Action camera with removable battery

Removable battery

— the proprietary battery, not related to standard sizes like AA. The main advantage of this option is that the battery comes with the camera, so you don't have to spend time and money searching for the appropriate one. In terms of specs, proprietary batteries can significantly exceed primary batteries. However, when discharging, the only option is usually recharging, and it takes quite a long time and requires an external power supply. At the same time, removable batteries have several useful features: the battery can be charged with an external charger, and another battery of the same type can be installed in the camera during charging.