Comparison · Batteries

LTO 18650 1500mAh cell, first unit 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: LTO 18650 1500mAh cell, first unit (1400 mAh vs. 1320); Test current: LTO 18650 1500mAh cell, first unit (7.5 A vs. 1.8); Price: LTO 18650 1500mAh cell, first unit (2.4 $ vs. 9).

Model	LTO 18650 1500mAh cell, first unit2021Read review →	UltraFire TR17670 1800mAh 3.7V2014Read review →
Voltage, V	2.4	3.7
Capacity, mAh	1400	1320
Test current, A	7.5	1.8
Price, $	2.4	9
Review conclusion	Not recommended	Not recommended

Only in one review: Current 15 A (LTO 18650 1500mAh cell, first unit); Capacity at high current 950 mAh (LTO 18650 1500mAh cell, first unit); Resistance 20 mΩ (LTO 18650 1500mAh cell, first unit); Weight 36 g (UltraFire TR17670 1800mAh 3.7V).

LTO 18650 1500mAh cell, first unit: The first cell meets its rated capacity but has higher resistance and performs poorly at high currents.

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.