Comparison · Batteries

Milwaukee M18 1.5 Ah battery or UltraFire TR17670 1800mAh 3.7V

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: Milwaukee M18 1.5 Ah battery (1407 mAh vs. 1320).

Model	Milwaukee M18 1.5 Ah battery2016Read review →	UltraFire TR17670 1800mAh 3.7V2014Read review →
Capacity, mAh	1407	1320
Weight, g	427	36
Review conclusion	With reservations	Not recommended

Only in one review: Voltage 3.7 V (UltraFire TR17670 1800mAh 3.7V); Test current 1.8 A (UltraFire TR17670 1800mAh 3.7V); Price 9 $ (UltraFire TR17670 1800mAh 3.7V).

Milwaukee M18 1.5 Ah battery: The battery measured 1407 mAh, slightly below the expected 1450–1500 mAh.

UltraFire TR17670 1800mAh 3.7V: Capacity was below the rating and the promised protection circuit was absent; the author would not recommend buying them.

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.