So I used the Droid Bionic, and I have managed to go about 15 hours on a full charge, under my normal usage, over WiFi. That's with the peak-only sync and everything else. However I'm itching to finally have a phone that does not require charging at the end of the day. So I figured I would just get the extended battery, given the 50% off. Charged it FULLY before using it. Then set it to task. Mind, I am using Advanced Clock Widget, which gives me a readout of battery percentage with a time estimate. I don't know how accurate that estimate is, but it seems to be on point in my experience. It showed 100% < 16hr, which I take to mean that the battery will last "less than 16 hours". Eh? Thinking that maybe it just wasn't calibrated for the higher mAh, I figured I would just use it throughout the day and do my own test. I ended up killing the battery at 16 hours. 1 extra hour from a battery that has 1,000 more mAh? That can't be right. So I figured maybe it just needed to be conditioned. Having it fully discharged, I then charged it overnight. This morning it's back reporting 100% < 16 hr. Actually as I type this, it's down to 100% ~ 15 hr. Is anyone else using the extended battery that can give me some reports on your battery life? I'm trying to track down why this is so. One theory I have: Before I got the extended battery, I did start using Touchdown because I wasn't keen on the whole Motorola Device Administrator deal where my company can effectively wipe my phone whenever they please. Normally I wouldn't mind, but our corporate IT has managed to cause certain issues with our Exchange network, and the last thing I need is some tech pushing a button that deletes my personal stuff. So I got Touchdown to get around that, as well as the fact that the Mail app cannot manage to reply to emails properly. But it's not running and I still can't seem to manage to get any better battery. For what it's worth, I don't run Bluetooth, I don't run Location, and the only recurrent updating things running are the Advanced Clock Widget, Music Widget, and Gmail. But those three were running with the standard battery and I still got decent battery. Even if I drop the screen down to bare minimum I still can't get any better life. The battery history indicates that "Cell Standby" is the #1 killer, but honestly I still don't understand how a standby can cause battery impact. Any ideas?