I have a Macbook Pro whose battery has recently dropped from 3 hours of charge to 1 hour.
Is this the actual way for batteries to die? I thought that it will hold regularly less and less, but not have such a huge drop at once... Or maybe I've done something wrong with it?
The Mac profile utility says I have 130 Cycles left, and I've had this MacBookPro for at least 3 years. Is this the way it goes ?
Note: the profile also says "Check your battery". Is there a utility that has this check feature?
Added : A screenshot of the suggested Coconut check : What's your opinion ?