So I was flashing cm6, started with 40% battery. Tried it for about 5 minutes, realized that nothing compares to bb and wiped/restored. The whole time I had my phone on the charger. After the resore my battery was still at 40%. I checked my email, opened the browser and suddenly I got the under 5% warning. Even battery graph shows a massive downward spike. Any idea what could've caused this?