How to Repair a Car Battery?
2 Answers
Non-metallic tools such as syringes or plastic funnels. Open the vent valves of the lead-acid battery. The vent valves can generally be divided into two types: one is the pry-open type, which requires using a sharp tool to pry it open, and the other is the screw-open type. Add the repair solution to the battery vent holes according to the recommended dosage. If the battery is severely dehydrated, after adding the repair solution, you also need to add a replenishing solution to the battery's internal separator. Reinstall the battery vent caps and let the battery sit for 2 hours before use. The longer the standing time, the better the repair effect will be.
Actually, there are ways to repair a dead car battery. I've been driving for twenty years and seen many such cases. Usually, when the battery is drained, try fully charging it first with a charger—sometimes it's just depleted from prolonged storage. Also, check the battery terminals for corrosion or looseness. Clean them thoroughly with a toothbrush and soapy water, then apply some petroleum jelly to prevent rust. If it's a liquid-type battery, check the electrolyte level and top it up with distilled water if low, but don't overfill. Once, my own battery kept losing charge, but after cleaning and using a reconditioner, it has worked fine for nearly two years. Avoid leaving electrical devices on overnight when parked to extend its lifespan. Regularly testing the voltage is a hassle-free habit—just get a simple voltmeter to do it yourself.