Database Users

I Underestimated This Phone. The Battery Is The 2nd Best Ive Had.

On average I get atleast 15hrs on my G2. I underestimated this phone before even owning it. Coming from a HD2 i can honestly say that this phone is a serious upgrade and powerhouse of a phone. Im still running stock, but i have switched in between the most recent builds to get a feel of things. Training your battery plays a major part of getting the full potential out of your battery. Im not running any task killers, and no battery saving apps. just games and regular apps. I like this phone alot. May have to hold onto it for a lil while, and that means alot since i switch phones almost every other month. CANT WAIT FOR GINGERBREAD!!!!!!!!!!!!
#1 Battery-- Nokia N93
#2 But Not Far Behind-- T-Mobile G2

Yeah I have to say that I agree - battery life (even overclocked to 1.2) with this thing p*sses all over my old Desire. I can actually rely on this baby to get me through my day - a feat which my Desire had to be underclocked to 800mhz and/or run on 2G to achieve.

actually that is one of the things ive been meaning to address, im not a skilled coder by any means but there is a script (made for the heroc) that scales your cpu frequency based off your battery remaining. i have it ported over to the epic (my last phone), and was thinking about porting it to the g2 just wasnt sure yet if there would be any interest in it. on the heroc with cm6 juicedefender and the battery tweak i hit over 49 hours of useage. i will be honest tho, even if i do it it wont be this overnight thing i have a bad case of add when dealing with stuff i work on >.>

shabbypenguin said:
actually that is one of the things ive been meaning to address, im not a skilled coder by any means but there is a script (made for the heroc) that scales your cpu frequency based off your battery remaining. i have it ported over to the epic (my last phone), and was thinking about porting it to the g2 just wasnt sure yet if there would be any interest in it. on the heroc with cm6 juicedefender and the battery tweak i hit over 49 hours of useage. i will be honest tho, even if i do it it wont be this overnight thing i have a bad case of add when dealing with stuff i work on >.>
Click to expand...
Click to collapse
thats sounds interesting! i would like something like that for my g2!

shabbypenguin said:
actually that is one of the things ive been meaning to address, im not a skilled coder by any means but there is a script (made for the heroc) that scales your cpu frequency based off your battery remaining. i have it ported over to the epic (my last phone), and was thinking about porting it to the g2 just wasnt sure yet if there would be any interest in it. on the heroc with cm6 juicedefender and the battery tweak i hit over 49 hours of useage. i will be honest tho, even if i do it it wont be this overnight thing i have a bad case of add when dealing with stuff i work on >.>
Click to expand...
Click to collapse
This can be easily achieved with setcpu by setting up profiles for the battery level. I've hit 2 days using only setcpu on cm6.1.

I love this phone too, but I'm not having as much luck with the battery as you guys seem to be - in particular when I'm connected to 3g on the move. Are you not running sync/sense sync or anything like that? What about htcsense.com services?
Sent from my HTC Vision using XDA App

I have all my widgets sync to manual brightness on zero, and 3g running all day. I could get a day and a half with moderate use. Heavy use I get atleast 9hrs
Sent from my T-Mobile G2 using XDA App

teh problem with using profiles is that it basically has to reach a certain battery level for it to change, and even then setcpu runs as a app (taking up more cpu process) then the script does

I just got 30 hours of use and plugged it in at 8% but of course it was light use.

shabbypenguin said:
teh problem with using profiles is that it basically has to reach a certain battery level for it to change, and even then setcpu runs as a app (taking up more cpu process) then the script does
Click to expand...
Click to collapse
I would def love this. I'm sure a whole lot of us would love it.
HTC Vision S-OFF CM6.1 Stable Oc'd to 1.5ghz on Pershoots Kernel

I get at least 24 hours from my phone most days, with a good amount of use, the only times I have struggled for battery life was when I was playing angry birds for hours at a time trying to 3 star all the levels.

Deadly Issue ;( !! (UPDATE: occurs with the stock kernel)

Hello everyone...
I have 2 issues with my Transformer
the first one is that whenever i leave my Transformer for couple hours it shuts down !! doesn't occur when charging but it does when it's not.. even when the battery is around 80% !! i had this problem with ALL kernels except the stock kernel which i don't wanna use !! also had this problem for around 2 months...
the second one happened today when i left my Transformer "Charged" at 100%.. and after couple of hours i found it shut down but when i powered it on again i found the battery 27% !!
i went to the battery stats and found that battery was decreasing slowly and there was a gap (which means that it turned off) and after the gap it shows the battery low !! it happened within 6 hours !!
Please help me if you can... !! I'm using Revolver ROM 3.9.5 and "Blades Kernel 3" that comes in the Revolver Parts...
UPDATE : The problem occurs with the stock kernel !!

This sounds very familiar to the problem I had with my Galaxy S2 a month ago.
It kept shutting down every few hours, and it was driving me mad. Then one day I uninstalled the app greenpower, and it was fine afterwards. You don't have the greenpower app by any chance? If not, maybe it can be caused by some other app you normally use?

The battery might be hosed. Have you ever let it hit 0 before? A lot of batteries never fully recover after being fully depleted once or twice.

Cernunnoz said:
This sounds very familiar to the problem I had with my Galaxy S2 a month ago.
It kept shutting down every few hours, and it was driving me mad. Then one day I uninstalled the app greenpower, and it was fine afterwards. You don't have the greenpower app by any chance? If not, maybe it can be caused by some other app you normally use?
Click to expand...
Click to collapse
I never heard of this app... Just like i said it doesn't happen with the stock kernel !!
But the reason I'm using other kernels is because i wanna Overclock !!

a.mcdear said:
The battery might be hosed. Have you ever let it hit 0 before? A lot of batteries never fully recover after being fully depleted once or twice.
Click to expand...
Click to collapse
No i never let it hit 0%... but i don't think that the problem is in the battery
However I'll try it and see what happens !

sounds like a silly question but i have seen it alot. Are you charging through a computer(USB) or wall?

It could be related to setCPU and the according profiles. Just recently I saw that my profiles were messed up after updating ROM and kernel. Might be worth a shot.

Reinstall stock kernel Issue #1 fixed.
Issue 2 sounds like charger shut off and left TF on not charging.

You've pretty much explained to yourself why the thing is shutting down.. It works fine on the stock kernel but not one that is letting you overclock.. Sounds to me like you are either overclocking more than it can handle or undervolting to much or both.
I can almost bet that its not shutting down completely and its just going into a state that the screen is off but the OS is hung up, so its not responding to you turning the screen on.. This would explain why the battery seems to be dieing when its sitting idle.
Not sure about it dieing while its plugged in other than maybe a fluke.

I don't wanna use the stock kernel.. it's really slow !!
and i over clock to 1.4 ghz only since i can't overclock more than that because it restarts itself endlessly if i overclocked more than 1.4 ghz !! i undervolted about -25 or -50.. not much !!
Yes i charge it on a wall or anything but NOT on my computer...
How can i change profiles in setcpu ??

xMini said:
No i never let it hit 0%... but i don't think that the problem is in the battery
However I'll try it and see what happens !
Click to expand...
Click to collapse
No no you misunderstood! DONT let the battery hit 0.

First, you need to use more exclamation points !!!!
sounds like you are suffering from deep sleep issues. What rom are you running? also, have you tried running a custom kernel and not overclock it? You have several variables that can be influencing your issues, start isolating what may be causing your problems. the kernel seems the must likely of culprits, I would clear the overclock and install setcpu and run it for a but and see if you can replicate your issue.
Sent from my GT-I9000 using XDA App

Just try the non stock kernel, oc it but dont uv it, not all devices can handle uv, even if it is only a little bit. Even take it back too 1000mhz and try to increase the uv and oc by little bits at a time to see exactly what your transformer can handle. I think its the uv thats causing the problems. Experiment a bit and youll find the sweet spot.

I'm using Revolver ROM and i mentioned that...
I've never undervolted till yestersay.. maybe it caused the second problem
I set the clock speed at 1ghz and i'm waiting to see if anything changes..

Yeah... the problem still occurs even after setting the clock speed at 1ghz and default voltage !! using clemsyn kernel ver 22...

Every device is different. Differences in manufacturing etc. You might have a picky device. Plus these are mobile platforms. No fans, just convection cooling. They are not meant to be tweaked and oc'ed they way we do. The stock kernel is very fast. What is it that you cannot do on the stock kernel that the extreme oc let's you do?
Sent from my DROID X2 using Tapatalk

colonel187 said:
Every device is different. Differences in manufacturing etc. You might have a picky device. Plus these are mobile platforms. No fans, just convection cooling. They are not meant to be tweaked and oc'ed they way we do. The stock kernel is very fast. What is it that you cannot do on the stock kernel that the extreme oc let's you do?
Sent from my DROID X2 using Tapatalk
Click to expand...
Click to collapse
I'm guessing my device is bad and it's Asus' problem ! i tried setting the clock speed at normal 1Ghz but the problem still occurs !! the reason i overclock is that because with the stock kernel i get slower web browsing and slower flash playback and slower overall performance!! however I'm back on the stock kernel to check out if the problem is gone or not...
I doubted my device couple months ago... because I've seen everyone overclock their devices at 1.6 GHz Without any issues !! but when i try to overclock a little bit more than 1.4 GHz it restarts itself endlessly !!

Had the same issue a few months ago. Be prepared to wake up to a dead TF.
I sent it back to ASUS and they replaced main board and battery. Under warranty of course. I suggest you unroot and use a stock rom for now.
Sent from my GT-I9100 using XDA App

ropaisoft said:
Had the same issue a few months ago. Be prepared to wake up to a dead TF.
I sent it back to ASUS and they replaced main board and battery. Under warranty of course. I suggest you unroot and use a stock rom for now.
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
What do you exactly mean by "for now" ??
and how can i even send it to ASUS ??! i don't live in the USA

xMini said:
I'm guessing my device is bad and it's Asus' problem !!!
Click to expand...
Click to collapse
You stated in an earlier post that the problem does not show up in the stock ASUS setup, but only with a custom ROM and Kernel. How does that make it ASUS' problem. If you buy a car that says it runs on 87 octane fuel and you put 100% nitro methane in the tank and it blows up it is not the manufacturers fault.

[ICS] We need your help... Battery life...

Since the beginning of Android one thing has always been an issue with some of the greatest ROMs.
........................Battery life.
Every day lives are drained away by the pleasures and features of such fantastic ROMs... and such things at time seem so hard to bare that we try to change the lives of our battery by going to a different ROM.
So now you have a chance to make a difference, nay, an opportunity to change the lives of many...
This thread is strictly for how to save Battery life. CM9/AOKP have amazing battery life by themselves (but yet can always be made better) But for those on MIUI (Not so great battery life) this will be really useful.
Understand that everyone's device is different and although you may get 15 hours off MIUI/AOKP/CM9 others may only get 4 from them.
Post what it is that helps you achieve maximum Battery life. You may be the one to solve the cure to wowhowdidmybatterylifedroptwentypercentinanhourosis.
Be sure to include:
1. ROM
2. Kernel
3. Tweaks that have been applied through ClockworkMod
4. Apps used to save life
5. What battery you use
6. How long your life lasts
7. Anything else that you think may help

Eclair
Just Eclair
Any Eclair
Shoot me......
But seriously, disabling 3g on ICS saves a ton of battery life.
Sent from my SPH-D700 using Tapatalk 2

marcusant said:
Eclair
Just Eclair
Any Eclair
Shoot me......
But seriously, disabling 3g on ICS saves a ton of battery life.
Sent from my SPH-D700 using Tapatalk 2
Click to expand...
Click to collapse
Uhhh,,,on ANY ROM...but not a practical solution.
I think the OP is looking for more practical solutions where they are not disabling major features of the smartphone.

kennysvgp08 said:
Be sure to include:
1. ROM
2. Kernel
3. Tweaks that have been applied through ClockworkMod
4. Apps used to save life
5. What battery you use
6. How long your life lasts
7. Anything else that you think may help
Click to expand...
Click to collapse
1. CM9, although i think aokp does better.
2. Samurai Kernel, although just about any other ICS kernel should help. The biggest thing that you can change between kernels is the Governor and I/O depending on these two will determine how the CPU runs and in effect will determine battery life. Conservative is just about the best for battery life. If you need slickness and not too worried about battery Ondemand. If you want the best of both worlds i Think Wheatly is a good compromise. Also I/O , Sio is "simple" but VR is flash based so it tends to be the best. Otherwise Noop/Deadline. Also voltage.. undervolting will help limit the amount of well voltage to the CPU. So the lower you can get it the better.
3. Dont have tweaks i apply through CWM but i Run the V6 Supercharger, 3G turbocharger(optional), and the Kick Ass Kernelizer from Zeppelin.
4. I cannot stress this enough, Apps that say they save battery... run... which uses RAM and Resources... meaning its running trying to save you battery, Using battery. Which is stupid... and useless.
5. I have two a 3500Mah and the stock 1.5 year old 1500mah.
6. Typically with 3 hours of display over a period of 15hours (1500 mah) and around 5 hours of display over a period of 22 hours (3500 mah). However this is on wifi, 3g would deduct these a pretty good amount if you have sucky speeds.

He needs to get over it... lol. The only thing that truly saves battery life is managing your connections. There is no magic bullet unfortunately.

PLEASE! Don't tell us to turn off data and never sync the phone. Obviously if you don't use the phone the battery will last forever. I need a phone that can do the following:
Receive emails and texts as they are sent. (I use exchange push)
Last 18 hours on a standard or 1800 mAh battery.
I can just barely make that with stock FC09, I'd love to run ICS but with either CM9 or AOKP I barely make 10 hours.

schnowdapowda said:
He needs to get over it... lol. The only thing that truly saves battery life is managing your connections. There is no magic bullet unfortunately.
Click to expand...
Click to collapse
Why must people post unhelpful comments such as the one above? I don't understand the logic there...
anyways since this was aimed at miui I get pretty good battery life with it... (3.5 hours screen on time) nyan v5 ftw! No special features... uv a lot (won't list my settings cuz every phone is different) and no oc... used to use jd but, it saves more battery if you just switch things off manually... really though until I flashed nyan my battery life was atrocious, but now just about on par with the peoples rom (4.5 to 5 hours screen on time!) Oh yeah, all this with the stock battery...

poit said:
PLEASE! Don't tell us to turn off data and never sync the phone. Obviously if you don't use the phone the battery will last forever. I need a phone that can do the following:
Receive emails and texts as they are sent. (I use exchange push)
Last 18 hours on a standard or 1800 mAh battery.
I can just barely make that with stock FC09, I'd love to run ICS but with either CM9 or AOKP I barely make 10 hours.
Click to expand...
Click to collapse
On aokp with 1800 mAh i can do about 3Hours of screen on time and 15 Hours of battery life and my phone was awake 75% of the time.
Screenie was at 15%
This was stock Everything Except ROM haha

XxLostSoulxX said:
On aokp with 1800 mAh i can do about 3Hours of screen on time and 15 Hours of battery life and my phone was awake 75% of the time.
Screenie was at 15%
This was stock Everything Except ROM haha
Click to expand...
Click to collapse
Think about if your screen was on while the device was awake..your time would be cut in half
Sent from my SPH-D700 using XDA

Oh my good golly gosh.
I just realized the best battery life I ever got was on DK28.
So take that. Let's go Frankenstein.
1. CM9 KANG June 02 build.
2. Stock
3. Services for V6 and Search Key Remap
4. Ha!
5. Stock. Came with device...need new one.
6. Depends on use. But I usually get the estimated six hours consistently.
7. If you're going to use a task killer just use the built in one. Overclocking is bad, and in my experience so is undervolting. GTalk, official Facebook application(especially this. Even with notifications off it still is always going), G+, and more are always running and are a drain. No live wallpapers, and no widgets that require constant updating. As much black as possible. Don't use third-party batteries. Obviously turning off 3G, 4G, sync, and such will dramatically increase your battery life.
WAIT! Why am I writing this? There is a freaking optimization guide. Why does this exist? For ****s sake.

Running AOKP build 36, stock, FC09 modem 15 hours running takes me down to 50% batt hour of screen time, constant crappy wifi connection in an area with crappy cell signal sync for everything but email and g chat is every 2 hours (weather and all that). Big thing to save batt for me was turning down my screen brightness. I was also getting crappy battery life till i let this rom install run the battery down to 5% twice.

flastnoles11 said:
Why must people post unhelpful comments such as the one above? I don't understand the logic there...
anyways since this was aimed at miui I get pretty good battery life with it... (3.5 hours screen on time) nyan v5 ftw! No special features... uv a lot (won't list my settings cuz every phone is different) and no oc... used to use jd but, it saves more battery if you just switch things off manually... really though until I flashed nyan my battery life was atrocious, but now just about on par with the peoples rom (4.5 to 5 hours screen on time!) Oh yeah, all this with the stock battery...
Click to expand...
Click to collapse
By no means was I saying never enable your 3g/4g.. but the fact remains that the single best way to conserve your battery life is to be smart about managing your connections. I.e. not leaving it on ALL day and to only turn sync on when your actually checking your e-mail.. be that through an app like juice defender or manually toggling. If that's not more helpful than what you posted (UV a lot and don't overclock??? Duh.) than my bad bro!

darkierawr said:
Oh my good golly gosh.
I just realized the best battery life I ever got was on DK28.
So take that. Let's go Frankenstein.
Click to expand...
Click to collapse
Something we can all get behind here... I remember I used to get 24+ hours on froyo w/o customs kernels. Le sigh..

ÜBER™ put's it pretty well.
ÜBER™ said:
1. CM9, although i think aokp does better.
Click to expand...
Click to collapse
-CM9 still seems cleaner, but AOKP seems better.
ÜBER™ said:
2. Samurai Kernel, although just about any other ICS kernel should help. The biggest thing that you can change between kernels is the Governor and I/O depending on these two will determine how the CPU runs and in effect will determine battery life. Conservative is just about the best for battery life. If you need slickness and not too worried about battery Ondemand. If you want the best of both worlds i Think Wheatly is a good compromise. Also I/O , Sio is "simple" but VR is flash based so it tends to be the best. Otherwise Noop/Deadline. Also voltage.. undervolting will help limit the amount of well voltage to the CPU. So the lower you can get it the better.
Click to expand...
Click to collapse
-Spot on.
ÜBER™ said:
3. Dont have tweaks i apply through CWM but i Run the V6 Supercharger, 3G turbocharger(optional), and the Kick Ass Kernelizer from Zeppelin.
Click to expand...
Click to collapse
-I don't use the supercharger, but I do apply the same oom ram mods. These help close unused apps when they exceed the applied limit. Based on my experience, it's kept apps under control.
ÜBER™ said:
4. I cannot stress this enough, Apps that say they save battery... run... which uses RAM and Resources... meaning its running trying to save you battery, Using battery. Which is stupid... and useless.
Click to expand...
Click to collapse
-THIS +9000! An app that spends all of it's time stopping other apps is wasting just as much "battery." I maintain, Advanced Task Killer, with NO, I repeat NO AUTOKILL. Set a widget on your home page, tap it occasionally to make sure everything is closed. Same effect as the built in task manager, but one single convenient tap.
ÜBER™ said:
5. I have two a 3500Mah and the stock 1.5 year old 1500mah.
Click to expand...
Click to collapse
-I use two stock 1500mah batteries and one 3500mah. My wife has the same. All are about 1.5 years old now.
ÜBER™ said:
6. Typically with 3 hours of display over a period of 15hours (1500 mah) and around 5 hours of display over a period of 22 hours (3500 mah). However this is on wifi, 3g would deduct these a pretty good amount if you have sucky speeds.
Click to expand...
Click to collapse
-These numbers are pretty much the same for me. I almost always average 3 hours display on the stock battery between games and internet. 5-6 hours on the 3500, but I'm pretty sure it's not reaaallly the 3500mah it claims to be... . I NEVER turn off wifi or 3G, but google autosync is off until I edit my contacts.

schnowdapowda said:
By no means was I saying never enable your 3g/4g.. but the fact remains that the single best way to conserve your battery life is to be smart about managing your connections. I.e. not leaving it on ALL day and to only turn sync on when your actually checking your e-mail.. be that through an app like juice defender or manually toggling. If that's not more helpful than what you posted (UV a lot and don't overclock??? Duh.) then my bad bro!
Click to expand...
Click to collapse
I don't turn off my connections at all and get great battery life... and seens how the op states don't say anything about disabling 3g or anything id say your comment was the least helpful on the thread... but at least you tried... don't get into a battle of witts with me, I'm afraid your unarmed...

flastnoles11 said:
I don't turn off my connections at all and get great battery life... and seens how the op states don't say anything about disabling 3g or anything id say your comment was the least helpful on the thread... but at least you tried... don't get into a battle of witts with me, I'm afraid your unarmed...
Click to expand...
Click to collapse
Firstly, I'm not trying to get into a pissing match with you. Its pointless. Secondly, the op makes no mention whatsoever of connection status. Thirdly, while you might get decent battery life w/o doing it.. I guarantee you'd do better if you did. Straight facts.
Edit: I am armed. With a small slide out keyboard.

Please follow the format specified by the OP. List the 7 items. Bickering in this thread will not be tolerated.
Thank you for your cooperation
Friendly Neighborhood Moderator
Sent from my PantechP4100 using xda premium

kennysvgp08 said:
Be sure to include:
1. ROM
2. Kernel
3. Tweaks that have been applied through ClockworkMod
4. Apps used to save life
5. What battery you use
6. How long your life lasts
7. Anything else that you think may help
Click to expand...
Click to collapse
1. CM9
2.ShadowKernel (I find nyan colonel to be a little more draining) SIO, conservative
3. None
4.System Tuner Pro configured to UV, under clock to 400mhz on screen off, to close apps that don't automatically restart themselves, configure "auto-kill" so its not as aggressive with killing apps that just stay on, and a few sysctrl edits that I honestly don't think make a difference.
5.stock epic 1500 mAh, my sprint store wouldn't give me an sgsII battery
6. 12-18 hrs depending on use, though it has definitely drained quicker
7.be easy on data! (There kennyG) turn off wifi when your not near your networks, turn off mobile data, Bluetooth, and autosync when your not needing it. (Unless you absolutely need PUSH email for your job or whatever though honestly as far as my job goes if its important enough for me to need the message immediately they will simply dial my phone number. Yeah I'm old fashioned.

- Cm9
- Shadow kernel
- No tweaks
-1800 D710 battery
- I get 15-20 hours depending on how much music I stream during the day.
- I got the biggest boost by using the profiles in CM9 to optimize my connections and syncing depending on where I'm at during the day. I have Wifi at work and home, so I have it toggle my data off during that time period and vice versa when I'm mobile.
Sent from my SPH-D700 using xda premium

Using AOKP with shadow kernel.
Best thing I did to help with battery life was to turn off all notification options in the FB app. And I set haxsync to download photos only when plugged in.
sent from a secret underground bunker

Atrix tends to run hot quickly

I'm running CM 7.2.0 with faux's 1GHz 0.2.4 kernel underclocked to 912 MHz (though I've had this with all CM roms and kernels) and after more than a minute of screen time my Atrix's CPU tends to exceed 50 degrees Celsius while the battery gets to around 40 degrees Celsius (this is recorded using setCPU). This happens most with apps like BaconReader or Facebook but has happened with others too.
I refuse to play games on my phone because it seems to nearly overheat while I'm playing any game.
When the phone starts to get hot, the battery drains faster (like 1% every 2-3 minutes).
Is there something I can do to fix this, or is this a common problem that I shouldn't mind?
Has anyone else experienced similar temperature issues?

Indeed my friend, its the Tegra 2 chipset, in fact, most of nVidia hardware tend to overheat, including Tegra 3 and PC/Laptops Video Hardware.

djluis48 said:
Indeed my friend, its the Tegra 2 chipset, in fact, most of nVidia hardware tend to overheat, including Tegra 3 and PC/Laptops Video Hardware.
Click to expand...
Click to collapse
Never had an overheating problem without a rogue app on my Atrix. Get BetterBatteryStats and CpuSpy and see what's keeping your phone awake/running.

Crap phone, nothing you can do about it.

Atrix_Owner said:
Crap phone, nothing you can do about it.
Click to expand...
Click to collapse
Someone is very dissapointed with its phone. :cyclops:

Atrix_Owner said:
Crap phone, nothing you can do about it.
Click to expand...
Click to collapse
Get a life.
Nothing wrong with our phones except moto's traditional neglect.
OP, try going back to stock. I find I've got heat issues with custom kernels too..
Sent from my MB860 using Tapatalk 2

Probably you have some rogue apps running in the background. You could try the GSAM battery monitor. It shows which app using the most battery and waking your phone.

It is getting hot because it is under a load. Not the phones fault. It is something you added. I had a "bad" app that looped and kept trying to write to cache. I couldn't figure it out till I used logcat. This phone still kicks ass, even if it does have Tegra II.
Also, BetterBatteryStats is free to xda users.
http://forum.xda-developers.com/showthread.php?t=1179809

I would look into an kernal change if nothing else works. This has helped in the past for me

MXIIA said:
I'm running CM 7.2.0 with faux's 1GHz 0.2.4 kernel underclocked to 912 MHz (though I've had this with all CM roms and kernels) and after more than a minute of screen time my Atrix's CPU tends to exceed 50 degrees Celsius while the battery gets to around 40 degrees Celsius (this is recorded using setCPU). This happens most with apps like BaconReader or Facebook but has happened with others too.
I refuse to play games on my phone because it seems to nearly overheat while I'm playing any game.
When the phone starts to get hot, the battery drains faster (like 1% every 2-3 minutes).
Is there something I can do to fix this, or is this a common problem that I shouldn't mind?
Has anyone else experienced similar temperature issues?
Click to expand...
Click to collapse
i know exactly what you're talking about, i jumped around all them roms based off of CM7 and CM9, tried different kernels, I did like Clemsyn's 1.0GHz enhanced kernel. In the end, try the rom in my sig, its based off CM7.2 stable, i **** you not my friend, first time ever I have enjoyed more than 24 hours of phone use on a single battery charge, phone never gets anywhere remotely close to being as hot as it used to, something about this build, i dont know but my battery lasts now and phone doesn't cook in my pocket after a phone call, check out log i have of how much battery life I got from 1 full charge
try flashing Jug's battery fix through CWM, it slows down the drain of the battery to a noticeable level where you can see it really does work and helps keep the battery from being pissed away after 2 phone calls

This is happening to me as well and only with this Rom have I had this issue. I guess I'll try changing roms and see if that fixes things.

i am using epsilon project v5 and problem solved
remember to fix permission
Sent from my MB860 using xda premium

Reason for bad Battery life, sticky 1026MHz?!

So since I had my nexus 4, I had to complain about its terrible battery life.
I would never get more than 3h of screen on time, despite my best efforts in conserving battery. Even with the phone in flight mode and on Wifi, I could not cross 3h give or take a few minutes. I even tried disabling location, google now, sync and everything else.
It was deep-sleeping nice, while the screen was off, standby time was awesome for me. If I turned it on though, it started to burn through battery insanely quick. So I started monitoring the frequency states with battery spy, and noticed that as if there was a little load, it spiked to 1026MHz and then stayed there for about three seconds every time before falling back to 386 MHz. So I tried setting the max cpufreq to 916Mhz with CPU tuner, and was astonished to find out, that immediately after the load was done, it went back to the lowest frequency. Like it should be, not hanging for multiple seconds on the high step.
Also, If I start CPU tuner, the min freq is always shown as 1026MHz. So I changed min to 386 and max to 916. Afterwards, this stays until I swipe cpu tuner away from the recent apps list. If I start it again, the settings revert. Strange...
With my cpu limited to 916MHz, I get about 5h and 50 min of screen on time without any other measures. Location on, Wifi on, Google now and sync all active. If I just go one step higher and set my max frequency to 1026, the old behavior starts again, and screen time drops to 3h because it seems to be stuck on that freq. Therefore I would like everybody who also has bad screen time to try that out and report back.
I don't really understand why it would take so long to drop back from the 1GHz step, and drop back immediately from the 0,9GHz step?
Of course, this is with normal surfing via chrome, or using normal apps that are not that much CPU intensive. Also, you hardly notice the performance limitation without playing games. There probably is an easy way to fix this?
Feedback would be appreciated. Maybe I see this wrong...
Thanks
tl;dr : if screen on, for me only 1026mhz is used, if max freq is set to anything lower, the phone spends most of the time at the lowest step 386mhz, greatly increasing screen time for me.

Flash Franco Kernel and buy the app and you'll be set.
Sent from my Nexus 4 using xda app-developers app

NoLunchBox_ said:
Flash Franco Kernel and buy the app and you'll be set.
Sent from my Nexus 4 using xda app-developers app
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Maybe, but I really first wanted to examine out of the box behavior

This is caused by qualcoms Mpdecision which ramps up the cpu to 1ghz on screen on and touches. All in the name of speed. It's basically a hot plugging technique such that smoothness is guaranteed under loaded gui transitions and scrolling. Before this you would have to wait for the cpu to be loaded for it to ramp up speed. Now the OS can demand speed.
You can see in Franco kernel he replaced Mpdecision with an open source alternative and swapped the lowest cpu speed to 368mhz. Then added a load step of 768mhz (for 60% loads). This actually added a bit of lag but should be better in the battery department. Some more tweaking to be done though.
Qualcoms thermald is what is causing thermal throttling.
Edit: this could be wrong. But I think I'm in the general area of what's going on...
Sent from my Nexus 4 using xda premium

This does sound logical, but why the hell waste nearly half of the possible screen time on "perfect smoothness" when even if limited to 0,9ghz everything runs pretty amazing... I will look into francos kernel, even though I dont like to buy an app to tune it,

ArRaY92 said:
This does sound logical, but why the hell waste nearly half of the possible screen time on "perfect smoothness" when even if limited to 0,9ghz everything runs pretty amazing... I will look into francos kernel, even though I dont like to buy an app to tune it,
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You don't have to buy an app, everything can be set through scripts. The app just automates the process, allows you to back up kernels, download the latest nightly and milestone (when one becomes available). It's really worth the investment, plus you're helping out a great Dev who has shared his awesome work with us for a long time.
Sent from my Nexus 4 using Tapatalk 2

I like my phone to sleep. I bumped it down to 384!
No need to keep it @ the 1.026, it will pretty much kill battery! Makes no sense to me.
Sent from my Nexus 4 using Tapatalk 2

You can set the max to 384 mhz.. and still everything is smooth

Can I use SetCPU or is that app defunt now? And to change my CPU speeds can that be done on a phone that's simply rooted or do I need a custom kernel?
EDIT: I downloaded CPU tuner, but I'm not sure if it's working or not. Does it work w/ stock kernel or no?

Faux's Intellidemand fixes pretty much what you're describing. Since mpdecision is not used instead of fauxs alternative.
Sent from my Nexus 4

What is max frequency by default?

Have to say firstly, that the perfect smoothness of this phone is what has sold me on it as the camera is well below average, it has some bugs and the output quality and volume of the audio is shocking, but it is the single smoothest phone out there.
Get rid of what I came to know as Touchboost (feature brought in in jelly bean to introduce the lag free experience of project butter I imagine) from my Sgs3 days, and the phone becomes as laggy as every other android phone out there.
Secondly, I get around 3.5 hours screen on time, without messing about, wifi on constant, depending on whether i'm on the net or not, I can get more.
I find AOKP perfect as its super fast and battery is excellent.
Franko kernel works, but the phone then feels choppy. Setting the cores to 1ghz makes the phone laggy also.
All I can say is, get lots of chargers, I have two at home, two at work, one in the car, one at the other halfs, and it's trickle charging when and if I can and I never worry about battery anyway. I find it wastes far too much life.
Good luck.

biffsmash said:
Have to say firstly, that the perfect smoothness of this phone is what has sold me on it as the camera is well below average, it has some bugs and the output quality and volume of the audio is shocking, but it is the single smoothest phone out there.
Get rid of what I came to know as Touchboost (feature brought in in jelly bean to introduce the lag free experience of project butter I imagine) from my Sgs3 days, and the phone becomes as laggy as every other android phone out there.
Secondly, I get around 3.5 hours screen on time, without messing about, wifi on constant, depending on whether i'm on the net or not, I can get more.
I find AOKP perfect as its super fast and battery is excellent.
Franko kernel works, but the phone then feels choppy. Setting the cores to 1ghz makes the phone laggy also.
All I can say is, get lots of chargers, I have two at home, two at work, one in the car, one at the other halfs, and it's trickle charging when and if I can and I never worry about battery anyway. I find it wastes far too much life.
Good luck.
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Click to collapse
Thank you for not contributing to this thread with that useless comment. The rest of us may not want to charge the phone 1500 times a day (or are even able to), and are looking for ways to help battery discharge go slower while using the phone. If you're fine with charging your phone nonstop, then what are you doing in this thread? Everyone knows you can buy many chargers, that's not a solution.

ksc6000 said:
Thank you for not contributing to this thread with that useless comment. The rest of us may not want to charge the phone 1500 times a day (or are even able to), and are looking for ways to help battery discharge go slower while using the phone. If you're fine with charging your phone nonstop, then what are you doing in this thread? Everyone knows you can buy many chargers, that's not a solution.
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Welcome to Project Butter. If you want to do something different than Google's goals for UI smoothness and responsiveness, which is what everyone has been complaining about in Android vs iOS, then you'll have to go the custom ROM/kernel route. Thankfully that is easily available to you on this hardware and software platform. Me? I like the N4 just fine the way it is stock.

[hfm] said:
Welcome to Project Butter. If you want to do something different than Google's goals for UI smoothness and responsiveness, which is what everyone has been complaining about in Android vs iOS, then you'll have to go the custom ROM/kernel route. Thankfully that is easily available to you on this hardware and software platform. Me? I like the N4 just fine the way it is stock.
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Dude, this has nothing to do with googles project, but instead with Qualcomms responsivness "fix". Please read the answer to my inital post, and you will understand. Also, the phone does in no way feel choppy if you restict it to .9ghz. Except if you load it so much, that it cant cope with this max frequency. But then again, this is not the issue, but the issue is, that 1026 stays active for to long, so that it burns through your battery. There would be only a small change needed to change this behavior, and "possibly" loosing about a fraction of a second of responsivness, that most of the time you wouldnt even notice... Everybody who tells me he is happy with barely 3h of screen time or even less is just the android equivalent of an isheep, because this is in no way acceptable.

ArRaY92 said:
Dude, this has nothing to do with googles project, but instead with Qualcomms responsivness "fix". Please read the answer to my inital post, and you will understand. Also, the phone does in no way feel choppy if you restict it to .9ghz. Except if you load it so much, that it cant cope with this max frequency. But then again, this is not the issue, but the issue is, that 1026 stays active for to long, so that it burns through your battery. There would be only a small change needed to change this behavior, and "possibly" loosing about a fraction of a second of responsivness, that most of the time you wouldnt even notice... Everybody who tells me he is happy with barely 3h of screen time or even less is just the android equivalent of an isheep, because this is in no way acceptable.
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I'm getting around 4-5. Auto brightness, 1 Gmail push, 1 touchdown push, Google now on, HD widgets weather, greader pro syncing, falcon pro syncing, all location services on (I like the monthly reports). Wi-Fi when I can.

[hfm] said:
I'm getting around 4-5. Auto brightness, 1 Gmail push, 1 touchdown push, Google now on, HD widgets weather, greader pro syncing, falcon pro syncing, all location services on (I like the monthly reports). Wi-Fi when I can.
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What kernel are u using? Im using franco kernel + latest CM 10.1 nightly.

My min CPU speed is 1 GHz and in still getting 4 hours on screen time though. I don't think setting my min at 384 MHz even made much difference in my battery, will try it again soon.
Sent from my Nexus 4 using xda premium

droyd4life said:
What kernel are u using? Im using franco kernel + latest CM 10.1 nightly.
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Stock never rooted bootloader still locked.

If you are getting bad battery... simply flash a custom kernel. You get to keep your stock ROM or whatever but you will get substantial benefits. I prefer Trinity Kernel. Only the second or third update on this kernel and now the phone has made huge gains in battery life. Like hfm, I good on screen time... usually 5-5.5. I have auto brightness on, mobile on 100% of the time, and all Google services synced including books, gmail, currents, google now, etc etc. I have locations on, gps on... everything. Sometimes I turn off NFC because I rarely am somewhere where I can use those cool RFID card scanners. What sucks battery is probably a problem in Android 4.2. The phone does not sleep as much as it should. Go ahead and turn all your sync stuff off and keep the screen on static and let the battery die at stock clock speeds. Probably will get at least 5 hours with auto-brightness on. My phone probably sleeps 60% of the time now according to CPU spy when it sits idle in my car for my 8-10 hour work day. I usually get to the car with a bunch of emails, a text or two waiting for me, and the phone has only been asleep the aforementioned 60% and around 90-91% battery life. On a new phone, starting from full charge, this should be at least 95%. My N10 that doesn't have mobile data, only loses about 1% overnight. Apples to oranges but still. I'm convinced that stock voltages on this device are too high, and that Qualcomm did not give Google the latest drivers... maybe because it's not releasable to AOSP as of yet. I really don't know, but it's gotta be something buggy. This SoC is capable of doing better... and it does in the Optimus G and even with sense, 1080p screen, and a 100mah smaller battery the HTC Droid DNA/Butterfly gets 3.5-4 hours stock screen time. None of the other phones using the S4 Pro are running 4.2. I'm hoping either Qualcomm pulls a Samsung and releases some updated drivers/firmware that Google can incorporate or that Google fixes whatever bugs they may have not worked out. In the next calendar year other phones will be out that use the S4 Pro and 4.2 and I doubt Qualcomm wants to lose the luster it earned with the regular S4 Kraits performance/efficiency. When 4.2 comes to other devices we will probably know whether or not Google is to blame for this or that the Nexus 4 is just a poor performer.