check my signature for ROM and kernel info, I'm using car O dope tweaks with vipermod.. Awesome battery life

Oh and btw I'm on the stock OEM battery

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Originally Posted by imheroldman

Im in a similar situation signal wise and that is a huge culprit for battery drain! Also, try using stock, cpu speeds and voltages and ondemand governor. I can almost assure you will not see a difference if not get better battery life stock, im not convinced by under clocking or under volting. I've tried about everything...

Sent from my PC36100 using xda premium

I can't speak for underclocking, but undervolting makes a huge difference, and so does your governor.. Maybe you weren't setting your **** up right? But yeah my suggestion to get the best battery life is to use an aosp ROM, try tiamat out mason kernel (use smart ass v2 governor with mason), and undervolt...

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Originally Posted by jboyer0000

What's the point of having no data on your EVO? The best thing you can do is spend a little bit on an extended battery. I've got the pretty much the same setup as you and I'm at 24 hours right now. I got 2 3500 batteries for just over $20

Sent from my PC36100 using XDA

you dont need to spend money on an extended battery that is huge and cant fit in your pocket anymore.

if you undervolt correctly this phone should go around 40 hours on battery, which mine does now. you can undervolt safely -75mV on the Evo 4g.

You can also try an app like BetterBattery Stats. You can get it from this XDA Thread:

http://forum.xda-developers.com/show....php?t=1179809

You can also buy it from the Google Play store to donate to the dev.

Either way, it will show you which things are sucking down your battery. If it turns out to be your 3G data in a low signal area there isn't much you can do, but if it turns out to be some app or other service you could disable them to get back some battery life.

Good luck!