 336.7 Wh vs 256 Wh.

Which has the longer warranty, A-iPower GS350i or Aferiy P040 (Nomad400)?

The Aferiy P040 (Nomad400). Longer warranty: 7 years vs 2 years.

More comparisons

Compare other models → · All A-iPower models · All Aferiy models