15 - 30 Minuten
Dead battery. Needed to replace it.
Very easy to replace using ifixit guide. Also purchased tools from ifixit. 1st time doing this, will definately use ifixit again.
Do it yourself. No need to go the Apple store just to replace a battery.
P6 Pentalobe Screwdriver 2009 15" MacBook Pro Battery
Essential Electronics Toolkit
MacBook Pro 15" Unibody (Mid 2009-Mid 2010) Replacement Battery