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Computer wont charge, but works fine when I swapped the dead battery out for a fresh one. I found the part. Not sure if this will do the trick, but I was told it’s either try this or replace the logic board. Thanks http://www.ebay.com/sch/i.html?_odkw=mag

It’s built into the left I/O board. Here’s how to replace it: MacBook Pro 15" Core 2 Duo Models A1226 and A1260 Left I/O Board Replacement