Develop Bugs

Battery life

Is anyone having battery life issue other than me.I love this rom.my battery life is the only issue I have..any suggestions?
Sent from my HTC Vision using XDA Premium App

Sorry put this in the wrong spot
Sent from my HTC Vision using XDA Premium App

Wrong post bro and please tell us the ROM name not just "i just love this rom" and get a new battery they only cost 15-20 on ebay

People complain about battery way too much. If your at school, your supposed to be learning, If your at work your supposed to be working. The only time you go on your phone is if someone calls and maybe to text. If you use your phone this little while your at work or school, then your battery should be perfectly fine. If your at home using your phone like a hobo that never touched an iphone, then you should have a charger. if you use your phone for navigation and it uses a lot of your battery, then get a phone charger. Also, roms do not affect battery life. The only reason it may seem so is because your battery meter needs to readjust itself after flashing.

[Q] Battery Life Problem

I am using the set up in my signature and I am getting horrible battery life. I might change roms (as you all know) because of this...it sucks. What can be the cause of this? I have had my evo for 10 months now so I am wondering if it could be my stock battery. It could be the kernel? Who knows...
Here is some information:
No wake lock problem
Wifi at home
3G outside
Calibrated it once since I flashed this rom
Battery decreases 3-4% overnight when sleeping
Moderate to Heavy user: texting all day, 2 hours of internet, XDA, constant emails, news, engadget, and youtube
I can see the battery life decreasing at a rate of maybe 7-10% per hour when I use it
Starting to decrease much more than it used to
***Picture: Subtract 7 hours from the 18 because it was sleeping overnight***
Any suggestions would be appreciated. You guys have provided plenty of insight for me and I thank you all for that.

Your battery life actually isn't that bad depending on how much you use your phone. Buy another battery on ebay and see if that helps. If you're looking to compare usage, I'd buy a stock battery instead of a cheap Chinese one, that way your tests will be accurate.
If your battery life just sucks and you want more juice, buy a few cheap batteries and an external charger and switch batteries when you get low. That's what I do, and it's great not having to turn radios off or do other tricks just to last through the day.
(from... Evo/MIUI/Tapatalk)

You can try changing roms...I get 1day 5hrs roughly on CM7, stock battery. For how're you're using the phone, that seems about decent, in my opinion. As plainjane suggested, you can get some other batteries and swap them out.

Youre lucky! MY battery lasts like 6 hours with moderate use

teh roxxorz said:
You can try changing roms...I get 1day 5hrs roughly on CM7, stock battery. For how're you're using the phone, that seems about decent, in my opinion. As plainjane suggested, you can get some other batteries and swap them out.
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I'm actually thinking of CM 6

Solicitous said:
I'm actually thinking of CM 6
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With that battery life? Perhaps, but never in my days of rooting have I run CM6. I'm pure CM7. Not biased by any means; I've tried some things, but CM7 is my preference, and if you want a screen shot I can provide.

teh roxxorz said:
With that battery life? Perhaps, but never in my days of rooting have I run CM6. I'm pure CM7. Not biased by any means; I've tried some things, but CM7 is my preference, and if you want a screen shot I can provide.
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Sure a screen shot would be good. Don't get me wrong, I like CM7 but I read CM6 with the snap kernel provides amazing battery life. To each his own I suppose.

Solicitous said:
Sure a screen shot would be good. Don't get me wrong, I like CM7 but I read CM6 with the snap kernel provides amazing battery life. To each his own I suppose.
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Sure thing. http://forum.xda-developers.com/showpost.php?p=13722006&postcount=826
I don't have the newer one, as my phone is in the middle of doing some things, but that kind of battery life is attainable on CM7.

I'm having problems too... I'm running on Myn warm 2.2 rls 5 and it's not charging anymore! Battery life also sucks ass too! It's getting worse by the days. I plugged my phone in to charge last night, and woke up to 26 % WTH!? I don't know if it's my battery or the rom. Help?

Pandachaser said:
I'm having problems too... I'm running on Myn warm 2.2 rls 5 and it's not charging anymore! Battery life also sucks ass too! It's getting worse by the days. I plugged my phone in to charge last night, and woke up to 26 % WTH!? I don't know if it's my battery or the rom. Help?
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Click to collapse
It could be your charging port. Those things break way too easily. When it's charging, check it every few minutes to make sure the charging light is staying on. One of my Evos had a bad port and when it first started happening, I would catch the light turning off then back on.
It could also be your battery. If you have another one you can test, see if it's any better. Or you can take the battery to Sprint and have them test it. Replacement batteries are pretty cheap if you get them on ebay.
(from... Evo/MIUI/Tapatalk)

Hey, thanks for the suggestion. I sure do hope it's the battery. I mean I do use it quite often to watch movies and what not so I'm not surprised if it's bad but I know it can be the port too because lately it's been acting crazy on me. Sometimes the light will be on, but it really doesn't end up charging. I don't know what it is. So if I take it into the sprint store to check the battery life and they won't say anything about my phone being rooted? Lol.

Pandachaser said:
Hey, thanks for the suggestion. I sure do hope it's the battery. I mean I do use it quite often to watch movies and what not so I'm not surprised if it's bad but I know it can be the port too because lately it's been acting crazy on me. Sometimes the light will be on, but it really doesn't end up charging. I don't know what it is. So if I take it into the sprint store to check the battery life and they won't say anything about my phone being rooted? Lol.
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Even though it'd hardware, I'd unroot it, just in case they make a note of it for future services.

teh roxxorz said:
Even though it'd hardware, I'd unroot it, just in case they make a note of it for future services.
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Yeah, I thought so too. It's still slowly charging.

Pandachaser said:
Yeah, I thought so too. It's still slowly charging.
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Have you wiped you battery stats after reaching 100% and then let it fully die to calibrate the battery?

teh roxxorz said:
Have you wiped you battery stats after reaching 100% and then let it fully die to calibrate the battery?
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Damn I forgot to do that. I charged my battery from 10%. I should calibrate again
Sent from my Evo

Solicitous said:
Damn I forgot to do that. I charged my battery from 10%. I should calibrate again
Sent from my Evo
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Yea, whenever you switch roms, its best to do that, especial when doing sense <-> aosp.

teh roxxorz said:
Yea, whenever you switch roms, its best to do that, especial when doing sense <-> aosp.
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Thanks for the tip man
Sent from my Evo

Solicitous said:
Thanks for the tip man
Sent from my Evo
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Never a problem man.

teh roxxorz said:
Have you wiped you battery stats after reaching 100% and then let it fully die to calibrate the battery?
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No, I'm not sure how to do so.

How do you maintain your battery?

I think this havent been discuss.. my question is: what do you guys do to keep your battery thru the whole day? I have seen people said that they keep their phone alive for at least a 1.5 or 2 days????
Sent from my Incredible using Tapatalk

1107963 said:
I think this havent been discuss.. my question is: what do you guys do to keep your battery thru the whole day? I have seen people said that they keep their phone alive for at least a 1.5 or 2 days????
Sent from my Incredible using Tapatalk
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There are several threads on this topic. Here is a current and popular one: How Do You Charge Your DInc?

Yeah but thats on charging it.. not wat u do to keep it.. like i read in another forum that some people disable gps and stuff like that... thats what i mean.. and thank you for ur post!!
Sent from my Incredible using Tapatalk

1107963 said:
Yeah but thats on charging it.. not wat u do to keep it.. like i read in another forum that some people disable gps and stuff like that... thats what i mean.. and thank you for ur post!!
Sent from my Incredible using Tapatalk
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No problem for the link. There are many ways to help save battery. I for one turn off GPS, Bluetooth, and mobile data when I'm not using them. I use AOSP Roms mostly because they give me better battery life, I use Incredikernel because it regulates how my battery works more efficiently, and I also have an extended battery. Wiping your battery stats every once in a while can help you prolong your battery life as well.
Sent from my ADR6300 using XDA App

optimized sense with the stock kernel will warrant some seriously nice battery life. thats how I maintain mine.

Depends on what I do, through a normal day (texting, few short calls, 30 minutes of music streaming, less than 5 minutes of GPS) it'll last ~1.5-2 days with CM7 nightlies and chad's incredikernel - underclocked 128MIN - ~800max
But if I use GPS all day, which I sometimes do- it'll drop 50% after 4-5 hours of use (this means screen-on, GPS running, also uses 3G data for maps) and I'll usually need to plug it in before the day ends.
I have a 1900mAh battery that fits in the stock case, so this isn't what I get on the stock 1300mAh battery.
If you can't last it through the day it usually means that you are a very heavy user (you like browsing the web all the time, streaming music, texting, watching videos) OR you have a setup that likes to eat your battery.

I need two of my 3 batteries to make it through one day. I use juice defender, and when I stream pandora at work I turn it off cause it interferes. I always have a charger handy too
Please lengthen your message to at least 10 charters

cvbcbcmv said:
people would like say how ugly my phone was in public.
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This made me me lol!

I actually didn't know that the 2150 was smaller than the 3500. That thing is a beast, my friend uses one and his phone is at least twice as thick as mine.

If you are rooted, you can update the radio, I've noticed much better performance out of the updates cause they seem to manage gps and wireless better. The radio update turn off wireless if you are out of range and turn off gps if no app is using it.

k_nivesout said:
I actually didn't know that the 2150 was smaller than the 3500. That thing is a beast, my friend uses one and his phone is at least twice as thick as mine.
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yeah but you have to take into account how slim the stock incredible is. Without any case and with only the stock battery it's too thin (for me at least). Hard to hold onto the sides and I accidentally press the volume buttons often. I've also dropped it 3 times with that setup.
With a case it's great and with the 2150 it was great, loved both setups but I'm liking the new style now with the 1900 and case so that's where I'm sticking at.

Does wiping the battery stats help the battery life? Or is it just so the phone better understands how much battery is left?

Stock battery has always worked best for me.. I also have the seido 1750 mah as well as some chinese versions of 1500 mah.. I use them as backups.. I'm currently using miui as my rom and the battery life is great... I usually get about 24hrs before i'm down to 20%. No way I would make the whole day on previous roms..

I take cues from battery university. Basically, don't let the battery go below 20% shallow charge /discharge
Sent from my Incredible

The kernel your running makes a huge difference in battery life. Been using Ziggy's BFS for quite some time now with the Seido 1750. Gets me though the whole day
HTC Incredible V1.0 amoled

Battery Life

How do I save battery on my EVO?
Sent from my PC36100 using Tapatalk

turn off auto-sync, turn brightness down to about whatever you can deal with, get juice defender (free in market), get droid wall (also free), get custom kernel with undervolting, get better battery

Juice defender never did **** for any of my phones. The things it does to save battery is common sense, disable wifi, bluetooth, etc. And it kept turning off my data service even when I unlocked the screen.

Buy extra batteries and an external charger.
Run battery down, put in new battery.
Sent from my PC36100 using Tapatalk

Indirect said:
Juice defender never did **** for any of my phones. The things it does to save battery is common sense, disable wifi, bluetooth, etc. And it kept turning off my data service even when I unlocked the screen.
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you're right that juice defender does the basics as you mentioned but alot of people dont know to turn them off

plainjane said:
Buy extra batteries and an external charger.
Run battery down, put in new battery.
Sent from my PC36100 using Tapatalk
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I should make a solar battery back, being in engineering and all. Make the cell on the battery, and have a clear case, or double wire it through the case...hmm, you just gave me an idea for a project. Thanks.
this idea copy righted be me 2 Sept. 2011 at 12:26am EST. Suck it apple.

teh roxxorz said:
I should make a solar battery back, being in engineering and all. Make the cell on the battery, and have a clear case, or double wire it through the case...hmm, you just gave me an idea for a project. Thanks.
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That would be sweet! Hurry up & patent it before Apple steals it from you.
Oh, and I expect one in the mail when it's finished
Sent from my PC36100 using Tapatalk

plainjane said:
That would be sweet! Hurry up & patent it before Apple steals it from you.
Oh, and I expect one in the mail when it's finished
Sent from my PC36100 using Tapatalk
Click to expand...
Click to collapse
My gold star winner gets 2 on the house.

For me, nothing seems to be helping.
I've done everything I could think of or find to try to aid with battery life. I've tried all sorts of different ROMs/kernels, calibrated the battery, went through several cycles before determining anything, underclocked, even got an extended battery...
In most cases, the battery life is very nice when the display is off. Today I lost 2% after an hour (with Wifi on). However, I turn on the display, and even if it's completely idle with the lowest brightness setting, it drains like mad. So I can get a good battery life if I leave it in my pocket and look at it occasionally, but I know that's not what people mean when they say they're getting great battery life.
Something just isn't adding up.

Well the way I saved battery life was the following
CM7 rom
Tiamat kernel sbc
Setcpu for root users
From there I lowered my CPU speed.
Doing this gave me a full day bettery.
Sent from my PC36100 using XDA App

I went and installed a Seidio 3500 mAh battery and get 2 days without a charge (heavy use). A bit bulkier, but worth it for me.

Power from Battery, commands are from Software.
Edit Software commands, the hardware(battery) follows.
Sent from "Mecury" using XDA prem.

[Q] Charging Overnight?

Does anyone know if charging this phone overnight will "mess up" the battery , because I use an alarm every morning and I need the phone to be on when I wake up. I checked at a lot of sites ( and of course xda too) but i couldn't find the final answer?

samsungepicgeek said:
Does anyone know if charging this phone overnight will "mess up" the battery , because I use an alarm every morning and I need the phone to be on when I wake up. I checked at a lot of sites ( and of course xda too) but i couldn't find the final answer?
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No it will not. It has a charge script that stops when it reaches 100% then monitors the battery after that and will trickle charge when it drops a couple of percent.

Actually this is a process used to calibrate battery when you first buy one or is the first time you buy a phone. You drain it and charge it overnight. I do this too but not recently because airplane mode allows for no percentage drop..... I don't believe it is harmful but may prove to be over an extended period as are many things. Id say just turn the phone on airplane mode and it shouldn't drop but 1-2 if any percentage.
Sent From My Cyan Samurai

No it is not harmful. However any rechargeable battery wears over time. I have charged my phone overnight since the September 2010 without issue.

No it will not harm it is what I discovered
Here are some sources that say it will not damage it:
http://answers.yahoo.com/question/index?qid=20100408214147AAiiCis
http://news.tigerdirect.com/2008/02...ugged-in-all-the-time-will-harm-your-battery/
And some that say the regulator chip may be harmed:
http://answers.yahoo.com/question/index?qid=20100408214147AAiiCis
http://daily-grind.net/does-leaving-your-laptop-plugged-in-shorten-its-battery-life/
Honestly for me to say, its your choice...
I leave mine in, it's much more convienient...

A general charge overnight will not harm ur battery. But every now and then..u want to perform a charge cycle. Fully chargee it, and let it drain completely. U do this twice. It just basically resets the battery cells. Our phones use a lithium-ion battery plus..its the improved lith battery.
Sent from my SPH-D700 using xda premium

androidmaster1 said:
A general charge overnight will not harm ur battery. But every now and then..u want to perform a charge cycle. Fully chargee it, and let it drain completely. U do this twice. It just basically resets the battery cells. Our phones use a lithium-ion battery plus..its the improved lith battery.
Sent from my SPH-D700 using xda premium
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NO. NO. NO. Uberpinguin, the one who posts cm7, hates battery calibration, and I'll preach his message for him. Cycling the battery is stupid, it wears life, and wiping battery stats is stupid. Each battery has a specific uuid (I think that's what it is) that tells batterystats.bin what battery it is, and then it THEN locates the info it needs. Not "oh hey, my phone is calibrated for someone elses battery".
Sent from my SPH-D700 using Tapatalk

ugothakd said:
NO. NO. NO. Uberpinguin, the one who posts cm7, hates battery calibration, and I'll preach his message for him. Cycling the battery is stupid, it wears life, and wiping battery stats is stupid. Each battery has a specific uuid (I think that's what it is) that tells batterystats.bin what battery it is, and then it THEN locates the info it needs. Not "oh hey, my phone is calibrated for someone elses battery".
Sent from my SPH-D700 using Tapatalk
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Click to collapse
Explain ****ty battery life then when i don't calibrate it when i flash a rom.
When i flashed over to CM7 my phone was getting on average 10-14Hrs depending on usage if i was heavily using it it would be from 6-8Hrs.
After i calibrated it i went from 6-8 on heavy to 12-15 on Heavy and medium usage went from 10-14 to 18-20Hrs. And minimal use ending me up with 24+Hrs
So please explain? because i hate calibrating it but it works.

Ugo, have u ever hard tested a battery? My assumption is no. Are u aware that per manufacture and engineering specs, sometime u have to do calibration. Have u performed appropriate research? I will link 1000 sources that will stat, u should cycle battery once in awhile. Its like a pc..there is the hardware function and there is the software function. Are u an advanced mobile technician? Are u. A mobile engineer? I use to be a technician. Ur basing ur statment from someone else. Have u done this "yourself"?
Sent from my SPH-D700 using xda premium

When i ve done calibration...and cycling, I increased batter life by 75%
Sent from my SPH-D700 using xda premium

Battery drain always seems terrible for a short time after flashing a new rom. It does clear up.
Letting your battery drain completely is NOT good for your phone, though I'm unaware of what how it may affect the battery itself. But as I understand it, it is not necessary in any way for the battery itself- so it's useless and doing so will only help you corrupt the data on your phone.
I've been charging mine nightly since Nov 2010 and it's fine.
Those of you with serious battery drain - do yourself a favor and try staying on the same rom for more than 36 hours.
sent from my secret underground bunker

mjben said:
Battery drain always seems terrible for a short time after flashing a new rom. It does clear up.
Letting your battery drain completely is NOT good for your phone, though I'm unaware of what how it may affect the battery itself. But as I understand it, it is not necessary in any way for the battery itself- so it's useless and doing so will only help you corrupt the data on your phone.
I've been charging mine nightly since Nov 2010 and it's fine.
Those of you with serious battery drain - do yourself a favor and try staying on the same rom for more than 36 hours.
sent from my secret underground bunker
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Click to collapse
That is an EXT4/journaling thing and has nothing to do with your phone. MTD and RFS do not have this problem. At time of purchase the Techs and Samsung recommend this battery cycling and running the battery all the way down.
Sent from my SPH-D700 using XDA App

androidmaster1 said:
Ugo, have u ever hard tested a battery? My assumption is no. Are u aware that per manufacture and engineering specs, sometime u have to do calibration. Have u performed appropriate research? I will link 1000 sources that will stat, u should cycle battery once in awhile. Its like a pc..there is the hardware function and there is the software function. Are u an advanced mobile technician? Are u. A mobile engineer? I use to be a technician. Ur basing ur statment from someone else. Have u done this "yourself"?
When i ve done calibration...and cycling, I increased batter life by 75%
Sent from my SPH-D700 using xda premium
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
Will you please post those 1000 sources? Along with a photo of your tech degree? Also 75% difference? The only thing that's going to give you nearly double your battery is a larger capacity battery.
Sent from my SPH-D700 using Tapatalk

I wasn't aware that a tech degree ruled over experience. How long have u worked with mobiles on the tech side? U want some sources? Ok... gizmodo, lifehacker, phonescoop, rcr wireless, all manufactures, motorola systems engineering site, lg engineering site, wireless week, android police blogs. Buddy ill be here all day posting.
Sent from my SPH-D700 using xda premium

U ever full repair a board, or inner cell reseted a battery? I have. Ever work with an ohms, voltage sensor machine? How about a resistor reader?
Sent from my SPH-D700 using xda premium

I'm not going to go any further in this argument with u. I've made my point, and that's all I'm saying to u.
Sent from my SPH-D700 using xda premium