Molicel INR21700-P42A or Samsung INR21700-40T

In brief: Based on review measurements: Capacity: Samsung INR21700-40T (4200 mAh vs. 4060); Test current: Samsung INR21700-40T (37 A vs. 36).

Model	Molicel INR21700-P42A2019Read review →	Samsung INR21700-40T2019Read review →
Current, A	45	35
Capacity, mAh	4060	4200
Test current, A	36	37
Review conclusion	Recommended	Recommended

Only in one review: Capacity at high current 3900 mAh (Molicel INR21700-P42A); Temperature rise 100 °C (Samsung INR21700-40T).

Molicel INR21700-P42A: It delivered 4060 mAh at 0.2C; above 10 A the Samsung falls noticeably behind.

Samsung INR21700-40T: The cell sustains 30–35 A, handles 40 A briefly, and is well suited to power-tool packs.

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.

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