Comparison · Batteries

EVE 40135 20Ah LiFePO4 or Westinghouse WA640N-F1 6V 4Ah

Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.

In brief: Based on review measurements: Capacity at high current: EVE 40135 20Ah LiFePO4 (18190 mAh vs. 1536); Test current: EVE 40135 20Ah LiFePO4 (40 A vs. 2); Energy: EVE 40135 20Ah LiFePO4 (55.4 Wh vs. 14.9).

Model	EVE 40135 20Ah LiFePO42023Read review →	Westinghouse WA640N-F1 6V 4Ah2023Read review →
Capacity at high current, mAh	18190	1536
Test current, A	40	2
Energy, Wh	55.4	14.9
Weight, g	357	660
Review conclusion	With reservations	With reservations

Only in one review: Resistance 20 mΩ (Westinghouse WA640N-F1 6V 4Ah).

EVE 40135 20Ah LiFePO4: Capacity matches the rating, but there is internal movement and one cell delivered less capacity at 2C.

Westinghouse WA640N-F1 6V 4Ah: The battery tested below its rated 4 Ah capacity; the author suspects this unit may be defective.

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.