What are the precautions for using car batteries?
3 Answers
Precautions for using car batteries are as follows: 1. Keep it clean: Always keep the battery clean and dry, and ensure the vent holes are unobstructed. When oxides appear on the plates or clamps, wipe them clean and apply a small amount of grease to prevent corrosion. 2. Avoid continuous use of the starter: Each use should not exceed 5 seconds, with a rest of 10-15 seconds between two starts. In severe winter, the battery discharge level should not exceed 25%, and in summer, it should not exceed 50%. 3. Regular charging: A battery filled with electrolyte should not be left in a state of insufficient charge for a long time and should be charged regularly, otherwise it may lead to scrapping. 4. Charging standards: When charging the battery, the voltage should not be too low or too high. Generally, the standard charging voltage for a 12V battery is within the range of (13.5~14.5)V, and for a 24V battery, it is within the range of (28~29.9)V.
When using a car battery, I pay special attention to a few points during daily driving. Never let the battery remain undercharged for long periods—for example, driving only short distances for a few minutes each day won’t fully charge it, which can lead to premature failure. If the car is parked for over a week, I disconnect the negative terminal or use a charger to top it off, preventing self-discharge. Weather-wise, I warm up the engine before cold starts in winter and avoid parking under direct sunlight in summer, as extreme temperatures accelerate aging. When washing the car, I avoid spraying water directly onto the battery box to prevent short circuits or leakage. Regularly, I check the terminals for white powdery corrosion, gently cleaning them with a damp cloth and baking soda to ensure a solid connection. These simple habits can extend the battery’s life by 2–3 years, saving the hassle of roadside breakdowns and tow trucks. Don’t forget to test the voltage every six months—if it drops below 12.5 volts, it’s time to be cautious.
I find battery maintenance particularly crucial for family vehicles. When our family keeps a car in standby, I check the battery's exterior weekly for any deformities or cracks, which could indicate internal damage and pose safety risks. Cleaning the terminals is essential; I use a toothbrush and soapy water to remove rust, but avoid pouring excessive water. When children or pets are near the garage, I remind them not to touch the battery, as acid leaks can be dangerous. Charging should only be done in a cold state with slow charging, as fast charging shortens the battery's lifespan. For long-term parking, fully charge the battery and disconnect the cables to minimize power drain. Additionally, avoid using high-power audio systems or air conditioning for too long with the engine off, as excessive load can quickly deplete the battery. These details can ensure stable battery operation for five to six years, providing safety and peace of mind.
