Specifications: SKU: GO218B, Long Duration: Avoid replacing battery frequently while doing normal shooting activities. With 2300mAh battery capacity, the external battery can work up to 120 minutes, which means your GoPro 5 and 6 Black can work about 3.5 hours continuously without replacing the battery. Multiple Protection: The protective frame is used to protect the camera and side power from shock, scratches or accidents. Also, it could conveniently connect to other GoPro accessories by screw and bracket. Widely Use: This side power is essentially a high-capacity power bank, which means your GoPro camera can work directly even though there is no battery in it. Compared with other batteries for GoPro, extended battery is not only suitable for the current GoPro Hero 5 and Hero 6 Black version but also for the future upgrade version. Smartphone Charging: The External Battery is not only a charger for GoPro Cameras but also a power bank for your phone which has type-c interface, such as Samsung Galaxy S8, S8 Plus, S7 Edge, Huawei P9, LG G5, etc. Certified Safe: Built-in PCM intelligent battery protection circuit ensures complete protection for you and your devices. Capacity: 2300 mA Last time: about 120 minutes Charging interface: type-c Input: 5v/2A Output: 5v/2.1A Power size: 5.7 x 4.5 x 2.4cm Case size: 12.5 x 4.6 x 9.5cm Power weight: 60g Case weight: 130g Packing size: 25 x 14.5 x 6.5cm