Can the battery be repaired?
2 Answers
The battery can be repaired and reused, but the performance after repair is generally only about 50% to 70% of its original capacity. Below is the relevant information: Repairable conditions: slight sulfation of battery plates, internal short-circuit faults, open-circuit faults, water loss or electrolyte deficiency faults, and unbalanced faults. Maintenance of car batteries: The battery in a new car is energy-efficient because the generator in a new car performs well, allowing the battery to be fully charged. Car batteries should be checked regularly—once a week in summer and once every two weeks in winter. The driver's habits can affect the lifespan of the car battery, so it's important for drivers to maintain good driving habits.
I remember when my car battery had issues last year, I tried to repair it. At that time, there was just some corrosion on the terminals, so I cleaned them and reconnected the battery, which worked for a while, but soon it failed again. The battery is internally sealed, so if it ages or has an internal short circuit, there's no way to open it for repairs—you can only replace it with a new one. Most batteries last about three to five years. Over time, they lose their ability to hold a charge, and frequent difficulty starting the car is a clear sign. I recommend first checking if the terminals and wiring connections are clean and secure, as this minor issue can be easily fixed. However, if the battery itself has problems, such as leakage or damage, it’s better to go to a shop and replace it with a new one to save trouble. Also, try to avoid deep discharging the battery when parking to extend its lifespan.
