Comparison · Batteries

Samsung INR21700-40T or Molicel INR21700-P42A

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: Samsung INR21700-40T (4070 mAh vs. 4060); Capacity at high current: Molicel INR21700-P42A (3945 mAh vs. 3819); Test current: Samsung INR21700-40T (37 A vs. 36.4).

Model	Samsung INR21700-40T2019Read review →	Molicel INR21700-P42A2019Read review →
Current, A	45	45
Capacity, mAh	4070	4060
Capacity at high current, mAh	3819	3945
Test current, A	37	36.4
Review conclusion	Recommended	With reservations

Only in one review: Energy 14.86 Wh (Molicel INR21700-P42A); Resistance 9.5 mΩ (Molicel INR21700-P42A); Temperature rise 102 °C (Molicel INR21700-P42A).

Samsung INR21700-40T: It handled high currents well: about 95°C at 30 A and around 100°C in the test reaching 37 A.

Molicel INR21700-P42A: It performed well and slightly beat the Samsung INR21700-40T, but the author considers it too expensive.

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.