Model: 10440-1.5V

Charge port: Micro-USB

Character: rechargeable Li-ion battery with Micro usb port

Capacity: 400mAh

Voltage: 1.5V

Charging input: 5V/0.3A

Charging time: 4 hours

Battery cycle: over 500 times

Size: 10mm diameter * 44mm length

Weight：8.5g