The Efest K2 Slim charger is a no frills lightweight micro-USB powered li-ion charger. The K2 charges two batteries at up to 1A each depending on the power supplied to the charger. A white LED indicates the battery is charging while a blue LED indicates a finished charge.
DC Input: 5V 2A
Output current: 1A x 2
Auto cut-off voltage: 4.2V+-0.05V
Auto recharge voltage: 4.10+-0.1V
Micro USB Cable
-Never leave batteries unattended while charging.
-Always make sure batteries meet the specifications of the charger before use.