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 typicallyÂ 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 withÂ eGo-USB chargers up to 500mA