Comparison · Batteries

Samsung INR21700-50G or Basen BS26003

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 INR21700-50G (4900 mAh vs. 4800); Capacity at high current: Samsung INR21700-50G (4800 mAh vs. 4310).

Model	Samsung INR21700-50G2021Read review →	Basen BS260032020Read review →
Capacity, mAh	4900	4800
Capacity at high current, mAh	4800	4310
Review conclusion	Recommended	With reservations

Only in one review: Current 14.7 A (Samsung INR21700-50G); Test current 30 A (Basen BS26003); Energy 18 Wh (Samsung INR21700-50G); Temperature rise 97 °C (Basen BS26003); Weight 90 g (Basen BS26003); Price 6.39 $ (Basen BS26003).

Samsung INR21700-50G: Cells delivered over 4900 mAh at 0.2C and over 4800 mAh at 3C, matching their stated specifications.

Basen BS26003: Decent general-purpose cells, but not high-current ones; high loads cause strain and substantial voltage sag.

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.