Check this out!! It's still going!! Update: 40 hours and it finally died!! 36 hours and 16%!! 33 hours and 27% 28 hours and 48% I'm rooted (unrevoked) BUT I'm not running this over/under-clocking widget, nor do I run ATK or any other task killer! In fact, here's some of my pertinent settings: - Disabled 4G (can't get it where I live anyways) - WiFi HotSpot (android-wifi-tether) is obviously OFF most of the time - WiFi is ON, weak signal to boot (AP in back of house) - BlueTooth is ON, but not active/paired - GPS is ON - HTC Weather/Time Widget is on - Turned off FriendStream widget - Not running any silly MySpace/FaceBook/Twitter widgets - Push Email (ActiveSync from Exchange, average about 100 emails and 5 appts per day) - Calendar alerts were on vibrate most of the past 2 days but I turned that off as I don't need it - Also have K-9 running IMAP with a 5 min poll - I use speakerphone at least 50% of the time, and I had about 30 calls over the past 2 days - I've installed a bunch of apps, but nothing to manage the system/cpu - I'm running a pre-alpha of the security/anti-malware software I'm building - All of the Sprint/factory/HTC apps continue to run, but I seldom use them - I turned of all haptic feedback (uses vibrate) but phone/sms still vibrate - All other settings are factory, I'm "keeping it simple" I've had the phone a week basically, and let the phone die COMPLETELY on Thursday morningish, and I charged it up and used it that day and let it charge to 100% that night. I unplugged the phone around 1:30am, this was Thursday night. It was never this good though, I'm really surprised to be honest! Ok, here's the pics. You'll note a whopping 11 hours of Awake time too. Below is from early this morning when I woke up - 1 day 4 hours unplugged: This is from just a moment ago (10am Saturday) - 1 day 8 hours unplugged: Oh and this morning I did some texts, took a couple of short calls, and 2 videos of my daughter's swim meet races.. Oh I also checked all of my work emails, and I had to send these pics to other email so I could get them onto my computer because I didn't want to plug the phone in yet. I'm going to see how long it makes it before it dies.. Shooting for ~50 hours!! Again, this was from a full charge and includes 1 day, 2 nights, and now another morning thus far. I plan to do but have not yet done the CDMA-GSM trick, the battery green charge on/off trick, and also monitor my TWS at some point - that will be for the next test though, as I don't want to muck with this test (normal every day use test)! Edit: I see now if I disabled BlueTooth I'd save the battery even more, as it looks like it's sucking up a lot of battery and for no reason right now since nothing is paired or has been for the past ~24 hours. I'm happy!