Comparison · Batteries

Samsung INR18650-25S or Vapcell K25 18650 2500mah 20A

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 K25 18650 2500mah 20A (2550 mAh vs. 2507); Temperature rise: Vapcell K25 18650 2500mah 20A (100 °C vs. 102).

Model	Samsung INR18650-25S2020Read review →	Vapcell K25 18650 2500mah 20A2020Read review →
Current, A	25	20
Capacity, mAh	2507	2550
Temperature rise, °C	102	100
Review conclusion	Recommended	Recommended

Only in one review: Voltage 3.6 V (Vapcell K25 18650 2500mah 20A); Test current 25 A (Vapcell K25 18650 2500mah 20A); Price 9.98 $ (Vapcell K25 18650 2500mah 20A).

Samsung INR18650-25S: The 25S performed better than the 25R at 15–20 A and can handle higher currents, though voltage sags at 30 A and above.

Vapcell K25 18650 2500mah 20A: Capacity matches the claim and it works well up to 25 A, but capacity is only 2500 mAh.

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.