Ask an expert

Hey there.
Wondering if I can change my car battery with no problems by just disconnecting the old and replacing with the new, or will it wipe more than just the car radio settings.
Thanks

Hi there,
If your battery has gone completely flat, then all the system memories would have cleared anyway. But if there is still a bit of life left, then it is better to have a professional carryout this, as they can use a memory-saver device to hold the memory and save any potential hassles with re-establishing engine or transmission re-learning that can happen in some cars.