Samsung INR21700-40T 4000mAh (Cyan)3 weeks, 4 days ago | 0 Replies
Rated discharge capacity: 3900mAh
Standard discharge capacity: 4000mAh
Nominal voltage: 3.6V
Standard charging: CCCV, 2A, 4.20V, 200mA cutoff
Rated charge: CCCV, 6A, 4.20V, 100mA cutoff
To the maximum. Continuous discharge: 35A with temperature cut off.
To the maximum. Continuous discharge: 45A, 80°C temperature cut off.
Discharge cutoff voltage: 2.5V
Cycle life: 250 cycles to 60% for 6A charge and 35A discharge.
This is a high current with good capacity in the new 21700 format.
The two cells tracks very well and capacity drops slowly with higher current. I had a slight problem with the B cell, my connection in the battery holder was not good enough and it got hot at 30A.
It is a very good high current and capacity cell and looks to be one of the best at the current time in this size.
get more info