[Q] Rooted Xoom - Poor battery life...

rich549

Member
Jun 1, 2010
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Hi,

I rooted/overclocked (to 1.4Ghz) my Xoom a couple of weeks ago and everything seemed ok, all of a sudden though the battery is draining rapidly throughout the day.

In standby with light usage over the last 5 hours the battery has been depleted by nearly 30%, by light usage I mean I looked at my tweets in the Twitter app for about 15 mins.

I keep the screen brightness on auto but it generally stays quite dim, in SetCPU the scaling is set to OnDemand and the Xoom is connected to a wireless network with almost full signal so it's not constantly searching for a network. Before I rooted the battery would last for a few days with average usage and now I'm charging it every night.

Any ideas what could have happened? I'm running the 2.6.36.4Tiamat-Xoom-v2.0.0-Katana-GPUOC-gfed7aa6 kernal.

Thanks,

Rich
 
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okantomi

Senior Member
Feb 20, 2011
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Boston, MA
Hi,

I rooted/overclocked (to 1.4Ghz) my Xoom a couple of weeks ago and everything seemed ok, all of a sudden though the battery is draining rapidly throughout the day.

In standby with light usage over the last 5 hours the battery has been depleted by nearly 30%, by light usage I mean I looked at my tweets in the Twitter app for about 15 mins.

I keep the screen brightness on auto but it generally stays quite dim, in SetCPU the scaling is set to OnDemand and the Xoom is connected to a wireless network with almost full signal so it's not constantly searching for a network. Before I rooted the battery would last for a few days with average usage and now I'm charging it every night.

Any ideas what could have happened? I'm running the 2.6.36.4Tiamat-Xoom-v2.0.0-Katana-GPUOC-gfed7aa6 kernal.

Thanks,

Rich
You are overclocking. That will drain battery faster. Also you didn't mention if you have set profiles in Set CPU to save battery charge when the screen is off, for instance. I set mine on interactive, as well, as Team Tiamat has advised. Also look at what is using your battery the most--screen will be most of it. Also, some apps try to sync all the time and your battery can drain faster that way.
 
Last edited:

rich549

Member
Jun 1, 2010
16
1
0
Well I knew that by overclocking I'd drain the battery faster, but I didn't expect the drain to increase so dramatically! You've made a good point with the profiles in SetCPU, I'l be honest and say that I havent really had much of a look around the app other than overclocking the CPU and using the info screen to check the temperature, benchmarking etc.

I'll give the profiles a try, with regards to apps that sync data constantly I've only used the email, gmail and twitter clients for this since I brought the device so I wouldn't have expected this to contribute to the increased drain.

I'm no noob to Android devices and rooting but overclocking is a whole new thing to me :)
 

rich549

Member
Jun 1, 2010
16
1
0
So you overclocked your CPU and gpu to use twitter and the gmail client?
Errrr no.... they're just the apps that are always syncing data from the web, I was giving an example of the apps that are always syncing to answer the previous poster's point that a lot of apps will sync data in the background.
 

rich549

Member
Jun 1, 2010
16
1
0
--Update--

Adding a ScreenOff profile to SetCPU didnt help very much, set the max CPU to 312 and min to 216, also set scaling to Conservative. Proceeded to charge the Xoom to 100% and then left it on standby all night, this morning the battery was down to 68%.

I've now restored my Xoom to a backup I did the same day I overclocked it, as I mentioned in my original post this issue only started a couple of weeks after overclocking.