Rechargeable 14500 USB Li ion battery

Capacity: 650mAh 

Normal Voltage: 4.2V

Micro USB output: 5V

It has no memory effect

Supports up to 1000 recharges

Charging methods: micro USB

Protection: Overcharge, over discharge, short-circuit protection.

Size: 51.03*14.20mm (Length x Diameter)

Packing: each battery in blister.