My battery performance had turned decidedly poor, so I arranged for a replacement (free of charge) through Apple.
It arrived today.
Here are the last few days worth of battery reports from Coconut Battery. Can you tell which is the new battery?

My battery performance had turned decidedly poor, so I arranged for a replacement (free of charge) through Apple.
It arrived today.
Here are the last few days worth of battery reports from Coconut Battery. Can you tell which is the new battery?

So, what sort of battery life are you getting from the new one?
18 hours, 45 minutes after the fact.
So far, 4 hours instead of 1.
21 hours, 43 minutes after the fact.