Battery change MacBook Pro 15
15 - 30 minutos
The battery was not holding charge and needed to be changed.
Changing it went fine. I was happy to find a company from which I could obtain a battery for this late model Mac. I was even happier when I read the story of your company startup and that you are in California. The battery was delivered less than 24 hours after I ordered it!
There ought to be a better way to determine if the MacBook Pro is mid-2009 or mid-2010 because of the difference in the screws that hold the battery in. I modified one of the flat electronics screwdrivers I have and used it to remove and reinstall those three screws.
Tri-point Y1 Screwdriver
MacBook Pro 15" Unibody (Mid 2009-Mid 2010) Replacement Battery