How to Fix a Car Battery That Won't Hold a Charge?
2 Answers
There are several methods to fix a car battery that won't hold a charge: 1. Use a battery repair device to perform high-resistance repair, raising the voltage above 11V to allow charging; 2. If the battery voltage is below 10V and cannot be improved after charging and repair, the battery must be replaced; 3. If the battery electrodes are sulfated, the battery also needs to be replaced. A car battery, also known as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. Car batteries are categorized into conventional batteries, dry-charged batteries, and maintenance-free batteries. The normal service life of a car battery ranges from 1 to 8 years, depending largely on the condition of the vehicle.
I also encountered a battery that couldn't hold a charge when I drove an old car before, which was quite annoying. At that time, I checked it myself and found the cause was either battery aging or white corrosion on the terminals. The repair steps: first, turn off the engine and park to ensure safety, then clean the rust on the terminal connections with baking soda water, making sure the connections are tight. If the electrolyte level is low, add distilled water up to the marked line, then try charging overnight. If it still doesn't work, you might need to replace the battery. Pay attention to regular maintenance, take long drives periodically to fully charge the battery, and avoid draining it by listening to music for too long with the engine off. After going through all this, the car starts much more smoothly, saving a lot of trouble.
