Does a Car Battery Need Replacement When It's Dead?

[McAlexander]

Whether a car battery needs replacement when it's dead depends on the specific situation: 1. If the battery is dead due to car discharge or leakage, replacement is not necessary; 2. If the battery is dead due to capacity reduction or damage from over-discharge, replacement is required. The reasons for a dead battery include: 1. Generator failure, preventing the battery from charging; 2. Car electronics not being turned off; 3. Short circuits in the car's wiring. Methods for battery maintenance include: 1. Starting the car regularly to charge the battery; 2. Adding distilled water or special replenishing fluid when the electrolyte is low; 3. Frequently checking if the small holes on the battery cover are ventilated; 4. Checking for oxidation on the battery's positive and negative terminals; 5. Inspecting all parts of the circuit for aging or short circuits; 6. Turning off all electronic devices when leaving the car.