> I read every single comment on [my EVO 4G review](http://www.mobilecrunch.com/2010/05/31/htc-evo-4g-sprint-review/) with the hope that I was wrong about the phone’s battery issue and was simply doing something wrong. But none of the suggestions significantly improved my EVO 4G’s battery life. However, by doing a bunch of little things, I extended it’s idle life from about 12 hours to 14:30 — this is the phone’s battery life with everything turned off besides 3G and it just sits. All the tweaks are easy to do, but you’re going to have to forgo some of the more fun things about Android. It’s a shame, really, that a user has to give up fun widgets, advance wireless connections, and auto setting just to squeeze a few more hours from their phone.
>
> **Phone settings**
>
> - Get rid of the large HTC widgets like bookmarks and FriendStream
> - Turn off widget animation
> - Use a static background rather than a live background
> - Turn off auto brightness, set screen backlight at 10%
> - Decrease screen timeout from 1min to 15 seconds
> - Keep WiFi, GPS, 4G off until it’s needed
>
> **Apps**
>
> Advanced Task Killer
>
> - Flame me in the comments if you want, but ATK should be installed. Without it, there’s no way to kill the Sprint apps the randomly launch and drain the battery. All of a sudden on the EVO 4G, Sprint Navigation, Sprint TV, or Nascar Sprint App will run. But it’s just not those apps that need ATK. There’s no way to kill the camera without a task killer like ATK. Yes, Android is based on Linux and manages apps efficiently blah, blah, blah, but I’ve found that ATK does improve battery life when managed properly.
>
> SetCPU
>
> - This app allows users to tweak the CPU in various ways. Either you can overclock the chip, and kill the battery faster, or set the CPU to downclock when the phone’s idle. The only problem is that the phone [has to be rooted](http://www.mobilecrunch.com/2010/06/03/evo-4g-root-released/).
via [mobilecrunch.com](http://www.mobilecrunch.com/2010/06/03/tips-and-tricks-to-extending-the-htc-evo-4g-and-incredibles-battery-life-and-what-this-says-about-android/)
This is just too easy, so I’ll let it speak for itself.
My favorite part is the Sprint Apps that launch automatically at random and drain the battery. People criticize the Apple/AT&T relationship, but they fail to realize just how hard it must have been to talk AT&T out of loading up the iPhone with crap apps by default.
