Rom and kernel help!!! - EVO 4G Q&A, Help & Troubleshooting

I'm in a dilemma! For the last week I've been hunting around to find the right combination of Kernels and Roms. Natively I'm a CM ASOP man. But I've tried everything from CM to MIUI to Ava to Mym. None of the roms are giving a decent amount of battery life. I've tried several combinations of Kernels also. My battery life has been as terrible as 3 hours. I'm talking about losing a percent every minute!
I didn't buy an extended battery. But I have tried a brand new regular battery to make sure that I didn't have a bad battery. Both batteries have the same results under all combinations of Kernels and Roms.
I've seen members braggin on having 12 to 18th hours of life under heavy use! How is that possible!? Lol! I know it has to do with device, kernel, rom combinations.
Can the awsome members of the GREAT Xda please help me out? Point me in the right direction. fyi: I have a ver 003 device and also I don't overclock much at all but I underclock to try and save a lil juice!
Thanks in advanced!
Sent from my PC36100 using Tapatalk

No matter what rom/kernel combination I run I get really ****ty battery life with the stock red HTC battery. For me personally investing the $70 or so for the Seidio extended battery on Amazon was worthwhile. I also purchased their wall charger as well.
I'm not going to blow smoke up your ass and say that the battery last 2 days with heavy use because thats BS. However, with heavy use (running emulators, gmail sync, occasional bluetooth for wii mote, texting, web browsing, etc) I can get through a 9 hour work day with a lil life to spare.

At least go on amazon and get a1800 mah battery. They are cheap but goood.
Sent from my PC36100 using XDA App

I just bought another stock battery and a wall charger, I keep the spare in my wallet and battery life is a non issue now.
Check out batteryboss.org before buying an aftermarket one though, most of them are rips offs.

I'm not sure about rip offs on amazon but certainly ebay..i bought two batteries w/a charger for $25..and a third one since my oem battery took a bath, fully charged.
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I'm going to research some better batteries. I appreciate the intel. But my thing is I know I can get a few more hours of battery time with a simple kernel modification. Loosing 1% a minute is unheard of lol. Like now: I had 100% when I started this reply and I'm officially at 95% as I press Submit lol! Terrible
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DonSolo said:
I'm going to research some better batteries. I appreciate the intel. But my thing is I know I can get a few more hours of battery time with a simple kernel modification. Loosing 1% a minute is unheard of lol. Like now: I had 100% when I started this reply and I'm officially at 95% as I press Submit lol! Terrible
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You should see if you can get a replacement battery from sprint. I am using CM7 nightly 24, and can easily sustain 24+ hours with the OEM red battery.
Everyone will have different results even with the same rom/kernel, however the drain that your experiencing does sound like your battery might be going bad.

Khilbron said:
You should see if you can get a replacement battery from sprint. I am using CM7 nightly 24, and can easily sustain 24+ hours with the OEM red battery.
Everyone will have different results even with the same rom/kernel, however the drain that your experiencing does sound like your battery might be going bad.
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I see your stats and that sh*t is wicked! I used CM7 and that one drains the quickest lol.... before I cash out on a new extended battery where's an abundant source of Kernels? I've tried three and I wanted to do a little process of elimination before I pull out my visa lol
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There aren't very many CM7 kernel's available yet, so few that I can't even begin to tell you where to start looking, for Sense roms though, search for Netarchy those kernels work really well.

I see... I appreciate that! Imma give Mym a try with a few of them Kernels. Thanks again for the help
And what exactly is the Kernel that you are using!? Lol
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Honestly, I've found that the right kernel makes the biggest difference and setcpu, juicedefender, etc only make it worse. For me (also 003 hw) kings kernel and htc # 15 uv have been best. I've had great success with azrael and vaelpak roms. Currently on vaelpak with kings # 11 with NO battery saving apps. I get 24 hours with my regular use. Yesterday was very light, I went 24 hours with just under 50% left.
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(btw, that is on a stock battery, approx 5 months old)
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ms79723 said:
AOSP Builds
v7
12/25/10 - SBC for BC's Kernel SBC-bcnice-stable-v7.zip (2.62 MB)
This is what I'm currently using at the moment. So this gets all the updates as of right now.
v8-BETA
12/25/10 - SBC for BC's Kernel SBC-bcnice-stable-v8.zip (2.62 MB)
This is what I've been testing for a while. This build contains auto bump charging based on the voltage as opposed to the full charge method. I don't know how it works on extended batteries yet...but works pretty good on stock batteries. With this, you should have a better chance of picking up the phone at higher voltages.
Check out Savaged-Zen![/CENTER]
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Click to collapse
I flashed the ver 8 with CM6. 1.2. so far I've gotten slightly better battery life. 20 minutes and I'm still on 99%. That's a whole lot better than losing 1% a minute lol! I'm still going to do another exhaustive research to pinpoint the best combination!
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I know you guys said that setcpu can make matters worse. Is it alright if I use it to underclock to 245x245 when the screen is off and if the battery ever goes over 110°F automatically? That's the only profiles i use to help with battery maintenance
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DonSolo said:
I know you guys said that setcpu can make matters worse. Is it alright if I use it to underclock to 245x245 when the screen is off and if the battery ever goes over 110°F automatically? That's the only profiles i use to help with battery maintenance
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Click to collapse
If your still using CM7, it has its own built in setCPU, I have mine set to ondemand 245min, 768max, and sorry for the delayed response, I went to lunch, however the Kernel I am using for my CM7 flash is just the stock kernel that comes with the initial build if CM7.

Khilbron said:
If your still using CM7, it has its own built in setCPU, I have mine set to ondemand 245min, 768max, and sorry for the delayed response, I went to lunch, however the Kernel I am using for my CM7 flash is just the stock kernel that comes with the initial build if CM7.
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OK I gotcha. One last thing and I'm finished bugging lol. I never knew exactly what the preset governors main jobs were and the differences between them. Which one is best for power saving?
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Related

Best kernel for battery life?

Which .37 kernel gives the best battery life? I flashed Incredikernel last night and then charged the phone. This morning I used it for 10 minutes to check emails and the battery went from full to 79.
Oh, and I'm running CM7 RC2
Sent from my ADR6300 using XDA App
I'm also very interested in this. I just recently rooted/flashed CM7 RC2, and the battery life has been quite disappointing so far. Even with the unnecessary services turned off, my battery drains quite quickly.
I am rolling with SkyRaider 3.5, Lou's #8, an 1800mah battery and this morning, I shocked myself!
I left my house w/88% charged. Took my son to the dentist - used the phone for probably 44 minutes during that, just goofing off, reading, tweaking and whatevering ...
When I left the dentist office, 77%. Drove to work (1 hour) ... sitting at 74%.
I am also running the evo radio - which some say helps or doesn't - but I'm as happy as can be.
I turned off all of the memory management stuff and the phone is lasting longer...
I should also add - that I use Juice Defender, however when USING your phone, it is "defenseless". I find it to help me a lot with my "in my pocket" battery life. You still get txt and calls, you just don't get internet traffic.
YMMV
Where did you turn off the memory management features?
I've been using ziggys latest on Incredibly Re-Engineered Z and having great battery life. 14 hrs today off charger and was still at 50%.
Sanders
Sent from my HTC Droid Incredible using XDA Premium app
trickster2369 said:
I've been using ziggys latest on Incredibly Re-Engineered Z and having great battery life. 14 hrs today off charger and was still at 50%.
Click to expand...
Click to collapse
Can you give me the link to it?
Op is looking for best .37 kernel, you guys are recommending .32 kernels which are incompatible with gingerbread.
Sent from my desire z inc port.
what is a kernel and where is there a list of other things you guys are saying so I decipher the lingo.,., sorry for the noob question
Sniperdog said:
what is a kernel and where is there a list of other things you guys are saying so I decipher the lingo.,., sorry for the noob question
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Click to collapse
Troll around in the developer section for a bit, I think they even have a few stickies, you'll figger it out pretty quickly.
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[Q] help with battery not lasting long enough on HTC EVO 4G...help?????

my battery is only lasting like 5 hours and i have bought 3 already and the same thing happens. I have a ballistic HC case, so i cant buy the big ones, is there any other way to make my battery last long.
ohh by the way i barely use it like maybe only texting, but nothing else.
Is your phone rooted or stock?
And what rom? Any background apps running?
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Maybe a defective phone or bad apps
We're comin from a pure power source.
He just needs to condition his battery....
It's in my Signature
Maybe it's broken?
"Googly eyes"
Try a custom kernel. If ur on sense try netarchys kernel. If ur on aosp like me try tiamat sbc kernel with viperboys scripts or savaged zen. I use tiamats sbc tho with vb scripts
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Do you have a really poor signal and lots of stuff trying to sync? I have a horrible signal at my home and it will kill the battery really quick but at my office where I have a great signal it will last much much longer.
http://viperboy.tiamat-aosp.com/
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I have the same problem.... But it last more then 5 hrs, maybe 7-9... 9 being least used. I have notice it being a problem with this phone (from other users). I found a better battery at best buy for bout $45. Supposed to last 2x longer, ima try it out. Anyone have any input on this alternate battery... At bare minimum I'll have a back up.
Sent from my PC36100 using XDA App
If it is the platinum 3500 battery, it will be great. It's the retail version of the Seidio 3500. I picked one up a month ago. I originally bought a Laza 3500 from Amazon which wasn't much better than my stock 1500. I'm loving the Platinum though.
Stretchytadpole said:
I have the same problem.... But it last more then 5 hrs, maybe 7-9... 9 being least used. I have notice it being a problem with this phone (from other users). I found a better battery at best buy for bout $45. Supposed to last 2x longer, ima try it out. Anyone have any input on this alternate battery... At bare minimum I'll have a back up.
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Titan_evo said:
my battery is only lasting like 5 hours and i have bought 3 already and the same thing happens. I have a ballistic HC case, so i cant buy the big ones, is there any other way to make my battery last long.
ohh by the way i barely use it like maybe only texting, but nothing else.
Click to expand...
Click to collapse
There are many factors that deal with battery life. Since you say you use it for texting, then you either have your phone on all the time or you are constantly turning the lockscreen on and off (I am a texter too). If you're rooted then try the kernels suggested above, they'll help BIG TIME. You can also try another rom; other roms just have great battery life. If you're not rooted, then set your phone to never search for wifi signals and only use 3G, GPS, and bluetooth whenever you need to.

Better battery life out of an extended battery?????

I have an extended battery (2600). I was wondering, what does everyone do to get the most out of their extended battery if you have one? I'm hoping to get tips and or tricks from my fellow EVO users. If you have nothing positive to say, please don't post.. Any help is appreciated.
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Are you rooted?
I use the stock battery on my rooted Evo and it lasts all day.
It really does depend on weather your rooted or not cuz on my stock battery I can go about a day in a half maybe a couple hours less MAYBE but then I have a Seidio 3500 mAh that can go exactly 2 days 1 hour and 38 minutes with heavy heavy use and also on a charge of 93 percent
So again are you rooted?
http://forum.xda-developers.com/showthread.php?t=712990 check that thread, ever since i followed the steps my battery life is so much better. its been off the charger since midnight and i browsed fb for like 30 minutes, texted my wife n browsed the market for a bit and its only down to 89%. btw im using the stock battery.
Concordium said:
Are you rooted?
I use the stock battery on my rooted Evo and it lasts all day.
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Click to collapse
yes i am, running Mijah's MERGED along with Golden Monkey 1.1. I get about 6 hours out a stock and about 8 out a 2600.. am i missing something here?
dgomez720 said:
yes i am, running Mijah's MERGED along with Golden Monkey 1.1. I get about 6 hours out a stock and about 8 out a 2600.. am i missing something here?
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Not really lol I think that's pretty good I'm guessing that you got that with moderate/heavy use?
You may wanna give another ROM a shot and see cuz battery life may very between them. As well as kernels.
dzee206 said:
http://forum.xda-developers.com/showthread.php?t=712990 check that thread, ever since i followed the steps my battery life is so much better. its been off the charger since midnight and i browsed fb for like 30 minutes, texted my wife n browsed the market for a bit and its only down to 89%. btw im using the stock battery.
Click to expand...
Click to collapse
from what ive read on this, it seems to be likely to work. will give it a try and see what happens.
infamousteeboy said:
Not really lol I think that's pretty good I'm guessing that you got that with moderate/heavy use?
You may wanna give another ROM a shot and see cuz battery life may very between them. As well as kernels.
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Click to collapse
actually thats with it just sitting there doing nothing while im working. lol I have ran god knows how many roms all with about the same battery life expectancy except SAV-ZEN which is and always will be my favorite AOSP rom. lol oh well, ill give swapping roms another go, thanks man.
Originally Posted by infamousteeboy
Not really lol I think that's pretty good I'm guessing that you got that with moderate/heavy use?
You may wanna give another ROM a shot and see cuz battery life may very between them. As well as kernels.
Click to expand...
Click to collapse
actually thats with it just sitting there doing nothing while im working. lol I have ran god knows how many roms all with about the same battery life expectancy except SAV-ZEN which is and always will be my favorite AOSP rom. lol oh well, ill give swapping roms another go, thanks man.
Click to expand...
Click to collapse
Try Xplod RC1
infamousteeboy said:
Try Xplod RC1
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Click to collapse
Will give that one a go. I dled it a few days ago but i accidentally deactivated my EVO lol luckily i unrooted it and got it back to root just now so im going to give that one a go
Any stock kernel will not charge any extended battert correctly. I experimented with this for the last month.
I found an app called boot manager and now have 4 roms installed on my phone. At night I boot into a Froyo ROM with a SBC kernel and charge it, then in the am, boot into my Gingerbread ROM.
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dgomez720 said:
yes i am, running Mijah's MERGED along with Golden Monkey 1.1. I get about 6 hours out a stock and about 8 out a 2600.. am i missing something here?
Click to expand...
Click to collapse
Yep. If I don't use my phone it will last all day and lose about 1.5% every two hours. I just recently switched to my current setup and am still not used to it. I'll unplug my phone at ~95% and head out the door. I'll pull it out of my pocket a number of hours later and see that it's only down to about 93% - 92%. Before I switched my setup I would've been down the low 80's if not lower. When I use it my battery depends on what I am doing with it and what I have my scaling set to. Using my phone for things like texting, facebook, email, and some web browsing on Skyfire, which is what I would consider heavy use, it goes down about 3.5% per hour. Yesterday I went to my little niece's dance class and I used my phone to record video of her entire 60 minute dance class. Battery went down about 30% percent from that but that's to be expected. I remained out of the house for another 8 hours after her class and my phone still had 50% battery left by the time I got home. Wireless tether eats up my battery. But Thats because I am usually tethering while texting and testing launchers and such on my phone.
I do all of this on a stock battery. So I can only imagine how much I'd be able to do with an extended battery.
I get 30+ hours on my extended battery 2600 from sprint. LOL on warm 2.2
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wetrabbit444 said:
I get 30+ hours on my extended battery 2600 from sprint. LOL on warm 2.2
Sent from my PC36100 using xda premium
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see i ran WTPT for a long time because i loved the stability of it as well as the awesome batteyr life of it along with the option to SBC on the fly like SAV-ZEN. I'm not going to lie though, I love the GB's along with the carousel LMAO! X) i bet thats whats eating away at my battery lol

Best ROM for battery life

I need opinions, anyone?
I keep flashing different ROMS and the battery has always had bad life
I've done a lot of different methods to fix battery life issues, but no go.
Having good luck with Swagged Out Stock.
Sent from my PC36100 using XDA App
A lot of people say AOSP ROMs are good on battery life cuz the sense is gone.
Try out Xplod RLS (one of my favs) test it out see how it goes for you. It's an AOSP btw.
For sense I recommend Tommytomatoes Classic v0.0.0.4 its awesome!
How long does your battery last? Are you running mobile data all day? GPS?
I can get around 20-24 hours put of my battery with real heavy usage. Around 2 days with normal use.
I keep my 3g and everything off until i need it.
HTC EVO 4G running Mikg 2.58
Don't know who your talkin too but I'll reply lol
On Classic I'm gettin roughly about 1d 19h 43m with pretty decent usage text, call, xda, browsing jus putting it to charge right now
I have always had the best success with AOSP and custom kernel.
Currently running ICSmod7 with latest tiamets. With 4g it drops fast but without I get through a full day no worries medium use. Text, fb, music during workout ect...
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Getting good battery life with MikG 2.61.
mikg rom to me is best for battery life .and very stable rom and clean so try and let us know .im running miui and battery life is pretty good but not as good as my mikg rom
sense-free
I've been experimenting with ROMs and kernels for the last 18 months, always looking for best battery life with regular to heavy use. A good custom kernel will sometimes give you an extra 10-15 %. Using setCPU or another app like systemtuner (my pref) to turn CPU down while screen off can also give you 5-10%. Far and away the best thing for my battery is to use an alternative launcher (ADW for me) and then use Titanium backup pro or systemtuner to freeze sense. you just find the two elements in the process list that start with "HTC sense" and freeze them. Night and day. FYI I run synergy and have always come back to Myn's ROMs cause they are good for battery from the start, but they also take well to pretty much any custom kernel, which isn't true for all ROMs. I like everything to work so I always ditch AOSP ROMs a few days after trying them.
sam9696 said:
I've been experimenting with ROMs and kernels for the last 18 months, always looking for best battery life with regular to heavy use. A good custom kernel will sometimes give you an extra 10-15 %. Using setCPU or another app like systemtuner (my pref) to turn CPU down while screen off can also give you 5-10%. Far and away the best thing for my battery is to use an alternative launcher (ADW for me) and then use Titanium backup pro or systemtuner to freeze sense. you just find the two elements in the process list that start with "HTC sense" and freeze them. Night and day. FYI I run synergy and have always come back to Myn's ROMs cause they are good for battery from the start, but they also take well to pretty much any custom kernel, which isn't true for all ROMs. I like everything to work so I always ditch AOSP ROMs a few days after trying them.
Click to expand...
Click to collapse
Underclocking your CPU typically causes higher battery drain... unless you're overclocking. As long as nothing is really hammering the CPU in the background (which is the problem, not the CPU speed!), then it's better to let the CPU enter higher power states in order to finish the work quicker and return to low power sleep state. Intel calls this HUGI (Hurry Up and Get Idle). Overclocking can have bad effects with HUGI due to the higher voltage required to run at those frequencies. Lol'd at your AOSP comment though. I suppose some people are okay with subpar android, aka sense .
My Evo can last a week on a single charge. CM7.1, 1850 mAh aftermarket battery (slim, stock battery cover), Tiamat 4.1.0 kernel, aggressive undervolting and monitoring of wakelocks combined with 90% wifi usage (3g is the #1 source of battery drain!).
Sent from my Transformer TF101
Tommytomatoes The Classic is a solid sense rom with good battery life its fast as hell, has lots of mods and themes and is pretty sick I've been stuck on it for over a month now I've flashed other roms but always come back to the classic after a few hours
Sent from my Classic-EViLizED-ToMAToFiED-EVo4g-
maybe a dumb question. What is the difference between underclocking and undervolting?
Gary13579 said:
Underclocking your CPU typically causes higher battery drain... unless you're overclocking. As long as nothing is really hammering the CPU in the background (which is the problem, not the CPU speed!), then it's better to let the CPU enter higher power states in order to finish the work quicker and return to low power sleep state. Intel calls this HUGI (Hurry Up and Get Idle). Overclocking can have bad effects with HUGI due to the higher voltage required to run at those frequencies. Lol'd at your AOSP comment though. I suppose some people are okay with subpar android, aka sense .
My Evo can last a week on a single charge. CM7.1, 1850 mAh aftermarket battery (slim, stock battery cover), Tiamat 4.1.0 kernel, aggressive undervolting and monitoring of wakelocks combined with 90% wifi usage (3g is the #1 source of battery drain!).
Sent from my Transformer TF101
Click to expand...
Click to collapse
Underclocking is when you set the speed of the processor to a lower setting than the stock clocks where as undervolting is lowering the voltage needed to run it at a certain speed be it stock underclocked or overclocked. Simplest way I understand it.
Sent from my PC36100 using Tapatalk
Real culprit for batt issues
Has anyone ever bothered to understand that theres a pesty bug no one knew of.. Called CIQ "carrier IQ"
Ya this is one of the main reasons behind bad batt.. Sprint and other carriers allow a company to monitor and chart everything we do and it mirrors off txts and data sent and is designed to pick up on.key words... Basically an Invasive tracking monitor. It's a huge in noticed drain... And its been shown to be removed from system/app in many custom roms. But it never does cause its so strattled throughout the OS.
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IMPuLSe EX said:
I need opinions, anyone?
I keep flashing different ROMS and the battery has always had bad life
I've done a lot of different methods to fix battery life issues, but no go.
Click to expand...
Click to collapse
I have been using evodeck v1.3 with the lee kernel and the rom just sips on my battery and gives me outstanding battery life with amazing speeds
lojak29 said:
Has anyone ever bothered to understand that theres a pesty bug no one knew of.. Called CIQ "carrier IQ"
Ya this is one of the main reasons behind bad batt.. Sprint and other carriers allow a company to monitor and chart everything we do and it mirrors off txts and data sent and is designed to pick up on.key words... Basically an Invasive tracking monitor. It's a huge in noticed drain... And its been shown to be removed from system/app in many custom roms. But it never does cause its so strattled throughout the OS.
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
"no one knew of" are you kidding me? Carrier IQ has been known about for at least a year now... and no, it's not responsible for any significant amount of battery drain...
Sent from my Transformer TF101
Definantly aosp in my experience. Cm7 gets my vote for battery life
Gary13579 said:
Underclocking your CPU typically causes higher battery drain... unless you're overclocking. As long as nothing is really hammering the CPU in the background (which is the problem, not the CPU speed!), then it's better to let the CPU enter higher power states in order to finish the work quicker and return to low power sleep state. Intel calls this HUGI (Hurry Up and Get Idle). Overclocking can have bad effects with HUGI due to the higher voltage required to run at those frequencies. Lol'd at your AOSP comment though. I suppose some people are okay with subpar android, aka sense .
My Evo can last a week on a single charge. CM7.1, 1850 mAh aftermarket battery (slim, stock battery cover), Tiamat 4.1.0 kernel, aggressive undervolting and monitoring of wakelocks combined with 90% wifi usage (3g is the #1 source of battery drain!).
Sent from my Transformer TF101
Click to expand...
Click to collapse
So you clearly don't talk on the phone at all.
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alaman68 said:
So you clearly don't talk on the phone at all.
Sent from my PC36100 using XDA App
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Click to collapse
Ah yes, the people that come in arguing and debating my claims. This happens every time. I use my phone quite often, and still get amazing battery life.
Sent from my Transformer TF101
Gary13579 said:
Ah yes, the people that come in arguing and debating my claims. This happens every time. I use my phone quite often, and still get amazing battery life.
Sent from my Transformer TF101
Click to expand...
Click to collapse
Dude you have a serious problem I honestly think you need to quit thinking people are attacking you this is the 3rd time I've seen you in a thread that I'm in and not once have I seen you post anything good or helpful I honestly think you should refrain from posting that's my opinion only cause I think your on a kid level and you really can't carry an easy conversation with someone sometimes I wonder if you even have this phone and if your trolling EVO Forum instead of the Transformer Forum.
TrevE Supporter!
If you like being on this site everyday!
I suggest you click this link a fill it out!
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Then HIT THE THANKS!

Battery life poor except for stock

I give up.every ROM I run just doesn't have the battery life expected. Am I expecting to much? Not even Cauks or blazer el29 doesn't give the battery life as stock.don't get me wrong they are all great roms but at least for my device not battery friendly. I'll post some battery stats from BBS if anybody has some free time to see what's going on. I'm on Cauks el29 now.I format everything before flashing and I use cauks format all many times. I'm on the verge of staying on stock roll my eyes.
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bigrndahouse said:
I give up.every ROM I run just doesn't have the battery life expected. Am I expecting to much? Not even Cauks or blazer el29 doesn't give the battery life as stock.don't get me wrong they are all great roms but at least for my device not battery friendly. I'll post some battery stats from BBS if anybody has some free time to see what's going on. I'm on Cauks el29 now.I format everything before flashing and I use cauks format all many times. I'm on the verge of staying on stock roll my eyes.
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
Well when is the last time you used stock? And if it's been quite a while...consider having your battery checked out. Anyway, I'll continue as if your battery is fine from here on out. Basically, anything but stock tends to have a modified kernel. Even with all the battery tweaks, etc out there, there's a chance that the kernel itself might not play well with your phone. I'm not too versed in that, but I also noticed that the TouchWiz based ICS kernels/ROMs give MUCH better battery life than AOSP based kernels/ROMs such as CM9 and AOKP, etc. This is just basic stuff you might already know, but yeah, just go on and post your battery stats, preferably with a custom rom and a stock rom so we can see the difference and where it lies. Also, I'm running Touched by a Galaxy S3 on my phone and with moderate use (music for maybe a few hours a day, texting, don't really make many calls) I average between 8.5 and 11 hours from 100 to 0. Another thing I'd suggest is download CPU Spy from the Android market, or something similar if you prefer, and post screenshots from that on the custom ROM; the problem with AOSP and certain other GB and TW ICS roms that i've seen is that something prevents the processor from going into deep sleep mode, usually keeping it at 200mhz or higher. Lastly, when you use the custom roms, do you notice the phone getting really hot compared to the stock roms?
I'm assuming you know this but are you letting the battery cycle a few times before passing judgement? I usually spend a week on a rom before I decide if I have good/bad battery life... attached screenie is normal for me with moderate use on mijjhs goodness rom
Sent from my SPH-D710 using xda app-developers app
I always had faster battery drains on ROMs than stock. I see all this awesome battery stats screenshots but noticed they all share one common factor, only 1hrs to 30min screen use. Come on guys why I would want that battery life if to get it I have to barely use the phone makes no sense to me.
"hey look my awesome battery life, 1d 25min" (35min) screen time" pffffftttt :what:
Sorry for the rant. Had to let it go outside.
Edit:
Btw: this post had nothing to do with the screenshot before this post. Trust me didn't notice it was there till after the post. Lol
Sent from my epic trusty EL29 this time rooted.
Sorry to disagree but that is not my experience at all... This is the m'ics rom and is typical of the battery life I get.
Sent from my SPH-D710 using xda premium
CyberpodS2 said:
Sorry to disagree but that is not my experience at all... This is the m'ics rom and is typical of the battery life I get.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Agree, everyone have different experiences, I haven't try that ROM yet, I will test it out later. Have a nice day/night sir.
Sadly I have to agree with OP.
And the previous screenshots at 59% with 1hr, 36 screen on is exactly the issue.
Hard to compare your battery stats with mine since screen on time for my phone will be 4+ hours.
Since there are no standardized testing anyone can do with any rom, any speculation on which rom has better battery life or doesn't is just pure bogus seat of the pants gut feelings.
If there were a standard test that ran like. 5 minutes of mail with 20 mails received, 10 minutes download, 30 mins of playing the exact same video, 13 music tracks of the exact same song all with screen, vibration, brightness, etc all at the exact same level, you could get a real test, but, alas, nobody has a standardized test.
For MY usage, stock clocks in at the same as or better than just about any other rom I've tried, including all the various super scripts out there.
I guess I just overuse my phone!
Omar04 said:
I always had faster battery drains on ROMs than stock. I see all this awesome battery stats screenshots but noticed they all share one common factor, only 1hrs to 30min screen use. Come on guys why I would want that battery life if to get it I have to barely use the phone makes no sense to me.
"hey look my awesome battery life, 1d 25min" (35min) screen time" pffffftttt :what:
Sorry for the rant. Had to let it go outside.
Edit:
Btw: this post had nothing to do with the screenshot before this post. Trust me didn't notice it was there till after the post. Lol
Sent from my epic trusty EL29 this time rooted.
Click to expand...
Click to collapse
Agreed absolutely.
bigrndahouse said:
I give up.every ROM I run just doesn't have the battery life expected. Am I expecting to much? Not even Cauks or blazer el29 doesn't give the battery life as stock.don't get me wrong they are all great roms but at least for my device not battery friendly. I'll post some battery stats from BBS if anybody has some free time to see what's going on. I'm on Cauks el29 now.I format everything before flashing and I use cauks format all many times. I'm on the verge of staying on stock roll my eyes.
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
You're doing it wrong.
Sent from my SPH-D710 using Tapatalk 2
psych0r3bel said:
Well when is the last time you used stock? And if it's been quite a while...consider having your battery checked out. Anyway, I'll continue as if your battery is fine from here on out. Basically, anything but stock tends to have a modified kernel. Even with all the battery tweaks, etc out there, there's a chance that the kernel itself might not play well with your phone. I'm not too versed in that, but I also noticed that the TouchWiz based ICS kernels/ROMs give MUCH better battery life than AOSP based kernels/ROMs such as CM9 and AOKP, etc. This is just basic stuff you might already know, but yeah, just go on and post your battery stats, preferably with a custom rom and a stock rom so we can see the difference and where it lies. Also, I'm running Touched by a Galaxy S3 on my phone and with moderate use (music for maybe a few hours a day, texting, don't really make many calls) I average between 8.5 and 11 hours from 100 to 0. Another thing I'd suggest is download CPU Spy from the Android market, or something similar if you prefer, and post screenshots from that on the custom ROM; the problem with AOSP and certain other GB and TW ICS roms that i've seen is that something prevents the processor from going into deep sleep mode, usually keeping it at 200mhz or higher. Lastly, when you use the custom roms, do you notice the phone getting really hot compared to the stock roms?
Click to expand...
Click to collapse
Probably a good 2 weeks since on stock. I tried all ICS but i just used the kernel that it was packed with.THats a good time frame. What is the best kernel to run with roms?
cp320703 said:
I'm assuming you know this but are you letting the battery cycle a few times before passing judgement? I usually spend a week on a rom before I decide if I have good/bad battery life... attached screenie is normal for me with moderate use on mijjhs goodness rom
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
Wow thats some crazy battery life. yea ive been on it for a good week. pretty much i stay on it for a week or two and then i do a battery calibrate. what kernel do you use with the Mijjhs Goodness rom
Get a good gb rom and under clock that puppy to 500 or 800. Battery definitely lasts
Sent from my SPH-D710 using Tapatalk 2
volwrath said:
Get a good gb rom and under clock that puppy to 500 or 800. Battery definitely lasts
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
Also if you use caulks roms flash his under volt script as well. I was using his -75mv script stable. Which equaled amazing battery life.
Sent from my SPH-D710 using xda app-developers app
CyberpodS2 said:
Sorry to disagree but that is not my experience at all... This is the m'ics rom and is typical of the battery life I get.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
How did you get this type of battery life? please share the steps on how you rooted your phone up to the operation.
thanks man.
revamper said:
You're doing it wrong.
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
Thanks for your observation that I'm doing it wrong. What would be appreciated more than telling me your opinion would give me steps in correcting as to "what" i'm doing wrong
bigrndahouse said:
How did you get this type of battery life? please share the steps on how you rooted your phone up to the operation.
thanks man.
Click to expand...
Click to collapse
By not using the phone.
Sent from the terminus system using quantum entanglement
gilbydakid said:
By not using the phone.
Sent from the terminus system using quantum entanglement
Click to expand...
Click to collapse
Lol
Sent from my SPH-D710 using xda premium
Things drain battery. This is my test off wifi for the most part using the phone as a phone with average use. Didn't even log in to Google on this one. Just proof that intensive applications, google services, and anything else added after a "factory flash" can manipulate battery life significantly.
Oh, and check out drain when I'm in less than ideal coverage. Noticeable difference. One huge factor to consider when diagnosing battery life.
It really depends on what you're doing with the phone. Obviously having brightness up playing heavy games with Wimax on will kill battery faster than someone on low brightness reading an ebook with wifi on. That said, i agree that I've had better battery life stock than almost all ics roms.
My life for Aiur
barnacles10 said:
Things drain battery. This is my test off wifi for the most part using the phone as a phone with average use. Didn't even log in to Google on this one. Just proof that intensive applications, google services, and anything else added after a "factory flash" can manipulate battery life significantly.
Oh, and check out drain when I'm in less than ideal coverage. Noticeable difference. One huge factor to consider when diagnosing battery life.
Click to expand...
Click to collapse
Truth to the last word.. I hate battery life threads too many variables.. I love the part about " using the phone as a phone " you crack me up B..:laugh:

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