Click 5 times within about 1 second to turn on or off, and simply twist the base of the battery to select your desired voltage.

Battery capacity: 1600mAh

Charging time typically 4-5 hours

Typical battery lifetime 200 charges

Voltage output can be adjusted from 3.2V-4.8V

LED will blink several times in succession when it's time to recharge

Short circuit protection

Compatible with eGo-USB chargers up to 500mA