Comparison · Batteries

Vapcell T42 or LiitoKala Lii-40A 21700 4000mAh

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: Vapcell T42 (4100 mAh vs. 4074); Test current: Vapcell T42 (35 A vs. 30).

Model	Vapcell T422022Read review →	LiitoKala Lii-40A 21700 4000mAh2018Read review →
Voltage, V	3.6	3.7
Current, A	35	40
Capacity, mAh	4100	4074
Test current, A	35	30
Review conclusion	Recommended	With reservations

Only in one review: Capacity at high current 4041 mAh (LiitoKala Lii-40A 21700 4000mAh); Energy 14.972 Wh (LiitoKala Lii-40A 21700 4000mAh); Temperature rise 90 °C (LiitoKala Lii-40A 21700 4000mAh).

Vapcell T42: They delivered good current and stayed cool; the author compares them favorably with Molicel P42A.

LiitoKala Lii-40A 21700 4000mAh: Capacity meets the rating, but the claimed continuous discharge current is questionable.

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.