What to Do When a Car Battery Doesn't Hold Charge?

[VanPaul]

Solutions for a car battery that doesn't hold charge: 1. Add distilled water or purified water to the battery; tap water must not be used. 2. Use a repair device's high-resistance repair function to raise the voltage above 11V. 3. If the battery voltage is below 10V and cannot be increased through charging or repair, the battery must be replaced. 4. For cases of electrode sulfation or battery aging, it is also recommended to replace the battery as soon as possible. A car battery, also known as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. The commonly referred-to car battery is a lead-acid battery, which is primarily made of lead and its oxides, with sulfuric acid solution as the electrolyte.