I have a Nexus One which recently received the Gingerbread update. I’ve noticed that my battery life has not been as good as before. Over night last night I captured some evidence. I put the device on the nightstand, and this morning it was dead. Frankly, I had barely used the device that day. The disturbing part is the amount of battery consumed by Android OS.
I plugged it into my USB and I grabbed these screenshots:
I would love to be able to drill down deeper and find out what is actually chewing up battery.