I have a white, 13-inch MacBook from 2009. I know my battery needs replacing but I just don't have the fund for it right now. I'm worried though because the backing of my computer that covers the battery is starting to protrude and sticks out from the rest of the back. It makes me uncomfortable and worried that it's about to explode or something. My question is would my macbook still work if I took out the battery and just hooked up to the power cord? I plan on getting a new battery of course but I can't even afford the $20 ones on Amazon right now. Any advice? Thanks.