Szie:1*4.4CM(the same as normal 3A battery)
Capacity:550mAh,
Voltage:1.2V
Charger time:4-5hours
Shell material:stainless steel
Cover material:ABS
Remark: When charge the lamp is often bright, imitates the lamp automatic extinguishment (to have intelligence to sentence full function) the discharging current: Maximum current >4350mAh (recommendation value 100mAh) may use 500 times (approximately 3 years) repeatedly
USB rechargeable battery