I have installed Android 2.1 on my phone and now sometimes my battery dies very rapidly. I have checked the battery usage statistics and it says that it is due to a lack of a cell signal. I always show at least three bars at my house and my phone will be sitting next to my wife's Droid yet overnight my Droid will kill an entire battery and hers will be fine. Any ideas why this would be? I will also post this question in the hacks section since it may be due to the 2.1 hack.