Efest K1 Slim Battery Charger

Li-Ion (3.6/3.7V nominal) up to 4.2V in sizes: 18490, 18500, 18650, 20700, 21700. Smaller batteries can be used with the charger, but they may not be optimal in the long run due to the high charging current of the Slim K1.

Efest Slim K1 Product Information:

1 charging slot
Charging current 1A
Status display as an animated charging bar
CC/CV charging program for Li-Ion batteries
Automatic charging stop after the charging process is complete
Reactivation of protected and deeply discharged batteries
Safe: Reverse polarity protection, overcharge protection, overload protection, short circuit protection
CE & RoHS certified.