My MBP battery is absolutely screwed. I'm at 158 cycles and 36% health. It's out of warranty. I already tried taking it up with Apple. I honestly don't want to pay the Apple premium for a battery so I checked eBay and they advertise these "genuine" Apple batteries. I wanted to know if anyone is familiar with the legitimacy of this claim and if it's a go to buy the battery. Honestly, I just want to get another year out of whatever battery it is, I'm buying a new laptop in Summer 2010, I bought this one Summer 2007. Should I just get the eBay battery?