FST 21700 4500mAh (Pink)
Rated capacity: 4500mAh
Minimum capacity: 4400mAh
Nominal voltage: 3.6V
Standard charge current: 2250mA
Maximum charge current: 4400mA
Charge cut-off current: 90mA
Standard discharge current: 2250mA
Maximum discharge current: 13.5A (3C) below 35°C ambient
Discharge cut-off voltage: 2.75V
Cycle life: 600 cycles to 80%
This is a high capacity 21700 cell.
The two cells match nicely and it is obvious they are high capacity, not high current (The do already get hot at 15A).
The two batteries match nicely and have the rated capacity. The performance of the battery is good.
Notes and links
The batteries was supplied by Vapcell for review.
How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries