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Kernel Advice

I have poor battery life on my desire, it barely lasts 7 hours. I have tried wiping battery stats etc, and have the screen brightness at 50%. I have read that some kernels can greatly improve battery life, is this true? If so, which would you recommend, and do I just flash it like I would a rom? I am using the latest miui.
Cheers,
Steve
Sent from my HTC Desire using XDA App

They can but finding the underlying app causing the phone not to sleep would be what I'd be looking at. Remove all installed apps and add them 1 at a time and see how the battery goes

EddyOS said:
They can but finding the underlying app causing the phone not to sleep would be what I'd be looking at. Remove all installed apps and add them 1 at a time and see how the battery goes
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Yeah i've tried this, there's nothing draining the battery.

Not at all
Such battery drainage can only be induced by either heavy usage, or phone not being able to go to sleep.
The differences between kernels in custom roms are merely a shades since all of them are pretty much battery efficient. You won't miraculously jump from battery life of 7 hours to 30 hours. Concentrate on your apps or even better, third party Widgets.
Sent from my HTC Desire using Tapatalk

Probably a hardware fault then - the OS on it's own with no apps installed shouldn't drain a battery that quickly. Did you also turn off the sync options to test that theory?
Personally sounds like a knackered battery/phone

If it isn't apps/widgets (they are the culprit for heavy usage) then it would prob be a faulty battery. I did a little test last month to see how much battery I could lose in 24 hours. I lost 8%. I guess it could be a baseline to start off with.

Excessive Battery Drain

My Desire Z has been a battery killer recently. I have tried different radios and roms and it still sucks excessive power. Even on Airplane mode battery monitor widget was giving ~50mah per hour drain with the screen off.
I have both a stock battery and a Mugen 1800ma battery and this seems excessive. I checked and there were no applications keeping the phone awake either. At work with minimal usage my phone easily drains over 30% of the Mugen battery. Signal isn't a problem either because I work 280 metres away from a Bell cell tower and have full signal at work all the time. I'm starting to think that something is wrong with my phone.
Sent from my Transformer TF101 using xda premium

C.Flat said:
I have both a stock battery and a Mugen 1800ma battery
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I had a similar problem with a stock battery of mine and ended up recalling it with my phone provider and they shipped me a new one. They (T-Mobile) said "not all batteries were created equal" and that sometimes even without water-damage, certain batteries lose their shelf-life much faster than others.
Since you're telling us that both your stock and your after-market are draining at a near equal pace regardless, this might be an indicator that it isn't your battery.
I had to return my original G2 to T-Mobile because of hardware malfunctioning in several areas, namely the audio mechanisms. If you're using a relatively new phone, and/or a refurbished phone, I wouldn't be surprised if you are experiencing similar problems.

Omg, recently, mines been really bad too. Trying to get to the bottom of it.
Sent from my Desire Z running @ 2GHZ

xT4Z1N4TRx said:
Omg, recently, mines been really bad too. Trying to get to the bottom of it.
Sent from my Desire Z running @ 2GHZ
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I'm starting to suspect a hardware problem on mine. I don't overclock at all. I've tried different roms, kernels and radios and it hasn't helped...
Sent from my HTC Vision using xda premium

I had fast battery drain too, I switched to the ROM in this thread, and battery life is now AMAZING
use SuperWipeG2(+) and Guhl's EFS GPS fix available here before flashing G-lite

Have you tried calibrating? Charging to full, wiping batt stats, discharging/charging back to full uninterrupted? The link below is a great calibration tool.... very convenient. I wipe stats after every ROM flash and keep an eye on CPU/RAM usage with Watchdog lite. Battery life is always good.
https://market.android.com/details?id=com.nema.batterycalibration&feature=search_result
Sent from my HTC Vision using XDA App

how long does the battery last for aprox in standby and with regular use. if it dies faster then 3days on standby or less then a day with regular use there may be an issue im just wanting to know the time span of your battery....
also i had hardware issues with the g2 too. my radio sucked balls, i couldnt even keep signal in a call longer then 3 seconds and my wifi would just cut out for periods of hours at a time... im wondering if the manufacturing is becoming sloppy and they might be lacking quality control. i admit there is a lot to the phone but simple things like battery quality and signal quality should be checked regularly.
with the g2 i frequently hear things like this, battery, screen failures or behind the screen cracks, unresponsive touch screen and black spots, bad radio signals, color leakage and most commonly issues with the keyboard.

penfold1992 said:
how long does the battery last for aprox in standby and with regular use. if it dies faster then 3days on standby or less then a day with regular use there may be an issue im just wanting to know the time span of your battery....
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Well if battery monitor widget is correct my phone would last 26 hours in airplane mode (36 with my mugen battery) with the screen off (I tested this with almost every user app uninstalled)
Edit:
Considering there was a guy who left his old Hero with CM7 in airplane mode and that it lasted for 30 days before the battery died... I find this quite discouraging
Sent from my HTC Vision using xda premium

Wow. Battery monitor widget is INCREDIBLY innacurate while in airplane mode. I left my phone in it for a good 10 hours and it was still at 100%
Disregard this post... and thread
Sent from my HTC Vision using xda premium

Battery life problem!!!!

My wildfire s battery life is very bad.
When fully charged,the phone works for a long time without even 1% drop but when it goes down to 99% then battery began to discharge quickly.
Is there any way to solve this?

HTC is popular for having low battery life so it can't be blamed but
U can underclock it
Sent from my HTC Wildfire S A510e using xda premium

solution
in my case, I left the phone to discharge and shut off completely. Then, with the last drop of battery juice, I powered it on into CWM recovery and went to advanced -> clear battery stats. Afterwards plug it and charge it to 100% (until the LED turns green), preferably with the phone off.
I know some say it's only a placebo effect, but in my case it makes my 806Mhz overclocked & automatic sync enabled phone to last around 35hours.

You dont want to empty battery in our wfs completely ever
Lition-ion batteries dont like full dischard and they tend to loose juice after that process
Good tip-never discharge your phone so you can't turn him on without charger

My battery life sucks, I think its the quality of HTC batterys, I need to go on eBay and buy a new one
Sent from my HTC_A510c using xda premium

my battery is doing the same, plus it never charges 100%, stops on about 90%, after few hours of charging it gets to about 91

I've never had any real problems with my battery life, but with the CM9 that I'm running as a daily at the moment, it just can hold up a long working day till I get home. Really annoying, but damn I like CM9 to much ! I hope that get's sorted quickly!

aigaming said:
You dont want to empty battery in our wfs completely ever
Lition-ion batteries dont like full dischard and they tend to loose juice after that process
Good tip-never discharge your phone so you can't turn him on without charger
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Agree with that,its quite correct.
Also guys try this...
-HTC checkin service apk...its a bigeest consumer next to wifi,cell,and display...amongst two top ones.
Do following:download rom toolbox or titanium backup or any similar app
here the links https://play.google.com/store/apps/...wxLDEsImNvbS5qcnVtbXkubGliZXJ0eS50b29sYm94Il0.
https://play.google.com/store/apps/...DEsImNvbS5rZXJhbWlkYXMuVGl0YW5pdW1CYWNrdXAiXQ..
with this in app manager find that app...long press on it and choose FREEZE (u can unfreeze it later if you want)...also freeze the maps if not using them...etc...just DO NOT MESS with system apps if you dont know what you are doing.
I prefer Romtoolbox cause its all in one app...you can also wipe your battery stats from there as well...great app for root users...try it out
Hope i helped with giving some of you some ideas what can you do amongst other battery tips im sure you all know by now.
Enjoy

Battery calibration
if you use a custom rom you have to calibrate your battery with néma's battery calibration you can find it on the market .my battery last longer since i did it at any rom instalation

@Fikus011
I freezed those two apps with titanium backup.i wil report later about battery life.
Thanx for the info.
@TheKilLapops
I had already use battery calibration
BTW thanx

TheKilLaPops said:
if you use a custom rom you have to calibrate your battery with néma's battery calibration you can find it on the market .my battery last longer since i did it at any rom instalation
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http://forum.xda-developers.com/showthread.php?t=1445643
Wiping battery stats does NOTHING.

Same battery life!!!!!

My battery is doing the same
Sent from my HTC Wildfire S A510e using xda premium

[Q] horrible battery problem on ONE X

I know there are loads of threads about the HTC ONE X battery but I really could not find a proper answer to my question so im starting a new thread. So I have had my 1X since last thursday, just over a week now and the battery life has been utterly horrible. But the worst thing is that the battery life is getting drastically shorter and shorter every day. Now its unbearable I cant even use the phone. I wonder if it might be because I did not do any 'first time battery charge'?. I just booted the phone instantly instead because honestly I did not know that you had to charge the battery before booting the phone the first time. The first time I started the phone it had just over 40% of battery and I used it until the phone shut off and charged it 100% after that while it was updating to the newest software. Is this perhaps the reason why the battery life is so god damn horrible and even worse than other 1X's?. When I charge the phone 100% it drains 1% of battery or more every minute now just when browsing the menu or the web or just doing nothing but putting the screen on. The screen brightness setting is on automatic and I have tried all kinds of battery savers and now im using juice defender ultimate still the battery life is horrible. I kill and close apps all the time and have nothing running in the background when not using it and I always turn off wifi when not using and I turn off auto sync and all the other battery eating tasks and stuff. Still I cant use the phone. When its 100% charged at about 8:00 in the morning the battery is done for at around 10:30 with moderate use. I cant get more than about 3 hours of on screen time before the battery is finished so basically what should I do? Is this normal?

okini said:
I know there are loads of threads about the HTC ONE X battery but I really could not find a proper answer to my question so im starting a new thread. So I have had my 1X since last thursday, just over a week now and the battery life has been utterly horrible. But the worst thing is that the battery life is getting drastically shorter and shorter every day. Now its unbearable I cant even use the phone. I wonder if it might be because I did not do any 'first time battery charge'?. I just booted the phone instantly instead because honestly I did not know that you had to charge the battery before booting the phone the first time. The first time I started the phone it had just over 40% of battery and I used it until the phone shut off and charged it 100% after that while it was updating to the newest software. Is this perhaps the reason why the battery life is so god damn horrible and even worse than other 1X's?. When I charge the phone 100% it drains 1% of battery or more every minute now just when browsing the menu or the web or just doing nothing but putting the screen on. The screen brightness setting is on automatic and I have tried all kinds of battery savers and now im using juice defender ultimate still the battery life is horrible. I kill and close apps all the time and have nothing running in the background when not using it and I always turn off wifi when not using and I turn off auto sync and all the other battery eating tasks and stuff. Still I cant use the phone. When its 100% charged at about 8:00 in the morning the battery is done for at around 10:30 with moderate use. I cant get more than about 3 hours of on screen time before the battery is finished so basically what should I do? Is this normal?
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I would recommend exchanging it.
Sent from my HTC One X using Tapatalk 2

Agreed, sounds like a faulty battery.
Sent from my LeeDroided HTC One X using XDA

3 hours of on screen time isn't high but it's not abnormal either.

okini said:
So I have had my 1X since last thursday, just over a week now and the battery life has been utterly horrible.
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And if you'd have read the other threads that you said don't apply to you you'd realize that because your phone is still new battery life will improve with more charging cycles. If you expect more than 3 hours on the low-end or five on the absolute high-end of screen on time the One X isn't for you. Because of the non-replaceable battery (which shouldn't be a surprise) a lot of us have auxiliary battery chargers for getting through the day when the phone can't be topped up on AC power. Speaking for myself, the design of the phone is what attracted me to it and the non-replaceable battery is a trade-off I accepted. That might not be a trade-off everyone’s willing to accept and the One X isn't going to win any battery life awards.

Autobrightness seemed to cause my battery to drain. Turned it off and its much better (or seems that way for now)
Sent from my HTC One X using xda premium

Charging your battery when you first get it does absolutely nothing. Wiping battery stats and callibrating also do absolutely nothing.
Sent from my HTC One X using xda premium

Upload few screens of your battery usage so we can see what is causing such drain. I can tell you already now the screen is the main battery drain. A phone can barely survive 4 hours of heavy usage, especially not on automatic brightness.

DJ Set said:
Upload few screens of your battery usage so we can see what is causing such drain. I can tell you already now the screen is the main battery drain. A phone can barely survive 4 hours of heavy usage, especially not on automatic brightness.
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Yeah ill do that, how do I take a screen shot? Powerbutton + homebutton thing doesn't seem to work for me :S. Today for example iv'e charged the phone 3 times and after the 2nd charge I used to phone for 5 hours and 25m until only a few % of the battery was left. I had juice defender ultimate up and running most of the time and screen time was at around a bit over 2 and a half hours. All I did was some web browsing and mostly menu browsing and setting browsing on the phone and some xda developer browsing with the app. No gaming whatsoever. Really horrible battery... such a pity considering how much I love the phone otherwise. Its no problem when im at home connecting it to the computer with the usb cable all the time but when im actually using the phone outdoors its frustrating as sh*t.

It doesn't really matter what you are doing, you will only get around three hours of screen on time.
Sent from my HTC One X using xda premium

Have you tried easy battery saver, started using it on my HOX over 30HRS ago browsing, video calls and still have 33% life left. If it doesn't work I suggest you return for a replacement. Could be factory defect.
Sent from my HTC One X using xda premium

Ibroe said:
Could be factory defect.
Sent from my HTC One X using xda premium
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I reckon it is. My battery lasts me one and a half days to 2 on a stock standard One X.

Ibroe said:
Have you tried easy battery saver, started using it on my HOX over 30HRS ago browsing, video calls and still have 33% life left. If it doesn't work I suggest you return for a replacement. Could be factory defect.
Sent from my HTC One X using xda premium
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Yeah, that was the first one I used, it didn't really help but juicedefender on the other hand helps me squeeze out a bit more battery life
Sent from my HTC One X using XDA

Sounds like a lemon, have it replaced asap. HOX is the only android device I had that gets me through the day w/o charging doing basic stuffs (data always on etc) like what normal people do. I've had sleepless nights last month because my 2-week old GN got pick pocketed battery life for GN in my case was horrible (5 hours).

how do you know if your battery is defective? i'm getting around the same battery life myself :/

This is why unreplaceble batteries suck. I wish I'd bought the s3 instead still though I love the HOX only if the battery was a bit better ffs. Im getting a little bit better battery today but with loads of tweaks, still some 'untweaked' hoxes get better battery lives, still though it seems like there are loads of one x's that have the same issue as I do. Does this mean all one x are different or what?
Sent from my HTC One X using XDA

Here's some pics of my crappy battery performance.
Sent from my HTC One X using XDA

I tried calibrating the battery with a play store application. So far I've seen no improvement but I guess it's to early to say.
Sent from my HTC One X using XDA

okini said:
Here's some pics of my crappy battery performance.
Sent from my HTC One X using XDA
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It its absolutely normal..

Don't use any battery saving app. You battery seems to be normal.
This is my stats.
How you guys getting more than one day .
Sent from my HTC One X using Tapatalk 2

[Q] Bigger Capacity Battery Percentages

Hi!
So, a few weeks ago I purchased the OEM HTC Incredible S battery for my Desire Z (Perfect fit, adds 150mAh capacity).
I did a battery stats reset when I installed the battery, but something strange happens with my battery percentage. It shows 100% remaining for about 2 hours after running on battery, even when making use of the phone. And, when charging, it takes little time to get to 99%, but takes extremely long to reach 100%.
So it seems that the extra capacity isn't being fitted in to the battery stats correctly, it's as if the extra 150mAh hasn't been averaged in to the battery stats, but rather just added to the top at 99%...
Does that make any sense? Am I missing something here?

brettf said:
Hi!
So, a few weeks ago I purchased the OEM HTC Incredible S battery for my Desire Z (Perfect fit, adds 150mAh capacity).
I did a battery stats reset when I installed the battery, but something strange happens with my battery percentage. It shows 100% remaining for about 2 hours after running on battery, even when making use of the phone. And, when charging, it takes little time to get to 99%, but takes extremely long to reach 100%.
So it seems that the extra capacity isn't being fitted in to the battery stats correctly, it's as if the extra 150mAh hasn't been averaged in to the battery stats, but rather just added to the top at 99%...
Does that make any sense? Am I missing something here?
Click to expand...
Click to collapse
It's normal for me..99% is always take much longer (30-45min) to charge compare to 20-50% it's fast
Sent from my Desire Z using xda app-developers app

Do the wipe one more time...then charge and drain about 2 times..it should calibrate properly after that
Sent from my HTC Desire Z using xda premium

That's normal behavior for a new battery, Should have got the Evo 4G Design battery.

strip419 said:
Do the wipe one more time...then charge and drain about 2 times..it should calibrate properly after that
Sent from my HTC Desire Z using xda premium
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Click to collapse
Will try that, Thank you

tarroyo said:
Should have got the Evo 4G Design battery.
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Ah, didn't know those fit! Will keep that in mind