So I'm getting a "Service Battery" message o n my mid-2009 15" MBP. The battery life has been impressive for the 2.5 years I've had this computer (original battery). Now, the battery isn't completely useless (I can get through a 2-hour meeting) but I'm thinking it's getting close to time to replace the battery. It looks like the cost if I go to the Apple store is about $130. Honestly, I can replace the thing myself but I want to buy a reliable battery. I don't want any expanding, exploding, or leaking going on. Is there consensus on where to buy batteries for MBP's without going to the Apple store?