What Does It Mean When the Battery Warning Light Comes On in a Car?
1 Answers
The illumination of the battery warning light indicates that the generator voltage is lower than the battery voltage, resulting in a power supply circuit fault. At this time, the vehicle is running on battery power, and the generator should be inspected and repaired at a repair shop as soon as possible. Below are specific details about car batteries: 1. Classification of batteries: Car batteries are divided into maintenance-free batteries and conventional batteries (lead-acid batteries). Most current vehicle models use maintenance-free batteries, while many Japanese cars use conventional batteries. Conventional batteries have electrodes made of lead and lead oxide, with an electrolyte of sulfuric acid solution. Their lifespan is generally around 2 years, so replacing them every two years is most reasonable. 2. Regular maintenance: To extend the battery's lifespan, regular maintenance and good driving habits are necessary. When the electrolyte is insufficient, the battery may not hold a charge, requiring timely refilling. After turning off the car, ensure all lights are off to avoid excessive battery drain. If the car is parked for an extended period, it is recommended to disconnect the battery's negative terminal to prevent discharge. It is also advisable to start the car once a week, allowing the battery to charge at idle speed via the internal generator, ensuring sufficient power for the next start.
