Keep your favourite gadgets working at full power with this handy lithium ION battery charger that will keep multiple battery sizes running, allowing you to charge rechargeable batteries time & again. Supplied with a micro USB (Universal Serial Bus) charging cable, this practical battery charger automatically stops charging when your battery is full & has advanced built in protections to protect from over voltage, over charging & short circuit as well as detecting bad batteries & reverse polarity. With intelligent charging speed optimisation, this charger is ideal to be used with rechargeable batteries of various sizes from 10440 to 26650 (and comes with a 18650 rechargeable battery included), making it easy to make more environmentally conscious choices. GP lithium ION battery charger Supplied with a 18650 rechargeable battery Suitable for use for multiple battery sizes ranging from 10440 to 26650 Intelligent charging speed optimisation Advanced built in protections; protects from over-voltage, over-charging & short circuit Detects bad batteries & reverse polarity Automatic cut off; stops charging when your battery is full Micro USB (Universal Serial Bus) charging cable included Input: DC 5V 1 A Output: DC 4.2V 0.5A, DC 4.2V 1A