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[Q] Battery Life TERRIBLE Once Rooted!

I'm having the strangest problem with my HTC Evo...
I used to get over 22hrs of moderate use (rooted) and ever since flashing any ROM running Sense 3.0 my battery life is affected to the point I'm lucky to get 6 hours of use. It discharges 15% within the first 10 minutes after unplugging the charger and continues to discharge at an increased rate throughout the day.
I unrooted the phone and took it to Sprint to "test" and after 3 hours they gave me back the same exact phone claiming they had "updated" it and everything, including the battery, had tested perfectly fine.
I feel like they are giving me the run around because obviously something is wrong here.
Any ideas as to what is going on here?

Rooting doesn't improve battery life, never did. Think of rooting as gaining admin privileges to a Windows PC, for example.
I think you have a background process running that is taking up a lot of battery, check the Battery Use page or reboot the phone.

I know, but it shouldn't diminish it either. It does gives you a chance to see a potential increase by undervolting, underclocking, ect.
Anways, no background apps running. All display scaled down, GPS off, ect, ect.
I have no clue as to why this sudden decrease in life. And Sprint says the battery is testing "excellent" as is the phone. Obviously something is not right here. Feels like they are being lazy and trying to avoid giving me a replacement.

Evo is known for bad battery usage. Best thing for you to do is get a backup battery.

Lol. I know that too, I'm not new to the Evo. I work with phones, Evo included, on a daily basis at my place of employment.
I'm saying this same battery used to last over 22 hours with moderate use when the phone was rooted and underclocked. Now the phone drains the battery amost instantly.
I refuse to purchase an additional battery to combat a problem Sprint should be fixing. I paid over $500 for this phone and haven't even had it a whole year yet. Something else is going on here...

Sounds like a rom issue, not a hardware one. Those sense 3.0 features and eye candy come at a cost.

Yeah. Sense 3.0 is a battery hog. Try cm7 or something AOSP
ADR6300

yeah, one turne off and reboot, Battery Life TERRIBLE too, i'm lost 10% when reboot

watt9493 said:
Yeah. Sense 3.0 is a battery hog. Try cm7 or something AOSP
ADR6300
Click to expand...
Click to collapse
It's ture ！

Have you tried an app that shows you battery usage over your running apps? May tell you which programs are stealing all the juice

!. Rooting does not have anything to do with battery life...well..not directly..it depends on your kernels, apps, phone settings, etc.
2. I agree, Sense 3.0 seems to drain your battery a bit more than previous Senses... well...you know what they say, beauty has its price..about the AOSPs, they have better battery live but they are not so pretty as the Senses...again...beauty has its price

If it helps the 'Live wallpapers' are known to eat battery, but what it could be is Wifi, if you leave it switched on all the time it may be connecting to open wifi networks without you realising and eating the battery.
Interestingly though, a whole day of use, some wifi a bit of camera and some calls on a wildfire with wifi on, didn't seem to drop the battery much and this is with a rooted phone.

you can try green power

Even though it may sound lame to some of you, the app Juice Defender has actually helped extending the life on battery quite nicely for me...
Another possible route might be to try different Radio/RIL combinations, some can also extend your battery life.
Not to forget, as someone posted previously things like live wallpapers or background process. Task Killers have been known to cause battery drain for instance.
Good luck in your quest for battery life!
Hans

if you go to battery use in settings, youd probably find out whats causing your battery drain

[BATTERY] BlindIce 5.4

Hello,
I can't post in the BlindIce topic so I hope it's fine here.
I've seen only good reviews about the battery, that's the main reason I installed this ROM, but I seem to have a problem, my battery drops like crazy. In ~2h it already went down to 86%, and all I did was send 2 SMS. On Endymion I didn't have this problem.
And I also have a problem with the stock browser, it's moving like a snail, but the main problem is the battery, firefox/chromw is working fine so I can live with that.
I'll upload the battery log after I get home, if needed.
Sent from my Desire S using XDA

i was also very happy with it despite minor bugs but eventually many things sent me back to endymion i can guarantee pretty soon you'll be back on endy, ics roms are nice but until the kernel comes out there isnt really one that can rival endy
anyway back on topic, check things like widgets? especially things like youtube widget i just took mine off, having it there means its connected to the net cycling through the subscriptions constantly, thats an example most widgets add to drain quite well, check your syncs, which app syncing for how long, can you do it manually etc, weather apps are they syncing to frequently, which apps are using location? using better battery stats i found google locations is used in many things without me even knowing, all of these things should be checked and configured on any rom, there is nothing really specific, maybe your 3g is using up the battery? try switching to gsm only.. finally have you calibrated the battery or more specifically the phone; so it reads the battery accurately.. thats all the things i can think of off head to help

Thanks for your reply.
Anyway, all the config was done and there was no widget running so I guess it was something with the kernel/ROM that my phone didn't like, considering that I'm probably among the few or the only one which had such an issue.
And like 3h ago the battery was hot as hell for no reason, only Y!M was running, it literally burned my hand, there's still a little red spot, so idk what was the reason or what happend but I went back to endy, after the 3.0 kernel will be out, I'll try again, until then thanks and keep up the good work @devs.
The topic can be closed.

Same problem with that rom
After 15 minutes of listening to music battery drains from 100% to 75%

Widgets
pR13S7 said:
Same problem with that rom
After 15 minutes of listening to music battery drains from 100% to 75%
Click to expand...
Click to collapse
Any widgets (or sync's) running on your phone?
If so - how many and what kind?

The battery isn't that bad for me but on all of the ICS ROM's that I've used the battery drain issue is quite bad. Then again, I was using Virtuous Affinity for a while and the battery wasn't brilliant on that either so I've come to the conclusion that I will probably require a new battery soon.
But still, the battery on my phone on BlindICE has been better than on yours but I'm reluctant to switching from it now

Android OS drain - who else has it?

Hello,
I know there are some topics like this but they were not clear for me.
Sinds already a really long time i have serious draining problems.
when i look at my battery usage, i see android OS just as high as the consumption of my screen.
I changed to every (ICS) ROM you can imagine, but the problem always comes back.
Is it normall that android OS is using between 20-50% ?
Does everyone have this problem?
Better battery stats says: audio out_3 and alarm manager is causing it.
But i can't really remove them can I?
I noticed the back of my phone is always warm, it just doesn't cool down.
I think one of my apps is causing this drain, but I really don't know how to find it.
Do you have any suggestions?
thank you!

You could try a slimmed down version if something like AOSP then see without installing any apps if the problem still occurs.
As for heat mine is always warn too even undervolted and underclockdd to 972mhz it can get warm.
Sent from my pyramid...

when I still had my MT4G, someone found out that if you delete "Google Backup Transport" that the Android OS would go back to normal along with battery life. Im not sure about the Sensation, but make a backup of the file and try deleting it to see if it helps

AOSP had the same problem, but it could be slightly better.
I will try google backup transport.

i have the same problem with AOSP based roms, i normally get around 7-9 hours from a AOSP rom (even tho i have an extended battery) but im currently using rdejager's miui sense rom (undervolted by -100) and im can normally get around 24-30hours from one charge

I flashed Cyanogenmod (opensensation) and i'm really happy with it. I also formatted sd card. Android OS is working normall for now, but it might come back (usualy does :S)
Also i'm buying an anker battery, so i hope the problem is solved!
Otherwise JB must solve it right?

audio out_3 ? you can uncheck Key tone,or download One Power Guard or It will give you some optimization tips.

Cusrom ROM's + Dailer Bug?

Hi all, just got my 11yr old son a ChaCha. He wanted a Blackberry for the keyboard, but managed to persuade him to have the ChaCha. Anyway, it seems to have this infamous dialer bug.From reading throu the forums, am I right in thinking that if I put a custom rom on, it will get rid of the dialer bug? He curently takes it to school, at 100% power, and generally comes home with the phone on around 10-20% power!! He is only allowed to use it at break and lunchtime!! Also, as it's for my kid, I would like it to be as close to stock as possible. Any recommendations? As I already own a customised Desire, I am happy to 'play about'. I have already unlocked the bootloader, and rooted, so that I can use link2sd. Without that he could only install 3 apps on it before it got the low disk space warning!! And as he's only 11, he likes to put a lot of junk on his phone!! Any help would be most appreacited. Thanks.

Like I mentioned here, I don't think that the dialer bug really exists. It's just the battery statistics that are not very clear.
The overall battery performance of the Chacha is very bad, so if you play some games they could drown the battery within an hour. There only thing you could do is rooting the phone and using another ROM. You can win a little with this, but for playing games, Chacha has a very bad battery performance.
Best performance was with CM7 - there my battery live was 1 1/2 days (without playing games), with CM9 now it's less then a day again.
So for better battery performance and keyboard I guess the Motorola Pro is the only phone, or non-Android phones.

I agree. There is no dialer bug. Those are many processes that show as Dialer. I don't mean to offend you, but have you considered that your son is using the phone not just at break and lunchtime? It is hard to resist, especially when it comes to new things. You should test it yourself and see if battery drains that much in that specific time frame.
Regards

Custom ROM would be a good option, but as he's 11, he's probably not old enough to appreciate the faster speed of CM7 or CM9, over his front camera. I'm guessing he'd want his front camera to keep on working lol
But when I was using the stock rom, I just turned my 3G data off whenever I was not using it, and that makes the battery last miles longer
For easyness (lazyness). Create a widget on the homescreen, under Settings and Mobile Internet. And then you'll have a widget you can just tap to turn on and off the mobile data as long as your son can get the hang off turning it off when he's not using it, then that should work a treat

go for CM Roms
IMHO I do believe that there's a dialer bug in stock Chacha, I think it is caused by the dialer's continuous polling of the proximity sensor (this bug has been reported in a lot of htc stock gingerbread phones, the app dx battery helped me confirm this.) Custom ROMs helped me solved this bug but only those that are CM-based (stock-based roms still has the dialer bug). CM7 is very stable and has the best battery life for any Chacha ROM but CM9 just looks so damn good and the battery life is still way better than stock (in stock, I get battery drains even if my phone is just idle, wifi off)

Thanks for the advice guys. I think we will leave it a couple of weeks and see how it goes. May end up putting CM7 on it at some stage, as I have a CM7 based ROM on my desire. He is only allowed to use it between lessons, otherwise it's detention!! He also uses it to listen to music to and from school. And yes, I have notice that the battery goes down rather quickly, when I was setting it up for him.

Well, there sure is a bug in the stock rom that drains it within hours. IMO it's coming from the 3G connection... Sometimes, when my coworkers drive me crazy, I turn off the 3G... I live in a neighbourhood with a bad network connection, this means that it is reconnecting all the time. My battery normally went for about 15 hours, with 3G off it works for over 20 hours. But since I've installed CM9 it stays alive for over 40 hours...

Thread moved
Moved to General as it is clearly no development thread
jotha - forum moderator

kernel recommendations

hello
i am getting shocking battery on my rooted/s-off htc one xl.
running a carbonrom jb 4.2.2, non-sense
looking for the mythical kernel and/or fix that will return my battery to the heady days of not draining 30%+ overnight, can easily bleed 10-15% with 30mins of screen time (have went down the batterystats path, turned off google now, turned off location services etc and its still rubbish), the only thing that seems to stop the battery draining is to actually turn the phone off completely.
i am currently running the rohan kernel, a recent one (testing.c or something)
the actual linux kernel version (3.0.70) seems pretty old, i have seen some non-sense kernels for the other htc one x, that are based off of a kernel version of >3.5..
i am sure the battery issues i am having are software, maybe driver, related, the battery should not be bleeding so quickly.
i am happy with the vanilla android experience, and dont want to switch back to a sense rom now

Seems to be that most people see worse battery life on AOSP vs Sense.
You might try Greenify, which is an app that allows you to control background processes. It's not a task killer but rather relies on some system setting to keep the apps from running background at all. I've seen improvements in battery life using it.
As far as kernels, you have to try different ones yourself and see. Experiences will be different depending on how you use your phone and how you've got it configured, as well as the area you live (signal strength makes a big difference).

I use greenfiy and I see no improvements. Been using it for about three weeks now. Even when I turn off GPS, maps is still our of hibernation. I known I can uninstall it, but I rely on navigation as I drive a lot. And the fact that I can use it offline without downloading maps is a plus.
Haven't experience different kernels yet. It seems like a paradox that sense would have better battery life. Oh well. I will keep researching.
Sent from my Carbon-ize Evita using xda-developers app