What Are the Effects of a Dead Car Battery on the Vehicle?
2 Answers
The most immediate impact of a dead car battery is the inability to start the vehicle, and the car's anti-theft system will also fail to function properly. Relevant information is as follows: 1. Normal engine start requires gasoline, air, and the starter motor to turn the engine. If the battery is dead, there will be no electricity in the high-voltage coil, preventing the spark plugs from igniting properly. When the battery is dead, the fuel pump also cannot operate normally, thus failing to ensure fuel supply. 2. When the car is not used for an extended period, it is advisable to disconnect the negative terminal of the battery to prevent the battery from being completely drained. If the battery remains in a depleted state for a long time, its service life will be significantly reduced.
My buddy’s car battery suddenly died the other day, and it was a nightmare. When trying to start the car, all the dashboard lights went out, and the infotainment screen just went black. The onboard camera failed, and the electronic parking brake was completely locked—couldn’t even release it. Had to use the mechanical key just to get the door open. Ended up calling emergency jump-start service, and the technician said such a deep discharge is especially harmful to cars, particularly those with auto start-stop systems. The battery has a data module, and deep discharge can cause permanent damage. Now I’ve made it a habit to test the voltage every six months and replace the battery immediately if its health drops below 60%. After all, replacing a battery is 200 times better than calling a tow truck on the roadside.
