Feng Yu cigarette lighter automatically cuts off the power supply.

If the contact is poor, cut off the power supply.

Usually, after the engine is turned off, the power supply of the cigarette lighter will be cut off; Now someone charges the mobile phone through the power supply of the cigarette lighter, or connects the driving recorder; If you turn off the engine, there is still electricity; Then, if the driving recorder is not turned off, people will lock the car and start the car the next day, the battery will be dead and the car will not start. It is understood that most vehicles will lose power after the engine is turned off.