How Long Is the Warranty for a New Car Battery?

[McManuel]

New car batteries typically come with a one-year warranty. The functions of a car battery include: 1. Providing a strong starting current to the starter when starting the engine; 2. Assisting the generator in supplying power to electrical equipment when the generator is overloaded; 3. Supplying power to electrical equipment when the engine is idling; 4. Protecting the car's electrical appliances; 5. Converting part of the electrical energy into chemical energy for storage when the generator's terminal voltage is higher than the electromotive force of the lead-acid battery. Battery maintenance methods include: 1. Avoid overusing the battery; 2. Regularly clean the positive and negative terminals of the battery; 3. Periodically check the vent holes on the cover of non-maintenance-free batteries to prevent clogging; 4. Avoid low battery water levels.