There are two ways of enabling the self-heating function:
A. When the battery is turned off, if the temperature is between -10℃ to 6℃ and the battery level is more than 50%, press and hold the power button for 5 seconds, then the function will be triggered.
B. Mount the battery to the drone and power on the drone. If the temperature is between -10℃ to 6℃ and the battery level is more than 50%, then the battery will self-heat automatically.