No, the AirMini does not have a battery. It must be plugged into power to operate.
The AirMini DC/DC converter 65W allows you to operate your AirMini from a cigarette lighter socket (12V or 24V DC power source) in a car, boat or other vehicle equipped with a suitable battery.
Speak with your CPAP supplies store to find the best portable power option for your travels with AirMini.