Car Battery Protection Grades

Principle: The cooler can detect the power supply voltage (such as the car battery) to determine the battery level. The lower the voltage, the lower the battery level. When the car battery voltage reaches the "set value", the cooler stops working.

Protect the car battery: Prevent the cooler from using up the car battery, causing the car battery to fail to start.

When powering the cooler via a car, press the settings button(L/M/H) once to choose the car battery's protection grade. Press the up or down buttons to adjust.

When the car's battery voltage is lower than the set value without the battery, your cooler will stop working. When the car's battery voltage is lower than the set value, the cooler switches to its battery for power supply. Once the car battery is restored, it switches to the car battery's power source.

If you have any questions, please contact Anker Customer Support for further assistance.