I sometimes think we're all talking about completely different phones. For every "great battery life" comment I read, there's someone else like me that's completely fed up with the way the Droid eats the battery... and I have yet to figure out why.
Mine will consistently drain 40-50% of a fully-charged battery in only 4 hours - and that's just sitting there with ZERO use! I've tried everything I can think of: I've tested a number of different ROMs, different kernels, and different speeds. I've even tried under-clocking, but still the same disappointing results. I have stopped every user app that I can, and turned off almost every type of background notification.
I do connect to Exchange email (using Touchdown), but turning push email completely off doesn't help. The only widgets I'm running are Beautiful Smaller Home, Genie (aka News & Weather), Power Manager, and Pure Calendar.
And heaven forbid I actually try to *use* the phone! 30-45 minutes of Web browsing via 3G at fairly low screen brightness, leaves me with only 10-20% left. Just playing a basic Solitaire game for an hour does the same thing.
Thinking it might be the battery itself, I bought a new replacement -- but it drains just as quickly.
I'm at a loss to know what else to try. Looking at battery use stats in Settings or Spare Parts says that it's not any one app sucking the battery dry; the vast majority shows as normal cell and phone standby.
So if anyone has suggestions, I'd be very grateful to hear them. I love this phone, but I have never owned any portable device with worse battery life. What could be wrong?