Database Users

Wifi makes a difference.

After all this time of having a screwed up Wifi I realize it was the router. Once I got a new router I'm sitting on 19 hours with 39% left. I know some people have better battery life than that but I'm impressed. Btw im running myn's warm 2.2 with kings#11 kernal. It's awesome and fast
Sent from my PC36100 using XDA App

jacoballen22 said:
After all this time of having a screwed up Wifi I realize it was the router. Once I got a new router I'm sitting on 19 hours with 39% left. I know some people have better battery life than that but I'm impressed. Btw im running myn's warm 2.2 with kings#11 kernal. It's awesome and fast
Sent from my PC36100 using XDA App
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What is the display on time?

Only about 2 hours which us is kinda low.
Sent from my PC36100 using XDA App

jacoballen22 said:
Only about 2 hours which us is kinda low.
Sent from my PC36100 using XDA App
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That's about right for battery life then. I don't think you can do much better.

im convinced the only thing that kernels/roms can help mitigate is usage burn, radio burn (no signal) is going to drain a battery no matter what. I keep my phone on wifi at my house and get great battery life. At work, when the phone is on 3G and not getting any signal the battery dies wicked fast. between 730 and 1030 today my battery dropped from 85% to 25%. Ive also had my battery die in 3 hours flat because of no signal.

yea, I forget where i read it, (i think when i used to go to ppcgeeks forums) but there was actually a lengthy detailed rundown of real world usage of 3G vs wifi, and wifi definately draws less power.

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I took this from my first post on battery life. I wish it could be better cause I realize I barely used the phone during the 22hrs. Half of it was sleep and only ten minutes in a call and some YouTube videos. Also some music with PowerAMP.
Sent from my PC36100 using XDA App

scooter185 said:
im convinced the only thing that kernels/roms can help mitigate is usage burn, radio burn (no signal) is going to drain a battery no matter what. I keep my phone on wifi at my house and get great battery life. At work, when the phone is on 3G and not getting any signal the battery dies wicked fast. between 730 and 1030 today my battery dropped from 85% to 25%. Ive also had my battery die in 3 hours flat because of no signal.
Click to expand...
Click to collapse
After experimenting I have found out that instead of putting it in airplane mode you could just turn off 3g and it last quite a bit(at work). I only turn it on during break time. Leaving 3g makes me be lucky to leave work in double digit battery power.
from my EVO using XDA app.

jacoballen22 said:
After experimenting I have found out that instead of putting it in airplane mode you could just turn off 3g and it last quite a bit(at work). I only turn it on during break time. Leaving 3g makes me be lucky to leave work in double digit battery power.
from my EVO using XDA app.
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I second this. Pretty much don't use 3G, and sure as heck not 4G, if you don't have to. My battery will literally stand for hours at a certain percent with 3G off and screen off. I don't have a WiFi router yet but seriously thinking about getting one just for use when I'm at home.

You should do it! Lol it is good for many things not just the EVO. Ya know laptops iPod touches and stuff lol.
from my EVO using XDA app.

[KERNEL] tb kernels by utkanos (updated for CM7)

Hello.
I have compiled a few kernels for use with any of the sense based roms out right now. There are 3 choices available, feedback is appreciated. Initial reports from users I have sent these to say they improved their battery life, I have been using #1 for 6 days and confirm better life, though ymmv as usual. Support for NFS and all related config options has been removed, tun support is included. For best results use ondemand governor (default).
1) 245-1024MHz, uv:
http://platypus.memoryfire.com/kernels/245-1024_uv_utkanos.zip
2) 245-1024MHz 5 slot, uv:
http://platypus.memoryfire.com/kernels/245-1024_uv_5slot_utkanos.zip
3) 245-1228MHz 7 slot, slight OC, uv:
http://platypus.memoryfire.com/kernels/245-1228_uv_oc_utkanos.zip
6f0375f87e78fabcd644c945de5339b3 245-1024_uv_utkanos.zip
35460d9e179fde41ed4b46e8bb8c1fbd 245-1024_uv_5slot_utkanos.zip
fed74abd8b584f9afd8ef669737aa10d 245-1228_uv_oc_utkanos.zip
All changes can be followed on my github:
https://github.com/utkanos
Newest kernels will be here:
http://platypus.memoryfire.com/kernels/
*For use with SetCPU
*Good backups are always encouraged when flashing custom software
*As always, responsibility is on the user for use of this code, not myself.
If there are any requests, suggestions, comments please don't hesitate to contact me. Enjoy
-------------------------
Updated to work with CM7. thanks to Slayher for cm defconfig.
CM7: (OUTDATED, will update for new RC's soon)
1) 245-1024MHz, uv:
http://platypus.memoryfire.com/kernels/cyanogenmod/245-1024_uv_cm_utkanos.zip
2) 245-1024MHz 5 slot, uv:
http://platypus.memoryfire.com/kernels/cyanogenmod/245-1024_uv_5slot_cm_utkanos.zip
3) 245-1228MHz 7 slot, slight OC, uv:
http://platypus.memoryfire.com/kernels/cyanogenmod/245-1228_uv_oc_cm_utkanos.zip
e4f19215a68e6006831c1db073ba7ed1 245-1024_uv_cm_utkanos.zip
83cb18589dcf4361053e2c60963ff1f0 245-1024_uv_5slot_cm_utkanos.zip
0331b39e0bea29a4d480f36124fb4c87 245-1228_uv_oc_cm_utkanos.zip

Been running #1 for a few days with great results. Just switched to #3 and so far so good. Let me get some Quadrant scores up

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Add some Linpack:

Thanks for these! (you helped me out the other day on #thunderbolt channel @ andirc.net).
I personally am ready to sacrifice some performance (quadrant) to get longer battery life so I can keep my 4G on longer!
EDIT: After running this kernel overnight and for the past 12 hours, it is amazing on battery life. My battery was around 70% when I flashed the kernel, now 12 hours later and some usage (gmail non-stop, k9 mail polling every 15 minutes), 20+ apps running in background and up front, webcam widget running and updating every 15 minutes, 4G left on, battery is just now at 40%. Phone is still snappy and feels good. Thanks! I look forward to seeing how long I can go on a fully charged battery.

Gonna try these out
Sent from my ADR6400L using XDA Premium App

These are amazing. They are obviously not for the uber performance crowd who want their 2.0ghz kernel, however, they have greatly improved my battery life.
That said, i can keep 4g on all day and make it 20+ hours with moderate/heavy use.

Just so everyone knows...this guy is legit and will help you out whenever you need it. I've been running his 1st kernel for awhile now on the nonsense rom tesla coil. Because apparently the kernel (drods) that comes with that one makes your device reboot spontaneously at stock cpu speeds.
Javis

trendsetter37 said:
Just so everyone knows...this guy is legit and will help you out whenever you need it. I've been running his 1st kernel for awhile now on the nonsense rom tesla coil. Because apparently the kernel (drods) that comes with that one makes your device reboot spontaneously at stock cpu speeds.
Javis
Click to expand...
Click to collapse
Drods kernels have been very solid for me with no reboots.

Been using the 5 slot. Very solid battery with this kernel. Thank you.

Wow. This kernel rocks. No speed difference using #1, but I really thought my battery was reporting wrong. It works so well.
Sent from my ADR6400L using XDA App

had an issue while downloading trying to download the 5 slot from this site. however, utkanos is very helpful on irc and gave me another link that works!

flash #1 earlier today and so far it seems very promising as the most battery efficient kernel yet.

I wanted to post how awesome this kernel has been after a few days now...
Today, after 8 hours of battery use with some internet use, 3G (LTE OFF), and music listening (FM and Local music files)...I still have 30% battery life left!
I used the battery calibration app just to make life easier too!
http://forum.xda-developers.com/showthread.php?t=1024867
Running DAS BAMF 1.4 Remix w/ kernel #1!

5slot hangs at first HTC screen. Bad download?
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Is 1228 slot over bolted?
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jbeitel said:
5slot hangs at first HTC screen. Bad download?
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Downloaded again but froze again. Other 2 work. Help?
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Sorry about the dead link, I will update the 5 slot link, in the meantime try this one:
http://dl.dropbox.com/u/9459955/mecha/kernels/245-1024_uv_5slot_utkanos.zip

4g speed
I know "people" claim that their kernel does not effect 4g performance but after 5 consecutive tests on the 'other' one and 5 consecutive tests on the 1228 kernel here, I saw almost 2Mbps faster on this one. Whether it impacts it or not, my eyes do not deceive me. Thanks U.

Just downloaded the first one, running the latest virus rom, will check back in a few to report, thanks for these!

5 slot FL worked for me. Keeping with my 4g belief, the first thing I did was run a speed test. Got 9.93 Mbps. I don't care what others say about their kernels buy I witness theirs to be much slower 4g. The big test will be battery life. I will give feedback tomorrow. Btw I am in Detroit and test went to Chicago.
Sent from my ADR6400L using XDA App

Found out the ONE issue I have with this phone

My battery life blows and it's not for a lack of conditioning or calibration. I know how Li-ION batteries need to be calibrated and that they only last for about 300-500 charges. So I'm basically just kinda getting ****ty battery life.

Welcome to android
Sent from my PC36100 using XDA App

Indirect said:
My battery life blows and it's not for a lack of conditioning or calibration. I know how Li-ION batteries need to be calibrated and that they only last for about 300-500 charges. So I'm basically just kinda getting ****ty battery life.
Click to expand...
Click to collapse
Have you tried this method:
http://forum.xda-developers.com/showthread.php?t=712990
The Evo has a bigger, older, more battery consuming core.
Not much can be done about that.

If ur rooted throw on decks aosp rom with tiamat 3.3.7 kernel. Apparently that is the key to amazing battery life
Sent from my PC36100 using XDA App

I've tried everything. It's just a bad battery. I only get 4 hours on tiamat CM7 with undervolt by 225 and cpu set to 691-921

Yeah. A well known fact. Old news, one might say. Some steps can be taken, but it's not going to drastically change. Could buy one those huge batteries .. *cringes*
Sent from my PC36100 using xda premium

Indirect said:
I've tried everything. It's just a bad battery. I only get 4 hours on tiamat CM7 with undervolt by 225 and cpu set to 691-921
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Get a replacement? lol
Is that 4 hours with constant usage?

On and off usage (medium use) and I can't goto sprint and get a replacement. I'm stuck with bestbuy's replacement plan and I have to wait for my dad to call them.

Indirect said:
On and off usage (medium use) and I can't goto sprint and get a replacement. I'm stuck with bestbuy's replacement plan and I have to wait for my dad to call them.
Click to expand...
Click to collapse
Medium use I can easily get 16 to 20 hours.
Definitely a hardware issue

If its just a bad battery why not get another?
Sent from my PC36100 using xda premium

I can't just goto a sprint store though. It's under best buy. I mean I can see if a manager friend of mine can help me out.

Indirect said:
I can't just goto a sprint store though. It's under best buy. I mean I can see if a manager friend of mine can help me out.
Click to expand...
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Well, your issue isn't the Evo itself, it's your personal phone.

I too had a bad battery. Use or no use it lasted for 6 hours max. Said f it! Got extended battery. NOW its a manly man's phone! It's got some girth! Feels like a brick lol. But I'm also a power user. Even so, 17 hours of use on first full charge. Definitely a top mod in my book.
Sent from the Evo

Try an SBC kernel cause battery calibration isn't ur answer. Also its not ur phone its ur kernel and also the governor and oc settings u set on ur phone.
free the dirk

Deck 1.3d. Tiamat 407 SBC. Conservative governor. (Start w 384min and 998max) Play w the values a little. Battery calibration app. V6 (optional). Don't see how it could go wrong. My battery has me in love w my Evo again after almost a year of owning it. Sense is a resource hawg. Until gingersense can figure out how to get the battery life froyo sense had it wont be back on my Evo anytime soon. I lost a t9 dialer going to Aosp...the theme engine makes up for that as mixer looks nice.

No kernel, voltage modification, or ROM is going to change the fact that your battery is bad.

I'm going with what Matty said as you all don't know what I've gone through with this phone. I've gotten all of the mods I was supposed to. I did everything possible I really think it's just a bad battery

Indirect said:
I've tried everything. It's just a bad battery. I only get 4 hours on tiamat CM7 with undervolt by 225 and cpu set to 691-921
Click to expand...
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Did this not stand out to anyone else?
How on the world do you under volt that much A....
And 2 why would you set your min voltage so freaking high? Use, 245 or 128, I am under clocked to 128 614, which you hold yours constantly above that...
And E, I assume you are a power user. What is am average day like?
Sent from my PC36100 using xda premium

Indirect said:
I'm going with what Matty said as you all don't know what I've gone through with this phone. I've gotten all of the mods I was supposed to. I did everything possible I really think it's just a bad battery
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Non-SBC kernel.
Tiamat 4.07 with -75mv lower voltage.
Admittedly, I've been using my phone constantly for the past three hours.
Before that, I was at 70%.
Stock battery.

wtf is going on with my atrix down to 30% after jus 4 hrs.

so my girlfriend took my phone to school at 7 comes home at 11 nd my battery was that orange-red color i check my stats nd it shows this
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Sent from my Atrix-4G, stock 2.3.4 (rooted)

I have that same issue. Rooted Bell 2.3.4. I don't know wtf is going on, but these past few weeks my phone battery just started too **** the bed. lm going too battery calibrate when l have the time. Might need one yourself too?

DopeHack said:
so my girlfriend took my phone to school at 7 comes home at 11 nd my battery was that orange-red color i check my stats nd it shows this
Sent from my Atrix-4G, stock 2.3.4 (rooted)
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There's about 2 solid hours of screen time there, I wouldn't consider that too crazy. Did your gf realize the screen was on all that time? Your idle drain doesn't look great, try better battery stats and/or watch dog (mixed reviews).
Sent from my Supercharged CM7 Atrix

Watchdog is awesome, a must have! But yeah if you haven't calibrated you need to.

Wifi + screen on = loads of watching YouTube clips online while many apps using wifi open will definitely kill your battery.
Sent from my MB860 using XDA App

Yeah.. after root my battery has gone HORRIBLE!!!!! Every time I check my phone, I get my messages then + 10% each other time (like every hour)
Sent from my MB860 using XDA App

CM7 + juice defender pro + misc power centric tweaks... My battery drains 4-8% at night, lasts all day with normal use. And then some.
Admitedly im a minimalist though. I tore out a lot of cm7 and its already core.
Toggle background data off when not in use too. There are a lot of smaller power tweaks though, its a science and takes tweaking.
Whip that power junkie 'rix into shape!
Ps: lol! And that gps youre running destroys power.
Sent from my MB860 using xda premium

I had horrible battery life (10% every hour) as well until i flashed the latest Orange UK radio and all of a sudden my battery lasts for two days without charging. Note that wifi is off most of the time and u only use my phone to listen to music on the go, send txt messages all day long and at the end of the day i have around 70%+ battery left.
Sent from my MB860 using XDA App

battery draining too fast!!!!
hey guyz..im new to xda..
like a week ago i deleted a system file on my atrix 4g and it started to give some force closes errors..so i flashed a new custom rom named " homebase " my phone is so fast and i like it bt my battery at the same time is draining so fast last night i recharged my phone and it didnt complete till 100% it sticked at 96% anw i worked for a little bit on my cell phone then left it and went to sleep,,and this morning it was like 63%..i jst need some help is there anyone that can help me with this kind of problems..
thx anw hope someone will know about my issue i realy need help...thx again

Try UV and underclocking for screen off.
I have amazing battery life. (Darkside 2.3.5)

Jibraldor said:
Wifi + screen on = loads of watching YouTube clips online while many apps using wifi open will definitely kill your battery.
Sent from my MB860 using XDA App
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Umm how can she watch YouTube that much in school ? Ill end that one there. And @fishcwrap even if it was its timer is one minute nd my brightness all the way down even if ur contantly texting my battery doesn't die that fast nd she said she only used it to Google something once nd that was it I honestly think it has somethin to do wit the radios
Sent from my Atrix-4G, stock 2.3.4 (rooted)

xhazk said:
CM7 + juice defender pro + misc power centric tweaks... My battery drains 4-8% at night, lasts all day with normal use. And then some.
Admitedly im a minimalist though. I tore out a lot of cm7 and its already core.
Toggle background data off when not in use too. There are a lot of smaller power tweaks though, its a science and takes tweaking.
Whip that power junkie 'rix into shape!
Ps: lol! And that gps youre running destroys power.
Sent from my MB860 using xda premium
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Click to collapse
I don't have a data plan so the bg data is always off and GPS has not been on since the day I opened the UPS box its weird how airplane mode my battery would prolly last an entire week
Sent from my Atrix-4G, stock 2.3.4 (rooted)

Best Possile Battery Build

Alright guys, ive been hearing different things.. people are getting an upwards of 9 hours of battery from like using texting and that sort of stuff.. stock kernel and rom will give you 5 or 6.. Ive heard some people get 18 hours of use from texting and what not..
Basicly i just want to learn to see what different kernels and set up everyones using and to see how many up hours (like a text or 2 every minute or 2), they get out of it.
Really curious to discover new android things especially battery power with a 4.3 inch screen
Im running Chopsuey kernel with nocturnal shooter sense 3.0 rom and sitting at 768max 245minimum
(yes i made a slight topic typo D=.....)

ICS / CM7 ROM
Kernel : Tiamaat 4.1
undervolted -100mv, 825mv floor
Smartassv2 governor
Battery life: 2 days+

nice to hear you get such good battery life.. i get about 6 or 7 hours of medium usage

I get abysmal battery with every kernel except poonsense for whatever reason. Lasts me all day with texting web phone calls constantly. Seems like setcpu actually makes my battery die quicker
Sent from my PC36100 using xda premium

Same king. Idk what to do.. look
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I'm under clocked at 768 max and 245 min and running chopsuey kernel.. I really need someone to tell me some step by step. I know people getting 2 days worth on 1 charge continuous use

The screen shot is from barely using my phone..
Sent from my PC36100 using XDA App

Did you do a battery calibration? If so not download free battery calibrator, charge you phone too 100% the which is I think its 4200mah. Install setcpu? Change different governed see what works with your phone. I recommand to try different kernel see what works.
Sent from my PC36100 using XDA App

I never believe anyone's claim for 2 days of battery life on a battery of any smartphone.
The most I ever got was at least 8 hours under moderate use with about 40% to spare at the end of the day.
This was achieved using a combination of a froyo rom (myn's twopointtwo) with nets 4.3.4 havs-cfs-more-sbc kernel under-clocked with set cpu and juice defender toggling my mobile data on/off whenever it was needed.

Highest I've personally seen is 18 hours of high use
Sent from my PC36100 using XDA App

I gotten almost 3 days of battery but I had a 3500mah battery.
Sent from my PC36100 using XDA App

I'm talking about with a basic battery
Sent from my PC36100 using XDA App

If anyone wants to see 2 days+ i have screen shots, stock battery.

please and thank you lol.. and help me get your setup XD

Xplod rls3, Savaged Zen 2.2.1 cfs, 245/499 smartass. View attachment 811486
Forgot to mention, stock battery.
Sent from my PC36100 using xda premium

OK seriously now? could you please tell me how you did it.. thats like putting a double chocolate cake and a carton of chocolate ice cream in front of a diabetic who loves sweets..
Tell meee XD lol.. Ive heard of undervolting but no clue how and blah

ReapersDeath said:
OK seriously now? could you please tell me how you did it.. thats like putting a double chocolate cake and a carton of chocolate ice cream in front of a diabetic who loves sweets..
Tell meee XD lol.. Ive heard of undervolting but no clue how and blah
Click to expand...
Click to collapse
Not sure if you were asking me or teh, he would be the guy to explain undervolting. I don't use any apps or scripts to uv. Just the setup I posted. Proper battery calibration will probably do the most for improving battery life though.
Btw, I just realized those screenies were not from the Xplod rom. I believe they were from the TN stock, and I would of been running the Chopsuey kernel. Same CPU/governor settings tho.
Sent from my PC36100 using xda premium

Hmmm.. ya I just wanna be pulling 18 hours =p I would feel godly
Sent from my PC36100 using XDA App

It's so crappy right now.. that was just from sleeping over night and using these forums for a bit

ReapersDeath said:
It's so crappy right now.. that was just from sleeping over night and using these forums for a bit
Click to expand...
Click to collapse
What ROM are you on?
Sent from my PC36100 using XDA App

Nocturnal shooter sense 3.0. No one else has the issue..