Comparison · Batteries

Samsung INR 18650-20S or TrustFire 18650 2400mAh

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: TrustFire 18650 2400mAh (2209 mAh vs. 2021); Capacity at high current: TrustFire 18650 2400mAh (2209 mAh vs. 1990); Test current: Samsung INR 18650-20S (30 A vs. 2.399).

Model	Samsung INR 18650-20S2019Read review →	TrustFire 18650 2400mAh2014Read review →
Capacity, mAh	2021	2209
Capacity at high current, mAh	1990	2209
Test current, A	30	2.399
Review conclusion	Recommended	Recommended

Only in one review: Energy 6.815 Wh (Samsung INR 18650-20S); Resistance 7 mΩ (Samsung INR 18650-20S); Temperature rise 84 °C (Samsung INR 18650-20S); Weight 47 g (TrustFire 18650 2400mAh).

Samsung INR 18650-20S: The high-current cell delivered well with modest heating, and the author unequivocally recommends it.

TrustFire 18650 2400mAh: The two cells delivered 92–93.5% of rated capacity at a 1C discharge; the author called the result very good.

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.