Database Info

The search for decent battery life.

I know I know that disabling data can get me 24-30+ hours of battery life. However for my on the go lifestyle, that's just not possible. I depend on my phone to keep my email updated. I have four email accounts (two of which are exchange) that sync calendars and contacts as well as email. I was using push on my two exchange accounts, but I've changed that to do every hour for one and every 15 minutes for the other. my other emails are set to check every hour. I have craigslist notifications set to check a single time per day. I have a weather widget that is only supposed to check every 4 hours.
I am running Perception 10.2 with the latest firebird 2 kernel, but have also tried various versions of speedmod's kernel. I have tried the following modems
JL1, JL2, JL3, JK4, KP1.
No matter what I cannot seem to get more then about 10 hours of battery life on standby ONLY. no phone calls, no turning the display on, nothing. I consistently get around 1 hour of time per 10% drain on my battery. I'm not asking for miracles. I just want my phone to be able to last at least 12 hours (a full work day plus drive time.)
I've already set the programs with the most spartan settings I am willing to use. I'd rather have my phone pushing data to my much more often, but I understand that's not going to be possible unless I can find a drastic increase in my battery life. What else can I do?

I have 3 email push accounts, and google voice syncing all the time. Email includes emails with attachments too, and EDGE is pretty much sufficient for most of these things. Even for normal day to day activities like browsing XDA, EDGE is pretty much sufficient.
So I would advise u to switch from 3G to EDGE. U can turn on 3G when u need more bandwidth demanding apps. This would reduce some strain on ur battery.
Only downside would be that u can't browse n talk on phone at the same time. But its ok by me to get a few mails after the call I am on is over. I can live with this small inconvinience in leiu of the additional battery gain.
As of this minute, with the configuration I have in my signature (am using xcal kernel), I have like 63% battery left after ~7.15 hours standby, with 1h31m of display on and 40m of calls, alongside mails being pushed.
Edit: At the end of my 'normal' day with 'moderate' usage (1-1.5 hours calls and 1.5-2 hour display being on (not for games/movies, but with active data transfer on like texting), I reach home with ~50-60% battery left.
On a side note: I would recommend to turn off updates in weather widget, and use a manual refresh when needed.

how do you easily toggle between 2G/3G? it's my understanding you have to use service menus to access the change.

asrrin29 said:
how do you easily toggle between 2G/3G? it's my understanding you have to use service menus to access the change.
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If u r on the ROM I am using, u can get it in network settings.
Some 2.2.1 ROMs do not have it in network settings. If ur ROM doesn't have it, u would need to access through the service mode code "*#*#197328640#*#*.
When in service mode, here is the sequence to select in the options:
option 1
option 8
option 4
option 3
Note: Pressing 'back' key will NOT take u back. It will close the service menu. Press the 'menu' key, and select 'back' to go back.
Be warned, this would not stick on reboot. U would need to repeat these steps whenever u reboot.
Alternately, I would suggest u move to a ROM that supports EDGE/3G switch. If the ROM supports this option in network settings, it would stick on rebooting too.

Yeah, I just found that. Perception supports switching, but you have to go to the settings menu to do it. I found something called Juice defender, and will play around with that as well. Unfortunately we aren't on an ASOP build, so we can't auto toggle 2G/3G, have to do it from the menu. I will report and let you know what I find!

asrrin29 said:
Yeah, I just found that. Perception supports switching, but you have to go to the settings menu to do it. I found something called Juice defender, and will play around with that as well. Unfortunately we aren't on an ASOP build, so we can't auto toggle 2G/3G, have to do it from the menu. I will report and let you know what I find!
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Sure. By the way, I don't use any apps like juice defender. Realized that my battery is well off without them by taking care of little things like turning off wifi and bluetooth when not using them (well, these are the only two things I take care of manually).

I would normally agree with you, but as I was looking through the app I saw that it actually disables data while the phone is off, and only turns it on temporarily at intervals to allow application updates. If it truly works just like it states, I could have essentially a battery experience similar to turning off data while still enjoying my notifications. More experimentation is necessary.

asrrin29 said:
I would normally agree with you, but as I was looking through the app I saw that it actually disables data while the phone is off, and only turns it on temporarily at intervals to allow application updates. If it truly works just like it states, I could have essentially a battery experience similar to turning off data while still enjoying my notifications. More experimentation is necessary.
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Juice Defender gives me 60 to 70 % more battery life. I have it set to sync every 15min and wifi is location based.

Yeah, Juice Defender works absolute wonders! it gives me the same amount of battery savings that switching to 2G gave me, but automatically enables and disables itself when I need it. I'm on 70% battery left with over 7 hours off the charger, and that was taking voice calls and doing some light email checking!

Try a kernel that supports OC/UV. You don't have to overclock, but undervolting is what you want. Check out Suckerpunch kernel. Nice guide by shaolin. Can't argue against a black belt. lol.

xdahgary said:
Try a kernel that supports OC/UV. You don't have to overclock, but undervolting is what you want. Check out Suckerpunch kernel. Nice guide by shaolin. Can't argue against a black belt. lol.
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Unless I can only have it underclock while I'm not using it, I think I'll pass. I bought the Captivate for it's 1GHz proc, if I wanted something slower I would have gotten the aria.

You misunderstand. It's undervolt. That means use less power at different processing states.

xdahgary said:
You misunderstand. It's undervolt. That means use less power at different processing states.
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you can undervolt a proc without underclocking it? How is this possible, unless they changed the FSB or timings on the chip?

I pretty sure you can use voltage control and set highest state at 1000mhz and set lower voltages for states below it. That's as techincal I'm going to get.

asrrin29 said:
you can undervolt a proc without underclocking it? How is this possible, unless they changed the FSB or timings on the chip?
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By running the chip slightly out of spec.
You can usually undervolt each cpu step by 50 to 150 mV. How to find the right point really does just take trial and error. And as with all overclocking/underclocking your mileage may vary. Some phones can really be pushed to the limits and run fine, others don't like even the slightest changes to the stock settings. All depends on how well your phone was put together, and from where in the wafer your CPU was taken from.
Undervolting can save you a fair bit of battery though. Won't help a whole lot when you're actually using the phone (since the screen and 3G/WiFi radios will suck way more power than the CPU), but it will help seriously increase your standby time.
PS While undervolting and overclocking capable kernels tend to be one and the same (since the underlying code is related) you DO NOT need to overclock your phone to undervolt the CPU. You can run your CPU at stock 1 GHz while still undervolting each frequency step. Course, with some tweaking and good luck, you can even get your phone to run at 1.2 or 1.3 GHz while still using no more power than a stock phone at 1 GHz.

How much battery gets used when the phone constantly switches between EDGE and 3G? I'm curious because my building has thick walls and my 3G signal constantly drops down to EDGE when I pick it up, then goes back to 3G when I leave it sitting out on my desk.

Shammyh said:
By running the chip slightly out of spec.
You can usually undervolt each cpu step by 50 to 150 mV. How to find the right point really does just take trial and error. And as with all overclocking/underclocking your mileage may vary. Some phones can really be pushed to the limits and run fine, others don't like even the slightest changes to the stock settings. All depends on how well your phone was put together, and from where in the wafer your CPU was taken from.
Undervolting can save you a fair bit of battery though. Won't help a whole lot when you're actually using the phone (since the screen and 3G/WiFi radios will suck way more power than the CPU), but it will help seriously increase your standby time.
PS While undervolting and overclocking capable kernels tend to be one and the same (since the underlying code is related) you DO NOT need to overclock your phone to undervolt the CPU. You can run your CPU at stock 1 GHz while still undervolting each frequency step. Course, with some tweaking and good luck, you can even get your phone to run at 1.2 or 1.3 GHz while still using no more power than a stock phone at 1 GHz.
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Click to collapse
Thank you for being the geek.

clydethecash said:
How much battery gets used when the phone constantly switches between EDGE and 3G? I'm curious because my building has thick walls and my 3G signal constantly drops down to EDGE when I pick it up, then goes back to 3G when I leave it sitting out on my desk.
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Any time your phone is forced to switch from 3G to Edge, or even from one band to another, it's not a good sign for your battery. Exactly how much power difference? Grab a multimeter and hook it up between your phone and battery. Record some data, and test for statistical significance. And let us all know.
Short of that, I'd say if you spend a lot of your day in an area with known bad coverage, I would hop into the engineering mode (*#*#0011#*#*), and lock your phone to a specific band and radio mode. Like 850 MHz EDGE, or 850 MHz W-CDMA. Or if you are in an 1900 area, then 1900 EDGE/W-CDMA. Not just EDGE or 3G mode, but a specific band AND radio mode. You need to be smart, and pick the band that has the best coverage so you don't make life even harder on your radio, but it can save some battery life over the phone jumping around ever time you walk from one side of the room to the other.

i running paragon 5.1 rom with the 1280mhz kernel overclocked to 1280 and undervolted. my phone has been unplugged since 7:30 am eastern time it is now 8:04 pm eastern and i have 73% battery left lol. i have done everything today on the web screwing around with my phone. the best rom so far and im even overclocked.

nate25 said:
i running paragon 5.1 rom with the 1280mhz kernel overclocked to 1280 and undervolted. my phone has been unplugged since 7:30 am eastern time it is now 8:04 pm eastern and i have 73% battery left lol. i have done everything today on the web screwing around with my phone. the best rom so far and im even overclocked.
Click to expand...
Click to collapse
Post usage stats please, like how long display been on, time spent on calls, etc.
Btw, does this ROM allow switching between 2G and 3G in the mobile network settings menu.

What does the 1.5ghz overclock do to the battery?

Meaning, does the battery life take a dip when you overclock to 1.5ghz. Does it get any hotter? Is heat an issue at all on this thing? Also, any performance or battery changes from installing the tiamet kernel itself? I'm in the wifi xoom btw.

Strangely enough battery life seems to be about the same. Heat has not been an issue mainly due to having the dual core, however its something you always want to keep an eye on.

Battery life is affected most by the screen. Screen> Network connections > CPU > RAM
There was a thread that someone made a while back about the things that affected battery life the most. If I can find It ill send it your way. After seeing the charts I figured Id try changing some settings.
things I did:
1. Set my max cpu freq to 1.19 min to 488 same for all my cpu tunner profiles ( I wanted to have my phone running the same all the time)
2. Lower'd my screen settings. I didnt need a pocket flashlight EVERYTIME I unlocked my phone.
3. Turned off un needed network connections. Its not hard to turn them back on when you need them.
4. I then looked for things that were running but were not needed by anything ( google maps are used by a few apps so dont disable it haha) I used Uninstaller for root users to get rid of some things.
After all these steps my battery life went WAY up. I have been doing the same thing on my Xoom now and my batt lasts the same at 1.5 as it did at 1.

I still get VERY respectable battery life at 1.5ghz, I can easily get through the day with normal usage. Yesterday night in fact, I left the house with maybe 75% battery life, used my tablet quite a lot throughout the evening(left the house around 9, went to sleep around 1am) and used it all morning basically constantly from 7am to around noon and came home with 9% battery left.

No problems here either. Woke up around 8:30 yesterday and used it all day sometimes pretty heavy. Finally had to plug it in around 6:30. I'm home all day with a broken hip and femur, so I've been putting it through the paces. Running @ 1.5ghz with interactive gov.
Chris

+1 on 1.5GHz having little effect on battery life. I didn't have to change anything else, either.

thats all great to hear! I suppose ill start looking into rooting my wifi xoom tomorrow then. Thanks for the help!

Im very happy with the battery life on this thing. I expected 4 hours max after a few weeks of use/charges. I never thought that it would keep up with anything Apple, Lets face it.. Apple knows how to make stuff run forever. But I was plesently suprised. Xoom +1000

yeah, the battery is good, but i won't know any damage to the cpu when overclocked ?

I wouldn't worry about any CPU damage- too many people have reported success (and no reports of failure).

Anyone else notice with the tiamat kernel that their xoom becomes very unstable overclocked at 1.5 using setCPU? Mine was essentially a soft brick at 1.5 constant rebooting and never able get pass the unlock screen, I had to rewipe with bootloader. I can do 1.2 no problem but don't even want to try going higher.

All of our chips have variations, so the overclock isn't universally guaranteed. That being said, I've been using the Tiamat kernel @1.5GHz since it was released with no problems.

Should have stated that mine is the wifi model, but yea thanks for info.

Here was that post I was looking for on this stuff. http://forum.xda-developers.com/forumdisplay.php?f=946

Best combos for best battery life

What have we accomplished so far? List your personal running kernel/ROM combos that you are using for the best (and tested) battery life. Let others benefit from your experiences! Thanks!

Das bamf and drods 1.8 bfs kernel set at 1.45. Usually get around 15ish hours with moderate use.
Sent from my ADR6400L using XDA App

Fyretech rom with imoseyon kernel 1.92 dialed down to 1.792, setcpu, atk. Today is the first day running this combo phone has been on since 7am, moderate use (phone calls, texts, games, internet and youtube,) its 10pm now and i have 39% left on battery. I would have had to charge my phone at least once today when it was new out of the box.
EDIT: using 3g, 4g not available yet in central Jersey.

I'm using the bamf v4.3a kernel with the stock rom. i'm also using setcpu set for the 'ondemand' governor and a profile that underclocks the cpu to 245/245mhz when the screen is off.

BAMF 1.4 sense remix, with adrenaline (spelling? 4.4.2 kernel, dark horse theme, auto rotate Rosie (Saweeeet!) Optimal setcpu settings. Ie: charging profile (245 mhz min- 1.0ghz max/smartass) with this setting I normally get almost 1% battery charge increase a minute. screen off profile (700's mghz-1ghz/on demand. Screen on profile (1.1ghz-1.3ish ghz/smartass. etc... I know some stuff I mentioned doesn't really pertain to battery life, but this set up is just sick! Also, I read somewhere that its a good idea to let ur battery die completely, then turn phone on without charging (you may have to just a bit to get it back on) And let die again. This supposedly tells the phone where the dead zone is on the battery accurately, so it can now get a full clean battery charge. Myth? Idk, but damnit my battery is sick now! Hope this helps.
Sent from my ballerific, sick nasty, purely DopeDiculous, T-Beezy with that LTE-Z!

Personally, I've been testing Imoseyon [ROM] Tesla Coil Version 1.5, with Imoseyon [Kernel] leanKernel: minimal kernel "battsaver" .92 version. I am running it on "On Damand" with charging and screen off profiles, mobile data NOT on auto sync, Tasker for wireless ON at Home and audio OFF at nite.
Really, this seemed to have doubled my battery life. I was having to charge before the end of the work day with moderate use and now have been able to use well into the night.
Hope to see even more Rom/kernel concoctions out there as I love to try any new suggestions.

With adrenalines (I still don't memorize the spelling! Lol) 4.4.2 kernel it deff charges waaay faster as stated. Setcpu charging profile to lowest mghz min to around 1ghz max on smartass. Not demand, n it will bounce around to proper mghz levels as needed to speed up charging process. Its sweet n like you, I'm open for more suggestions
Sent from my ADR6400L using XDA Premium App

Adryn's debloat ROM and his kernel, with extremely light usage I pulled 38 hours (my previous record was 36). I have been using my phone for the bare minimum, so this is why I got so high. No, this is not real world usage and yes, I hated it, but it works. My normal battery life is somewhere closer to ~18 hours, except on Tuesday's and Thursday's, when I have lecture classes, I usually pull 9-10 hours, because I play games and browse the internet for 2 and a half hours.

Using imoseyon kernel 1.4 extreme(InteractiveX governor) with Tesla Coil 1.5. I have an extended battery, and with moderate use my phone can easily make it through one day into the next before needing to be charged.

Screen off and plugged in.. ;-)

I think it would be best to post in your stats whether or not you have 4g enabled as there are large populations of each way and it makes a significant difference.

IISiDeK1CKII said:
__________________
HTC Touch > HTC G1 > Apple iPhone > Apple iPhone 3G > Droid Eris > Droid > Droid Incredible > Samsung Fascinate > HTC Thunderbolt
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Click to collapse
Ha! You change phones a lot! My lineage is >>>Samsung MM-A900 flip phone>>>Samsung Jack (Windows)>>>Droid Eris>>>HTC Thunderbolt

ph0tios said:
Using imoseyon kernel 1.4 extreme(InteractiveX governor) with Tesla Coil 1.5. I have an extended battery, and with moderate use my phone can easily make it through one day into the next before needing to be charged.
Click to expand...
Click to collapse
What's the most noticeable of using with the extended battery? Extra cost, bulk or weight? Thanks.

johnchad14 said:
I think it would be best to post in your stats whether or not you have 4g enabled as there are large populations of each way and it makes a significant difference.
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Click to collapse
True...4g always enabled for me other then when I get no 4g signal and then 3g may go into effect. If no signal at all, then wireless when I am indoors.
I refuse to turn off 4g as that is why I got the phone and my coverage is pretty good for 4g...so, better battery life is a must for me

leankernel v .6 @ 1.41 on demand with das bamf 1.4 remix and i disable data when not using it and right now im at 56% battery at 32 hours with moderate use

I'm using imoseyons extreme kernel on interactivex governer on stock. I'm getting 14hrs %40 battery with moderate usage. I'm mostly on wifi all day with a little of 3g use.
Sent from my ADR6400L using Tapatalk

Huge *NOTE!*
Go to settings, menu, wireless networks, mobile networks and uncheck the third box. No need to have mobile data always on for most peeps . You'll still have 4G n everything, but gain a good 1-2 maybe more hrs (depending on use, kernels, governor settings, and I/O scheduling. I personally am running BAMF 1.6.2 with adryns 4.4.7 kernel, no set CPU, using tool box for that at 245mhz min - 1.02max with ondemand governor and most importantly SIO Scheduler. Try these n you will have amazing performance and better battery life. Let me know you opinions
Sent from my ADR6400L using XDA Premium App

Battery Drain

Sorry for making many thread, But I'm curious.
ANd need some help
How normal is this? ...
Idle: 216/216 Screen off
No Data No Wifi No GPS No bluetooth No sync
And I'm getting drain like this? What's happening?!?!
Or are the readings just wrong?

i was about to make a thread but saw this and thought id fill in it.
Well my g2x has been quite dissappointing lately..
When i first got it, the battery life wasnt that bad. Even had data/refresh and Auto brightness and it would last almost all day.
But the past couple of months its been unbearable. I would have to charge my phone at any oppurtunity, even at work. After 100% charge i would check 30min later and it would be already at 83%.
I'm on the latest CM7 nightly, and have also tried juice defender (no use)
Im contemplating on just doing a CLEAN install of the nightly but i dont want to start all over again because its a pain.
Any input? Or is it just the crappy battery?

LReyes66 said:
i was about to make a thread but saw this and thought id fill in it.
Well my g2x has been quite dissappointing lately..
When i first got it, the battery life wasnt that bad. Even had data/refresh and Auto brightness and it would last almost all day.
But the past couple of months its been unbearable. I would have to charge my phone at any oppurtunity, even at work. After 100% charge i would check 30min later and it would be already at 83%.
I'm on the latest CM7 nightly, and have also tried juice defender (no use)
Im contemplating on just doing a CLEAN install of the nightly but i dont want to start all over again because its a pain.
Any input? Or is it just the crappy battery?
Click to expand...
Click to collapse
It could be the battery. Your case is different from mine..
My battery is tested with Battery Monitor Widget, and it says my battery is about 1540mAh.
The thing I'm confused about is the battery drain.. It's quite high. 200mAh + at 216mhz

Try clean install, don't use any of those scripts (like V6 SuperCharger), those are wakelock city.
Now, go into spare parts and check your partial wakelocks and uninstall apps that have huge wakelocks, facebook is a battery hog.

clean install of cm7?
or clean wipe of phone back to factory then root/install cm7?

Clean install of the rom you're using.
Sent from my LG-P999 using XDA

I was having horrible battery drainage also. I replaced the usb cable and ac charger and it made a huge difference. Faux kernel also helped alot. I get a little over 8 hrs with moderate to heavy use.
EDIT: wait that wasn't even related to the op but the other scenario.
Sent from my LG-P999

Yeah, I tried a clean install...
After clean install, the only app I installed was this. And boom high usage.

all wipe first and flash or agian.

Wipe user data, /system, and dalvik cache. PM me if you're unsure where they are.
Sent from my amazing LG G2x running Bionix Reloaded v1.4

I have the same issue on my G2x. I have replaced battery with a 1800mAH and a 3500mAH extended. But the drain is the same with every one of them.
Have tried FAUX's kernel with SetCPU and the recommended settings, but to no avail.
Did a clean install (wiped user/factory reset, dalvik, cache and did a format /system) of RG2x-MIUI v2.3.16 - SWIPE NOTIFICATIONS-Powered by Faux123 CM v0.4.8 yesterday.
Battery drains at the rate of 10% every hour when idle. Even with minimal usage (15mins call time, few txt, light browsing over 4G), the battery won't last more than 4-5hrs
One thing I am curious about, do you have to run a combination of kernel+ROM over a period of time to see if the battery performs any better or are the results instant?

Most people get better battery life on OTA based roms than CM7/AOSP. So MIUI may not provide enough juice for you, but try Bionix Reloaded and tell us the difference in battery.
Sent from my amazing LG G2x running Bionix Reloaded v1.4

I has Bionix Reloaded before yesterday. The battery life was about the same, but the main issue that I was facing with Bionix was the switch from data-Wifi. For some reason, data had precedence over WiFi.
I can give it one more shot. Maybe a clean install would rectify that issue. DO you recommend any kernel/tweaks/setCPU settings etc with Bionix or just use it as such?
For the meanwhile, I have turned off GPS and using SetCPU 816/389 inscreen and 389/389 Off to see if there is any improvement.
I really don't care about the fancy part as long as I get battery life.

I recommend Faux's undervolted kernel, make sure its the one for GB btw. As for SetCPU settings (I uses CPU Master), I keep it at 216-816 most of the time, only raising it if I need it (such as Facebook, browsing, heavy games). I have the governor set to Performance.
Also, I don't have a screen off profile (but did have it set before) at 216-503 with Powersave governor, and my battery lasts more now that I took off the profile. The Tegra 2 has HW governors that more efficiently save battery than SW ones do. Not all CPUs are like this, so we are in for a treat.
Sent from my amazing LG G2x running Bionix Reloaded v1.4

Will give it a shot right now. Just to be sure about the kernel, we are talking abt this one:
[ GINGERBREAD: ]
[ Start @ 1.1 GHz, Pre Overclock / Under Volt, Max @ 1.55 GHz ]
The File ==> LGE Pre-OC/UV Kernel Version 013 With EXT4 <==
from http://forum.xda-developers.com/showthread.php?t=1102720

That's not my problem. O;
My problem is that When the battery is 100%, no matter what task I DO, it only drains -2...
But with the same setting, at 30% battery, my battery drains from -300 to -1000

BachanPandey said:
Will give it a shot right now. Just to be sure about the kernel, we are talking abt this one:
[ GINGERBREAD: ]
[ Start @ 1.1 GHz, Pre Overclock / Under Volt, Max @ 1.55 GHz ]
The File ==> LGE Pre-OC/UV Kernel Version 013 With EXT4 <==
from http://forum.xda-developers.com/showthread.php?t=1102720
Click to expand...
Click to collapse
Yes, that's the one. Flash away!
Sent from my amazing LG G2x running Bionix Reloaded v1.4

CM 10 performance settings

I just got upgraded from CM 9 stable to CM 10 stable and I love it. Only problem is battery life. I feel about a 10-15% reduction with the new upgrade. I've had CM 10 for about 4 days now. I don't want to touch the performance settings without knowing what I'm doing. Is there a way to change my performance settings to extend the battery life? Also has anybody played with a different kernel with CM 10 stable? Thanks

abehbeh said:
I just got upgraded from CM 9 stable to CM 10 stable and I love it. Only problem is battery life. I feel about a 10-15% reduction with the new upgrade. I've had CM 10 for about 4 days now. I don't want to touch the performance settings without knowing what I'm doing. Is there a way to change my performance settings to extend the battery life? Also has anybody played with a different kernel with CM 10 stable? Thanks
Click to expand...
Click to collapse
Don't worry about changing the cpu and governor settings. There is an option to set at boot. Make sure that is disabled, so if you have any problems a reboot will go back to default settings. I use the conservative governor, and have my minimum cpu speed set to 192. I've read that that speed is not entirely stable for many people, but seems to be working fine for me. That has been pretty good for battery life for me. I believe the default governor is interactive now, and the minimum cpu speed is set to 384 by default.

Do you just "feel" a battery difference, or do you have any actual numbers to back up that assertion? Keep a close eye on Settings / Battery and use Better Battery Stats to record solid numbers and identify what's actually eating your battery.

Also turn off google now location settings if ur not using it. They are really hard on the battery.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

Disable Google now and battery should be back to normal here is some pics. Cm10 default kernel,stock clocks, no UV, on demand governed, and deadline as scheduler
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

Thanks for the replies.
It seems to be my screen that is responsible for eating up my battery. Have had the phone disconnected from the charger for 4 hours now and all I've done is 20 min with screen time doing a little bit of texting and facebook and my charge is at 75. I have the automatic brightness setting off and put my setting at pretty low.
The cell stand-by battery usage is 8% during these 4 hours. Should I maybe try another radio or is this normal? It lost signal for about 10 min today.
Just turned off google now and selected the conservative governor. Let's see if this makes a difference.
I used to be able to go all day with my phone with CM 9 and I even have the nexus battery.
Thank you for all your help

That's most definitely not normal, at least in my experience. Are you using the vanilla CM10 or some variant?
Some things to try:
Install Better Battery Stats (find the free version on XDA via a search) to see if any apps are causing wakelocks. This is a must.
Use CPU Spy or something similar to see if your phone is entering Deep Sleep. This is a must.
Turn off Google Now unless you actually use it
Turn off all unnecessary radios (WiFi, Bluetooth, GPS) unless you're actually using them
Turn off all auto-refresh settings in every app you have -- all social apps and weather are the biggies
For me, turning off the default auto-refresh in Facebook, Google+ and Twitter are massive savings alone, then Settings / Battery & BBS will help you locate the remainder of the headaches quite easily.
You might want to consider swapping kernels too, or at the very least reconsider your CPU governor and scheduler settings.

I would stay away from conservative governor you won't get much performance out of that, stick with what comes stock and use on demand.... even the default interactive sucks my battery down
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

abehbeh said:
Thanks for the replies.
It seems to be my screen that is responsible for eating up my battery. Have had the phone disconnected from the charger for 4 hours now and all I've done is 20 min with screen time doing a little bit of texting and facebook and my charge is at 75. I have the automatic brightness setting off and put my setting at pretty low.
The cell stand-by battery usage is 8% during these 4 hours. Should I maybe try another radio or is this normal? It lost signal for about 10 min today.
Just turned off google now and selected the conservative governor. Let's see if this makes a difference.
I used to be able to go all day with my phone with CM 9 and I even have the nexus battery.
Thank you for all your help
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Don't use conservative, your phone is gonna be very slow and suck
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I'm currently running the vanilla CM10
Turned off google now location access and set the govern to on demand early this morning and it is performing a little better most def.
I have noticed that my phone lost signal 4 times during the day for periods varying 5-10 min. I am currently on the I727UCLF6 radio. I'm thinking maybe I should try another one. Could that help with that battery maybe?
I have been thinking about switching kernels but I am a little doubtful because I don't want to mess up my phone too much since I so heavily depend on it. I loved the hotcakez kernel that came with AOCP, maybe i'll give it a shot this weekend.
Thanks for all the help people! Def the best forum by far on the web.

abehbeh said:
I'm currently running the vanilla CM10
Turned off google now location access and set the govern to on demand early this morning and it is performing a little better most def.
I have noticed that my phone lost signal 4 times during the day for periods varying 5-10 min. I am currently on the I727UCLF6 radio. I'm thinking maybe I should try another one. Could that help with that battery maybe?
I have been thinking about switching kernels but I am a little doubtful because I don't want to mess up my phone too much since I so heavily depend on it. I loved the hotcakez kernel that came with AOCP, maybe i'll give it a shot this weekend.
Thanks for all the help people! Def the best forum by far on the web.
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Click to collapse
Just do a nandroid backup of the entire phone first before installing a new kernel and your risk drops to zero. If you install it and it all goes to hell, just boot back into recovery and restore your backup.
As for radio ... if you drop signal that often and your phone is constantly searching for one, I suppose that could impact the battery, sure. Are you certain you're in an area with solid coverage, though?
Learn more about the different governors and schedulers: http://forum.xda-developers.com/showthread.php?t=1950084

Yea I might have to play around with some kernels this weekend. Luckily it is a long weekend so I'll have some time if I mess up
My phone will go from 4 bars and a good signal at -78 dBM in my apartment and then randomly I'll lose signal for abut 5-10 minutes. A restart usually does the trick or I can just wait until it regains the signal which can be frustrating. I never had any problems with my signal at home running CM 10 so that leads me to think that there might be some problems with the radio.
Just want to confirm that these are the 5 radios I can use for AT&T even though I'm running JB.
http://forum.xda-developers.com/showthread.php?t=1754473

I've been using a UCLI3 modem I found on XDA a couple of weeks ago, it has been incredibly stable and strong for me. But as many people far wiser than me have said elsewhere, everyone's mileage with radios varies and it really just takes some testing to see what works best for you.

so I should be able to run the 5 ICS radios I found eventho im running jb right?
thanks for your help

abehbeh said:
so I should be able to run the 5 ICS radios I found eventho im running jb right?
thanks for your help
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Yeah if they are for the skyrocket.
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