The Mavic Car Charger is used to charge the Intelligent Flight Battery through a car's cigarette lighter port. It comes with low-voltage protection to ensure enough starting battery voltage for the car. Overheating protection will automatically cut off charging if your cigarette lighter port exceeds a certain temperature. Specifications: Product Model: C3S78 Operating Temperature: 5° to 40° C Input Voltage: 12.3-16 V (Sedan); 25-30 V (Coach) DC Output: 13.05 V; 6 A; 78 W Charge Time: 54 min