Your battery may be faulty. Try calibrating your battery before you buy a new one. As your Mac is 13 months old, the one year AppleCare coverage on your battery has expired. Buying extended AppleCare coverage will not cover your battery.
Your battery may be faulty. Try calibrating your battery before you buy a new one. As your Mac is 13 months old, the one year AppleCare coverage on your battery has expired. Buying extended AppleCare coverage will not cover your battery.