Hi Guys, Just wondering if anyone has ever encountered this or if any experts out there know of the issue. I have a spare White Macbook (late 2008: Core 2 Duo 2.1GHz, 1GB, 120GB) that I'd like to set up for my brother to use to introduce him to the wonderful world of Macs. The problem it is having is that when I have a battery connected to it (I tried 2 different ones included a known-good one that is brand-new just purchased from Apple) it powers on and gives me the chime, but then immediately shuts off unexpectedly giving that little "whine" sound like if it just lost power all of a sudden. However, when i take out the battery, and just plug it into the Magsafe AC charger it works fine. Also when just trying to run on battery it does not turn on at all. Here's some cliffs: 1) Macbook with just battery does not turn on 2) Macbook with battery + Magsafe AC charger connects powers on, gives the chime, but then immediately shuts off making the "whine" sound as if the power was suddenly cut off 3) Macbook with no battery connected and just the Magsafe AC charger connected works fine. Do you guys think this is either: A) battery connector issue (the little piece with the metal wires that the battery connects to. ~$50 part) B) Logic Board issue I already tried resetting the PRAM and SMU to no avail. Thanks for any insight/advice!