Insert USB plug into the receptacle end of the USB cable.
Insert plug end of USB cable into USB port of a plugged in or fully battery charged computer.
You may also use the included USB-to-Micro USB adapter to charge the battery using a
Micro USB cable and charger.
Battery Charge Indicator light will change from red to green when fully charged.
Charge the battery for 90 minutes to achieve full capacity.
Detach all connections when battery is sufficiently charged. Slide tool USB plug back into tool before tool use.