Repairing The Ever-Famous Macbook Pro Battery
15 - 30 minutes
Service battery message appeared
Excellent - 5 minutes. Screws that hold on the back plate are difficult to remove.
Buy the tools because they definitely help!
P6 Pentalobe Screwdriver 2009 15" MacBook Pro Battery
MacBook Pro 15" Unibody (Mid 2009/Mid 2010) Replacement Battery