Hi, I, today, received a MacBook 13" white (non-unibody, begin 2007). The device was given to me as I work in an Apple Store in Amsterdam. The user wanted us to recycle it. After first turning it on, I discovered a new HD was necessary to get it up and running. .. It's running Lion (2Ghz Intel Core 2 Duo). Also, there's a brand new battery inside. Although, it does detects the new battery and sees it's amperage and charging cycles, it can not use it. The battery has about 35% charge and the MacBook sees it but won't turn on from it. What can be wrong (as it definitely sees the battery and tells me all the information about it)? MacBook can be used via it's AC adapter. Thx in advance.