i have been reading this thread today and I am a little curious... does anyone sleep? Who needs a full battery for 15 hours a day???
Here is my battery life story... When I got my eris, i drained the battery to less than 10% 3x a day for two weeks because I have never had a cooler computer, uh i mean phone.. this thing is faster than my desktop... I have d/l over 200 free apps in that time period...because of my app happiness i have also had to hard reset my phone 3 times and wipe my sd card twice in six weeks... anymore problems with my phone and vz will replace it... it takes me a week to replace my fav apps because i cant figure out which ones were causing the problems... load a few, wait a few days, load a few then wait a few days, etc.... the ones i have NOT reloaded and my phone has been stable for three weeks now with excellent battery life (at least for my lifestyle) are: panda home, atrack dog, ATK, and/or taskiller, bee battery meters, and a few games i can't remember the names...
my battery life goes as follows now... i run lightning bug at night while charging it (new update runs funny though), in the morning i listen to pandora while getting ready for the day, buzz off to kill my ringer at work two days a week, lots of fun surfing web when not at work, texting, calling, searching market, playing games, you name it i love it, my son also plays it all the time when i am driving... still a green battery before i go to bed... back on the charger running lightning bug... I do also have the widgets to toggle bluetooth, gps, wifi and mobile network, all are always off except mobile all the time... i have turned off all of the little tweaks that were mentioned here too, backlight, handcent, vib type, etc...
I even use it to shop at the grocery store, study, cook, pay bills, track my bank accounts... it even tracks personal fem stuff... I access it so much I put a neck lanyard on it so that it is within easy reach like a necklace... hoodies are your friend...lol!
i read in another forum that task killers are bad... in my experience it is true, mine were killing the phone app and my settings, my weather, my calendar etc which is seriously not cool... hence the hard reset every two weeks... but that forum that i read made sense, when the apps are stable, the phone knows what to kill and what to keep so that it is accessible when you need it while not sacrificing cpu usage, memory etc... the stable apps run faster if a portion are still running/idle/hibernating when you need it instead of having to start from scratch every time...and it also said the rules of a windows desktop do not apply to an android/linux phone operating system... oimho, if an app is causing problems turning the phone off and back on then uninstalling the app is the best task manager of all. Another forum said you may have to turn off and turn back on the phone several times before a serious problem resolves itself. But this does resolve problems better than a task killer...
so far this forum and the task manager forum have saved my eris from being replaced...
i think all smartphones are like human bodies, what you put in it effects how it operates and not everything works the same for each person...
now i just need to find a forum to run a windows mobile program on my android...