There are several ways to 'self-help' when the battery suddenly runs out of power.

But in case the battery suddenly runs out of power, there are several ways to 'self-help'. 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 this will cause certain damage to the engine and clutch. Automatic transmission vehicles should especially avoid using this Method starts.　　Second, in order to avoid the battery cannot be charged when the battery 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 with 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. 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.　　 Finally, experts reminded that the battery life is generally 2 to 3 years. After this period, the car should pay special attention to the maintenance of the battery in normal times. If necessary, replace it in time to avoid danger.