7 - 10 Minuten
The older versions of the MacBookPro (A1150) don´t have large Hard Drives, so we had to put in a larger one. At the same time the battery went wrong, so we had to replace it, simultaneous with giving the MacBookPro some more RAM
With the guides of ifixit it was as easy as like playing a game!
Everything I found, was like described in the repair guides from ifixit!