I just wanted to share an interesting test I recently performed. Due to constant frustration with my battery life, I decided to remove all my apps and see if things improved. I ended up removing every app (I had around 100), except the following two: Google Voice ( I use it for text messages ) Battery Left Widget ( I used it to track estimated battery life ) Before doing any changes, Battery Left Widget was showing about 9 hours and typically at the end of a work day the phone was almost dead. Today, with just those two applications, the situation is completely different. Here is where I stand right now: Battery Remaining : 30% ( per the Android OS ) 14h 17m 19s on battery Cell standby : 42% Phone idle : 40% Wi-Fi: 8% Android OS: 7% Display: 3% Android System: 2% Maps: 2% The Battery Left Widget is saying about 22 hours of full battery life, but you need to run it on a few full charge/discharge cycles to get a better estimate. In the past, when the phone would die in around 9 hours with minimal usage the percentages of usage seemed similar to what I got after removing the apps... Cell standby and phone idle near the top, and very minimal use by my applications. So nothing on the list clearly jumps out as a reason for the difference. This was done on a stock, non-rooted, D3. If anyone is interested in seeing if they get similar results, request you post to this thread stating the following: 1) Battery life before removing all apps 2) Battery life after removing all apps 3) Estimated full battery life based on "Battery Left Widget" I can tell you, getting used to no apps isn't fun but it is an interesting test. I figure "no apps" or "almost no apps" is a great way to test battery life against other users for comparison.