QNAS 40160 25Ah 3.2V LFP or 33140 15Ah LiFePO4 cell

In brief: These devices have no measurements in common that would show one is better than the other. Compare the review conclusions below.

Model	QNAS 40160 25Ah 3.2V LFP2026Read review →	33140 15Ah LiFePO4 cell2024Read review →
Voltage, V	3.2	3.2
Test current, A	40	40
Review conclusion	Recommended	With reservations

Only in one review: Current 30 A (33140 15Ah LiFePO4 cell); Resistance 2.25 mΩ (33140 15Ah LiFePO4 cell); Weight 270 g (33140 15Ah LiFePO4 cell).

QNAS 40160 25Ah 3.2V LFP: Good cells with honest capacity, good thermal behavior, and fast charging.

33140 15Ah LiFePO4 cell: Capacity is close to the rating, but its behavior at 40 A puzzled the author, who recommends staying at 0.5–1C.

Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.

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