Should the car battery be replaced if it runs out of power?

[VanChase]

Whether the car battery needs to be replaced when it runs out of power depends on whether the battery can still be used. Judgment method: You can remove the battery and charge it to see if it can still be used. If it still doesn't work after charging, it means the battery's service life has expired or it is damaged, and it needs to be replaced. The following are the methods to deal with a dead car battery: 1. If the battery is dead and the car won't start, you can use the jump-start method. 2. First, park the two cars facing each other (as close as possible); 3. Then turn off the rescue vehicle to avoid excessive current burning out the battery cables, and turn off all electrical switches of the rescued vehicle; 4. Open the engine compartments of both cars (some cars have the battery in the trunk, such as BMW), locate the positive and negative terminals of both batteries (red "+" is positive, black "-" is negative), and connect them accordingly.