[Touch Diamond, MDA Compact IV ROM Development] number16:
I've just flashed 1.11, and so far so good, but I haven't really spent enough time with it to tell.

From my experience, going from 1.09 to 1.13 to 1.15 now to 1.11, I don't really see a very significant difference in battery drain from release to release that some have claimed. At most the difference is 10% from what I've seen. I did see the battery drain increasing significantly after flashing to 1.6.4, but that could be a case of unmatched radio version and rilphone. I will report on 1.11 in a few days.

Yes, I always keep AS closed ... and that's why I think your 'fake AS server' setup is a genius act. :)

Previously my best trial at keeping AS closed was using ASynckiller.exe, but that little program itself also drains quite a bit of battery, so it's just going from poison A to poison B.

Right, and that's why I don't use it.

I use the screenlock that comes with PhoneAlarm, which I don't think uses much battery. I haven't heard anyone complain about it anyways.

I'm very interested to see how much battery does the g-sensor drain. Maybe I should disable it and go with manual rotation just to test.

The way I look at it, I use rotation only in a handful of applications - Outlook, Opera, Photoviewer, and a few games. I actually find auto-rotation annoying in many applications, esp for Manila, so in flip_it I've limited rotation to 0deg only by default (no rotation).

Now, if g-sensor doesn't drain a lot of battery, I'd still prefer to enable it for a handful of programs. Reason is, well 1. it's cool, 2. it does come in handy, and 3. the hardware comes with the phone, might as well make some use out of it.

If it drains a lot of battery though, then it's another story.

Is there a way to quickly switch between manual and automatic rotation in your ROM?

I also wonder about the light sensor ... it's supposed to save your battery by dimming the display in darker environment, but I wonder how much power does the constant light sensing drains, and if there's a net gain in the end.

I use In_call_tweak to blank my screen when I'm holding the phone up, and it turns the screen back on when I lower my phone, when I need to dial a number or drop some notes. Of course, it needs g-sensor to be active to work.

Yes, but unless your phone rings a lot, I doubt that makes much difference.

Well, yes, I do fix it to GSM. I also use WMLongLife to keep my databand to GPRS/EDGE for all email poll, and use 3G only for web surfing.

That said, I've read an HTC guide on band selection, and they actually said selecting auto saves battery. They said GSM saves battery in some locations, while WCDMA saves battery in some other locations. Setting it to auto allows the phone to choose. I haven't actually tested it myself.

Yes, I always open applications only when I use them, and close them as soon as I'm finished.

That said, some 'background services' do drain a lot of battery. Manila, for starter, is a huge memory and battery sucker. And TF3D2 is A LOT worse than TF3D1 ... but it is cool, and it works, so I keep using it.

Still, I disable tabs that I don't use to save memory (and probably battery). For example, I have given up on using Music tab to play music (I use WMP instead) and as soon as I disable the Music tab, I realized a 10% saving in memory space. That's not from playing music, just from ENABLING the music tab.

MSVC is another memory (and probably battery) hog ... but I use it, so what can you do?