Does a Dead Car Battery Need to Be Replaced?

[ArielRose]

If a car battery is dead, it does not necessarily need to be replaced. The key factor is whether the battery is completely dead and cannot be restored. The criteria for determining a dead battery and daily maintenance methods are as follows: Criteria for a Dead Battery: If the battery's discharge capacity falls below approximately 60% of its rated capacity and cannot be restored after repair, it should be discarded. Additionally, if the battery overheats severely or the casing deforms during charging, it also needs to be replaced. Daily Maintenance Methods for Batteries: Before turning off the vehicle, ensure all electrical devices are switched off. Avoid leaving the vehicle parked for extended periods. Start the vehicle at least once a week to maintain a healthy battery voltage.