DrivePro Body 10A lasts about three hours and a half without IR LED on and DrivePro Body 10B lasts about five hours without IR LED on.
When the infrared LED is turned on, the battery will drain faster than usual, which also affects the maximum recording time.
Users can choose to manually turn on/off the Infrared LED by upgrading the firmware to v1.4.0 or later versions using the DrivePro Body Toolbox.
DrivePro Body Toolbox: https://us.transcend-info.com/Support/Software-184/