Hi yall, Had this Unibody Macbook Pro for about 2 and a 1/2 years I'd say. Today I turned it on without the charger connected, when it finally booted up the battery displayed ZERO percent and powered off. I plugged in the charger, waited about an hour, tried to power back on, the computer wouldn't power up. So I swapped my charger for my wife's Macbook (White) power supply and it began to show charging, properly booted upon request, and displayed 100% charged after 5 minutes. Now when I remove the charger it jumps back to reserves after a few minutes and displays the warning pop-up. Few questions; is the battery dead? If so why is it only allowing me to boot up with one particular charger and not the other? Is there anything I can do to avoid spending $129 at the Apple store tomorrow on a new battery, any tests I can run at home? Would I be able to have them test the battery if I brought in the battery and not my computer? Thanks for any advice. Kind of worried right now.