The expected duration is 2 to 2.5 hours of battery life for the cameras with the removable battery on a full charge.
We recommend carrying fully charged spare batteries if you expect to have extended filming sessions.
You can provide continuous power to the camera if you need to record for longer than that by using a "charge only" USB cable. This type of USB cable is included with the Contour brand charging kit. This will provide continuous power to the camera while also charging the internal battery.
Please note that the camera is designed always have a battery inserted, even if the camera is connected to external power.
The official Contour charging kit can be found at our online store here: