Comparison · Batteries

EVE 21700 40P 4Ah 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: LiitoKala Lii-40A 21700 4000mAh (4074 mAh vs. 4000); Test current: EVE 21700 40P 4Ah (35 A vs. 30).

Model	EVE 21700 40P 4Ah2026Read review →	LiitoKala Lii-40A 21700 4000mAh2018Read review →
Current, A	50	40
Capacity, mAh	4000	4074
Test current, A	35	30
Review conclusion	Recommended	With reservations

Only in one review: Voltage 3.7 V (LiitoKala Lii-40A 21700 4000mAh); 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).

EVE 21700 40P 4Ah: The cells delivered their rated capacity but exceeded 100°C at 35 A; the author considers 25–30 A a safer continuous current.

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.