How to 'self-help' when the battery suddenly runs out?

I believe that friends who drive often will occasionally encounter the situation that the car battery suddenly runs out. The maintenance staff of the 4S shop said that the best way to prevent the battery from suddenly running out is to pay more attention to the distress signal sent by your car. This signal has the following manifestations: one is that the starter does not rotate or rotates weakly, so that the starter cannot be started; the second is that the headlights are darker than usual; the third is that the volume of the horn is low or even does not sound. When the above problems occur, the car owner must check whether it is a battery problem. In order to minimize the power consumption of the battery, the experts of the 4S shop put forward two suggestions: First, prevent the lights from being turned on for a long time or listening to the broadcast when the engine is turned off; second, even if the engine is running, if the parking time is long, it should be Turn off the power of unnecessary electrical equipment (lights inside and outside the car, audio, navigation, etc.). Develop good car use habits, you can prevent unnecessary dilemmas. But in case the battery suddenly runs out of power, there are several ways to save yourself. First, the cart starting is the most familiar and effective emergency starting method, but it is a last resort and cannot be used frequently, because it will damage the engine and clutch to a certain extent. Automatic transmission vehicles should especially prevent the use of this Method starts. Second, in order to prevent the battery from being unable to charge when it is dead, the car owner should prepare a jumper cable in the car, which can be bought in general auto parts stores. However, when connecting jumper cables, you must not make a mistake in the order of connecting jumper cables. First connect the positive terminal of the dead battery to the positive terminal of the rescue car battery, and then connect the negative terminal of the rescue car battery to the metal part in the engine room of the dead car (ground wire). After the jumper cable is connected, the engine of the rescue vehicle can be started, and the engine speed can be slightly increased. After about 5 minutes, the dead battery can be charged in an emergency. After charging is complete, remove the jumper cable in the reverse order of connecting the jumper cable. The most reliable way is to contact the rescue vehicle in time, connect the jumper cable, and temporarily charge the rescue vehicle to start the engine. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the differences between lithium battery and lithium polymer battery?