Before jumping into buying a new battery, make sure that the battery needs to be replaced, from a trusted workshop. Major check steps are:
- Look for structural failure, sulphate build-up.
- Re-charge the battery, drive it around, and verify how it performs.
- Check the alternator's performance
Before buying a new battery, make sure you are using the manufactures recommended dimensions and electrical capacities, failing which may inflict damage to the electrical components of the car.