As asdff said, you're wrong. The first metal unibody MacBook Pro (15") and MacBook (13") in 2008 had batteries behind doors. In 2009 the MacBook was replaced wi

As asdff said, you're wrong. The first metal unibody MacBook Pro (15") and MacBook (13") in 2008 had batteries behind doors. In 2009 the MacBook was replaced with a) the unibody plastic MacBook and b) 13" unibody metal MacBook Pro, while that year's 15" MacBook Pro was almost unchanged, but all three 2009 models lost their doors.