I had a rather unfortunate accident with a glass of water and the MacBook a while back, and if you've seen this model you'll know that the keyboard is designed to not only let water in but to direct water to as many parts of the inner workings as possible. Luckily I turned it off and removed the battery immediately. I let it drain out for a while and waited about a week to try it again and it works great. It won't even turn on unless the battery is removed, however, so that's ruined and I'm running on the charger alone. Would you all recommend I buy a new battery at the apple store or just find a used one? I'm probably gonna get a new one.