INSMA DC 12V 8000mAh Backup Rechargeable Li-ion Battery for CCTV Camera US-Plug Circulation charge and discharge more than 500 times Circulation charge and discharge more than 500 times Built - in ON/OFF switch to save power usage. Large mah value Use this battery to power our powerful wireless transmitter, CCTV camera and so on. Suitable for your need. With working indicator.Specially designed for the system devices which use 12V power. Built-in ON/OFF DC 12V 8000mAh Super Rechargeable Protable Lithium-ion Battery This Rechargeable battery is a 12V 8000mah Li-ion Battery and it is specially designed for powering the system device which use12V DC power.