Comparison · Batteries

Westinghouse WA640N-F1 6V 4Ah or Samsung INR18650-25R

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: Samsung INR18650-25R (2500 mAh vs. 1536).

Model	Westinghouse WA640N-F1 6V 4Ah2023Read review →	Samsung INR18650-25R2015Read review →
Capacity at high current, mAh	1536	2500
Weight, g	660	44
Review conclusion	With reservations	Recommended

Only in one review: Test current 2 A (Westinghouse WA640N-F1 6V 4Ah); Energy 14.9 Wh (Westinghouse WA640N-F1 6V 4Ah); Resistance 20 mΩ (Westinghouse WA640N-F1 6V 4Ah).

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

Samsung INR18650-25R: The cells showed good consistency and about 2500 mAh when discharged at 14 A.

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.