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What is the purpose of the 12V power outlet in the trunk?

1 Answers

LeGriffin

07/29/25 9:25pm

The purpose of the 12V power outlet in the trunk is to power devices such as car refrigerators, car vacuum cleaners, etc. It can also be used for charging mobile phones, dash cams, decorative lights, and more. The 12V power in the trunk comes from the car battery, so there is no need to worry about power loss when the engine is turned off. The 12V voltage in the car's power system supplies all electrical devices and provides convenience for owners to install additional electrical equipment. Depending on the vehicle model, the maximum current capacity of the fuse for the trunk's 12V power outlet typically comes in three variants: 5A, 10A, and 15A. It is safest to use electrical devices with a maximum power of 120W or less. If high-power devices are used, circuit overload may occur, which can range from simply blowing a fuse to causing overheating of the wiring, potentially leading to a fire. Therefore, when using the 12V power outlet for charging, owners must avoid using excessively high-power devices. Generally, the maximum power for devices that can be safely used with the trunk's 12V power outlet is 120W, calculated as voltage multiplied by current. Each car may have different specifications, which can be checked and calculated in the car manual to ensure safety.

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