Can a Car Battery Be Repaired If It's Broken?
3 Answers
Car batteries can be repaired. The functions of a car battery are: 1. To supply power to the starting system, ignition system, and electronic fuel injection system during engine startup; 2. To provide power to the car's electrical equipment when the engine is stopped or idling at low speed; 3. To act as a voltage stabilizer for the entire vehicle's electrical system; 4. To store excess electrical energy generated by the alternator. Methods for maintaining a car battery include: 1. Cleaning the white acid corrosion powder accumulated on the battery terminals to extend its lifespan; 2. Adding distilled water to the level between the upper and lower marks; 3. Regularly checking if the battery is charging properly.
The car battery is dead, and from my years of driving experience, it's basically irreparable. The internal workings of a battery rely on chemical reactions, so once it's damaged, it's permanent—like electrode sulfation or leakage. The so-called repair methods offered by shops are just temporary fixes. I recommend replacing it with a new battery for peace of mind and safety. The replacement process is simple: first, disconnect the negative terminal, then loosen the mounting bracket and remove the old battery. Install the new one, secure it properly, and don’t forget to clean the terminals and apply some anti-corrosion grease. Regular maintenance is crucial—check the voltage periodically, and if the car is parked for a long time, remove the battery to avoid over-discharge. Choose a reliable brand like Varta, which can last three to five years. Don’t waste money on cheap repairs; they might just lead to starting issues later.
A dead battery is really frustrating. I had the same issue last month. Usually, when it's broken, it can't be repaired—internal short circuits or aging can't be fixed by just adding water. The most practical solution is to replace it with a new one. You can buy a cost-effective battery from an e-commerce platform, like a Sail battery, which costs around a hundred yuan. Installation isn't difficult—just follow online tutorial videos: be careful when removing the old wires to avoid contact with acid, and make sure not to reverse the positive and negative terminals when installing the new one. After replacement, the car starts up quickly, and you can drive long distances with peace of mind. For maintenance, avoid running the AC or listening to music while parked, as it drains the battery. Remember, you can exchange the old battery for some cash at a recycling point—it's both eco-friendly and economical.
