What are the reasons for a car battery not holding charge?
1 Answers
Car battery not holding charge reasons are: 1. Incompatible rectifier; 2. Damaged generator coil; 3. Poor connection between rectifier and battery or fuse wiring; 4. Battery self-discharge due to damage; 5. Whole vehicle circuit malfunction or self-discharge after turning off ignition; 6. Prolonged vehicle inactivity causing battery discharge. Functions of car battery: 1. Provides power to starting system, ignition system and electronic fuel injection system when starting engine; 2. Powers vehicle electrical equipment when engine is off or at low idle; 3. Assists in powering electrical devices when alternator output is insufficient; 4. Absorbs voltage spikes in electrical system, protecting electronic components; 5. Stores excess electricity generated by alternator.