Develop Bugs

[Q] HTC EVO -- Best Battery life ROM???

Can anyone tell me which ROM (STABLE) provides the best battery life on HTC EVO???
Thanks!

I have been through just about all on this site and Fresh's newest seems to work best for me. With moderate daily usage I can go without charging for about 22-24 hours. Of course all I need to go is 12-14 b/c I charge every night anyway, but I did leave off charger one day just to see how far I could go. I'm giving Calk's latest a try right now to see how it goes. Just be sure to give whatever ROM you try a couple charges before making a final decision, as it usually takes this amount to get an accurate read on true battery life.

how many of these post are we going to need lol

buddho81 said:
Can anyone tell me which ROM (STABLE) provides the best battery life on HTC EVO???
Thanks!
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Click to collapse
I know that the latest kernels off the latest build have been killing my battery, it's horrible for my EVO.
But you really have to try different rom/kernel/PRI/radio combinations to find the best battery life for your Evo. I wish there was a preset rating system for each rom though, just to see how things work for everyone else(i.e. battery life, quadrant scores, force close problems, etc.)...but there really are a lot of variables, so I don't think that may ever happen.

Yeah I agree there isn't a clear cut winner. Everyone uses their phone different so it will differ for everyone.
Totally agree to give it a few full charges... I suggest when you get a new rom and/or kernel installed to reset the battery stats (can be done in recovery) then use it till it dies then charge to full before turning it back on.
Personally, I've been using Fresh 3.3 w/ the Kings #6 kernel and not only has the phone been screamin' fast the battery has been good. I'm only on my 2nd charge up though so I still have one or two to go before everything smooths out.

buddho81 said:
Can anyone tell me which ROM (STABLE) provides the best battery life on HTC EVO???
Thanks!
Click to expand...
Click to collapse
2.2 Evo Kernels Tested and charted

admorris said:
I have been through just about all on this site and Fresh's newest seems to work best for me. With moderate daily usage I can go without charging for about 22-24 hours. Of course all I need to go is 12-14 b/c I charge every night anyway, but I did leave off charger one day just to see how far I could go. I'm giving Calk's latest a try right now to see how it goes. Just be sure to give whatever ROM you try a couple charges before making a final decision, as it usually takes this amount to get an accurate read on true battery life.
Click to expand...
Click to collapse
What kernel are you using for the battery life?
Sent from my PC36100 using XDA App

catseyenu said:
2.2 Evo Kernels Tested and charted
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Click to collapse
As posted here, the tests showed that CM w/ Snap 7.5 probably has the best battery life - and it seems by a lot.

download juice defender

[ROM]CM-B2_Supersonic-XV a.k.a [email protected]$T(SuperMOD) UPDATE#5 w snap 7.5

I'm using the latest Fresh and I just plugged my phone in at 15% battery after 37 hours. I'm pretty happy with that.

Fresh Rom always gave me good battery.. I'm just using the rooted stock OTA and am getting great battery life.
Sent from my HTC Evo 4G using XDA app.

Sporkman said:
how many of these post are we going to need lol
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Click to collapse
Until someone takes the time to make a section that covers the different problems. Battery problems, Battery Problems w/ ROMS, Apps not loading, etc. etc.
Wishful thinking. I do like the search in the search to help cut down this crap

Wallabe said:
Until someone takes the time to make a section that covers the different problems. Battery problems, Battery Problems w/ ROMS, Apps not loading, etc. etc.
Wishful thinking. I do like the search in the search to help cut down this crap
Click to expand...
Click to collapse
I think it would be a great idea for this kind of stuff to happen. Some aggregated source where everyone can submit their information using various roms, kernels, etc. Whether it be information regarding Quadrant scores, linpacks or battery life. On computer hardware forums they generally have a section dedicated to OCing records with charts listing someones entire setup while attaining the clock speeds. I don't see why a similar implementation can not be done here.

Wallabe said:
Until someone takes the time to make a section that covers the different problems. Battery problems, Battery Problems w/ ROMS, Apps not loading, etc. etc.
Wishful thinking. I do like the search in the search to help cut down this crap
Click to expand...
Click to collapse
How about if we make a section purely for questions and answers? That could work.

Two words......juice defender
Sent from my PC36100 using XDA App

i use Fresh's Rom made my battery life live avg abt 15 hours

Over 40 kernels were tested and benchmarked in 7 different ways, and the results are posted here.
Should tell you everything you want to know, without bringing roms into the picture (since battery life is most affected by the kernel used, not the rom)
edit - looks like I'm a bit late withthat link - I see the thread for that site was already posted above. It's a great resource.

Fresh 3.2, hands down best battery life for me. 3.3 was pretty bad, as was myn's release....which sucks, because myn's rom is otherwise awesome.

I am using Fresh 3.3.0.1 with a baked kernel that is able to over clock. I then have SetCPU installed with profiles for different states of the phone. If my screen is off I have the cpu set to a max of 500MHz to save battery if there are any processes running in the background. I then have my cpu set to 1119MHz when the phone is plugged in or at 100% with the screen on just because I like a snappy phone. Then when the battery drops below 50% I have it return to stock speeds.
I use my phone heavily for things like subsonic, QIK, FB, Calendar, wireless tether, and of course since unlimited data, calling to any cell, and texting I am on it a lot keeping in touch with friends. I also use the sprint nav at least twice a week.
Results will vary from user to user but so far the phone has been on 7 hours and after some moderate use it's only down to around 75% on the battery.
Again this is how I MYSELF use my phone with this rom and kernel this may not be how you use your phone and you may see different results.
What I have done is searched roms and installed them in total I have used 4 different roms. Baked, Cyanogen, Fresh, and Virus. After installing each rom and setting up my phone I made a nand backup of each so I can flash between them as needed to test. I have found out of all of these roms Fresh 3.3.0.1 with a kernel from the baked roms has worked the best for MY daily use.

Tiamat or Savaged for AOSP?

Which one are you using, and why? I can't figure out which one to load. I know I can try them out, but I was just wondering what others thought on the subject.
I'm running CM7 right now, the official release.

I am running Tiamat with the CM7 Final. My battery life has been much better than before, usually get about 18 hours of use. Everything seems to run nicely! I did a lot of research and tried a bunch of different ROMs, this one has been the best for me.

Tiamat!!!!

cordell12 said:
Tiamat!!!!
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Click to collapse
+1
I get awful battery life with SavegedZen. Everything is smooth with Tiamat, and I get great battery life. Ironically, I feel my 3G/4G and tethering speeds are faster with the Tiamat kernel as well.

I was using Tiamat when I was running CM. I was getting really good battery life and leaving data, wifi, gps ect... on. I usually charge at bed time and average moderate use but never had an issue with low battery.
In fairness to this post I have NOT used SZ so I might be biased. I have been reading up on it and noticed on cyanogens forums a lot of people swearing by the combo so I will probably give it a ****. I think this far into the game either are superb choices and it boils down to personal experience and phone specific issues.
Sent from my PC36100 using XDA Premium App

I use Tiatmat 3.3.5 scb kernel and love it. I took my phone off the charger about 11pm last night. I played on it for almost 2 hours solid and went to sleep and left it off the charger. I got up and spent about 30 minutes on it this morning. So far it has been up 9 hours and 44 minutes and still have 52%.
I selected a SBC kernel because I read on a thread over on XDA that it's best to use them if not charging all the time and you only charge overnight. Lot's of speculation on these kernels killing the batteries from what I read but I have yet to see any confirmed reports that this kernel damaged the phone.
Cyanogenmod & Tiatmat for the win!

Tiamat for battery, but savage has it beat on performance. Depends on what you want.
~ d3rk

dirkyd3rk said:
Tiamat for battery, but savage has it beat on performance. Depends on what you want.
~ d3rk
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Click to collapse
Tiamat wins, ha.
Is there a noticeable difference in performance? Where would I see it or notice it?

lehalter said:
Tiamat wins, ha.
Is there a noticeable difference in performance? Where would I see it or notice it?
Click to expand...
Click to collapse
No you wouldn't notice it much, in scores yes but not much to the end user.
~ d3rk

Mine is slightly reversed from everyone else in this thread.
Tiamat gives better performance but SavagedZen gives better battery life for me. I even discussed this with Tiamat's dev, cayniarb. I guess my Evo is weird.

CM7 Kernel suggestions?

Hey all, I was wondering if anybody had any suggestions for a kernel that is good for battery life. I am running the stable release of CM7 and I have the OEM extended battery (came with the phone when I bought it) and I currently can get about 1.5 days of moderate use (wifi turned on whenever available, frequent twitter/facebook/foursquare updates, heavy texting/emailing and moderate web browsing) but I am always open to new options for improved battery life.
The kernel I have now is underclocked by about half and I find that helps a lot (if I remember correctly, it is the stock kernel).

Best kernel in my opinion for AOSP is Tiamat: http://tiamat-aosp.com

I am somewhat new to the non-stock rom/kernel game but have the latest version of incredikernel with CM7 stable and really like the combo so far
The stock CM7 kernel had lower wifi performance for me with Incredikernel it is back where it should be

scook9 said:
I am somewhat new to the non-stock rom/kernel game but have the latest version of incredikernel with CM7 stable and really like the combo so far
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Agreed. Incredikernel FTW.
Flash the lower voltages to get even better battery life. If your phone can take them without rebooting often then you'll get a significant increase in battery life while maintaining the same CPU power.

2.6.37.6-incredikernel is working phenomenally for me

Incredikernel is the best I've found on any aosp rom. Awesome battery life.
Sent from my Incredible using XDA App

POQbum said:
Agreed. Incredikernel FTW.
Flash the lower voltages to get even better battery life. If your phone can take them without rebooting often then you'll get a significant increase in battery life while maintaining the same CPU power.
Click to expand...
Click to collapse
Curious, is there a guide or instructions on how to flash the lower voltages. I've checked out Chad's thread and it confuses me.

Incredikernel FTW
I went with Incredikernel. So far so good, it's been off the charger for about 13-14 hours now and it's at 82% battery. Wifi and GPS both turned on with a decent amount of texting/email checking and a little web browsing. It is underclocked about half way with SetCPU and still very snappy and responsive. Definitely happier with my phone than ever before.

Incredikernel is what my friend uses and he loves it.

Also wanted to add I have heard good things about Tiamat as well, another one you couldnt go wrong with.

Best ROM for battery life

What ROM's are you using and what do you think has the best battery life? I love my DHD but my biggest pain with it is it's battery life, I would love to get around 15 hours of moderate-heavy use out of it, but right now I only get between 8-10 hours of it, I've tried LeeDroid, Revolution and CyanogenMod. Which custom rom do you think is best for battery life?

in my humble opinion i would say CM7... thats after a fresh flash, battery calibration, and one full charge till total discharge (sometimes i like to do it two times just to make sure the bat stats get proper readings)... Maybe its just me but i usuall get around 15-18 hours depending... I would say that i am a medium to heavy user...mainly surf the web, movies, mp3s, text, light emails and of course downloading new roms and themes to flash...
Other than cm7 i find that RCMix and revolution to be pretty decent on battery life
U can always use currency widget to determin power loss and check whats soaking up your power
I'm no expert but so far this has worked for me

i've flashed a few roms over the last few weeks and i must say that they are all pretty decent in terms of battery life. i haven't really noticed one being significantly better than the next.
i can easily kill my phone within 7-8 hours with heavy usage but i can also keep my phone going for about 30 hours with light usage and about 16 hours with moderate usage, using the same rom.
if you asked me, i think it just depends on your style of usage. perhaps this isn't the answer you're looking for but i really don't think there's one rom out there that is going to give you that edge.

If you are looking for battery, use MIUI Freshly squeezed versions...CM7 was my first ROM, I loved it but battery life was terrible.. I could hardly squeeze out 12-13 hours even on low usage..MIUI is great! I easily get 15-20 hrs plus battery on moderate usage(wifi connected most of the time, abt 30 min gaming etc)..I bet if u try u'll see the difference.....

thanks for the replies, I think you're right with how you use it. Going to try MIUI now as well

aradhyat said:
If you are looking for battery, use MIUI Freshly squeezed versions
Click to expand...
Click to collapse
+1
but i use leedroid_hd_GB_3.0.1

Leedroid's roms always have very good battery life

Also bare in mind the radio you use has a big affect. I used the stock radio from December with Android Revolution when I first flashed it and my battery drain was extremely bad, about 15% an hour. Flashed some new radios and I get at least 18 hours before I hit 30%.

Yup radio plays a very important role.I tried 6-7 different radios before I found the right one.....

tuckerson said:
thanks for the replies, I think you're right with how you use it. Going to try MIUI now as well
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Click to collapse
If it is not important for you to lose HTC sense, MIUI is nice in spite of the fact that it looks like too much the firmware of the iphone
CM 7.0.0 HAS a bad battery drain but its fixed in the cyanogenmod 7.0.2... now the battery works for a long time.. 24 30 hrs moderate use..
and finally if you are interested for a better battery drain try SETCPU.apk (free for XDA MEMBERS) AND configure your proccessor for a conservative work or setdown de cpu (900 mhz for example)
under my experience with the custom roms leedroid (lastest froyo 2.2.1 with leedroid kernel 2.2.9 at 960 mhz max) was provided the best battery drain

Yup MIUI does look like iOS...That was one of the reason I didn't pay much attention to it at first.
You can always use a good launcher like ADW or Launcher Pro to replace the iOS feel...I personally am a fan of Go Launcher EX...its simple n fast n serves my purpose

aradhyat said:
Yup MIUI does look like iOS...That was one of the reason I didn't pay much attention to it at first.
You can always use a good launcher like ADW or Launcher Pro to replace the iOS feel...I personally am a fan of Go Launcher EX...its simple n fast n serves my purpose
Click to expand...
Click to collapse
ouu!good idea!!! i like miui´s performance but i don´t like his app drawer hahah

Newest Android Revolution HD + matching radio.img and MDJ's kernel v8 and good SetCPU settings makes for a REALLY fast DHD ( 1.6GHz ) and great battery life, a full day with medium to heavy usage from what I've experienced so far.

Used MIUI for the last day, really impressed, except for the iPhoneish feel as been said above. Going to try the setcpu too so I can underclock
I'm using the recommended radio too, which I always make sure I do, I rely on that for improved signal as well, the reception around my place is quite dodgy. Vodafone is Australia's equivalent of AT&T in America in terms of dodgy reception ha

My DHD is now running CyanogenMod7 2.3.5 Nightly and it drains about 1% every two hours idle. I think that's good.
Can anyone make a comparison table?

ARHD 5.2.3............almost 36 hours with regular use here.............24 hours atleast..................

rohithksaj said:
ARHD 5.2.3............almost 36 hours with regular use here.............24 hours atleast..................
Click to expand...
Click to collapse
Same here, although needs quicker recharging when using WiFi intensely (after about 12 hours in my case.)

as i think android rev. 5.2.x ,, the greatest bettary life for me

and also i think in general sense 3 roms are very bad in bettary life

Dark Helmet said:
Same here, although needs quicker recharging when using WiFi intensely (after about 12 hours in my case.)
Click to expand...
Click to collapse
i used to get 24hours even using wifi for ARHD 5.2.3+sense 3 components.....
but now i a using some extras other than sense 3[like transparent rosie,clock....so oon]
now my battery drains fast when using wifi...like you...............................

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...
Sent from my PC36100 using xda premium

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.
Sent from my PC36100 using XDA Premium App

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.
Sent from my PC36100 using XDA App

alaman68 said:
So you clearly don't talk on the phone at all.
Sent from my PC36100 using XDA App
Click to expand...
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.
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