Suddenly bad battery life = battery gone bad? - Captivate Q&A, Help & Troubleshooting

Basically, a few weeks ago I flashed assonance 5.0 and my standby battery life was terrible. The battery would die by the time I got out of school which is around 7-8 hours of standby time.
So hoping to solve this problem. I flashed the captivate version of doc's rom and I have the exact same battery life. I have recalibrated the battery many times as well.
Sooo, do you think my battery has gone bad?
And if so, any good places where I could get a spare?
Sent from my SGH-I897 using XDA App

Many have posted eBay has some good deals.
I still suspect that many of these phones were shipped with crap batteries hence the differences with people using the same roms having much different battery life.

cappysw10 said:
Many have posted eBay has some good deals.
I still suspect that many of these phones were shipped with crap batteries hence the differences with people using the same roms having much different battery life.
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Click to collapse
Well the thing is that my battery life wasn't terrible before. Or not this bad at least :x
Sent from my SGH-I897 using XDA App

Have you at least tried reflashing to stock to see if the problem is with the roms or with your battery?

Not for an extended period... but the thing is I read through some of the rom threads. And if it was the rom people would be complaining about battery life, but no one is :/
In fact, it is quite the opposite...
Sent from.... "Waiting for Location"...

crazililazn said:
Sent from.... "Waiting for Location"...
Click to expand...
Click to collapse
That's awesome.

What, you don't like my phone sig?
Sent from a phone somewhere in the universe

crazililazn said:
Basically, a few weeks ago I flashed assonance 5.0 and my standby battery life was terrible. The battery would die by the time I got out of school which is around 7-8 hours of standby time.
So hoping to solve this problem. I flashed the captivate version of doc's rom and I have the exact same battery life. I have recalibrated the battery many times as well.
Sooo, do you think my battery has gone bad?
And if so, any good places where I could get a spare?
Sent from my SGH-I897 using XDA App
Click to expand...
Click to collapse
kernel related or bad battery!!!!

Well i am using Glitterball's latest kernel before Firebird. Or the stock kernel that came with the Doc's Captivate Rom 7.0
Either way, there has been a huge drop in battery life and I do not think it is kernel related, because on the Assonance 5.0 rom, i was running Setiron's 1.4.7 kernel with the exact same problems with battery life :'(

This is highly dependent on how you have your settings on your phone.
1) Wi-Fi constantly looking for an active network connection? At least have it go to sleep when the phone goes on standby. I only turn mine on at home or otherwise need and have access to it. Otherwise its off.
2) GPS running all the time? Personally, I rarely ever need to use it, but it runs great when I do.
3) Display at recommended brightness or higher? Recommended or less is best as far as saving battery power. I like mine all the way down. Don't need/want it any brighter.
I even tend to use only darker wallpapers as bright and lighter colors pull more power on AMOLED screens. This makes a little bit of difference. How much I don't know, but I do know that it does. Sometimes the above settings like to change on you. It's a good idea to check 'em once in a while.
While it's usually always around 60% full when I go to bed, I still charge my cell every night.
I have found that the speedmod kernel is real good for conserving battery power. Not downing other kernels as they're all real good. Speedmod handles battery consumption better in my experience.
Have you installed any new software that might be accessing the network checking for updates/feeds, etc?

Cozmo1 said:
This is highly dependent on how you have your settings on your phone.
1) Wi-Fi constantly looking for an active network connection? At least have it go to sleep when the phone goes on standby. I only turn mine on at home or otherwise need and have access to it. Otherwise its off.
2) GPS running all the time? Personally, I rarely ever need to use it, but it runs great when I do.
3) Display at recommended brightness or higher? Recommended or less is best as far as saving battery power. I like mine all the way down. Don't need/want it any brighter.
I even tend to use only darker wallpapers as bright and lighter colors pull more power on AMOLED screens. This makes a little bit of difference. How much I don't know, but I do know that it does. Sometimes the above settings like to change on you. It's a good idea to check 'em once in a while.
While it's usually always around 60% full when I go to bed, I still charge my cell every night.
I have found that the speedmod kernel is real good for conserving battery power. Not downing other kernels as they're all real good. Speedmod handles battery consumption better in my experience.
Have you installed any new software that might be accessing the network checking for updates/feeds, etc?
Click to expand...
Click to collapse
1)I always had my Wifi sleep policy on never. So its not what is affecting the battery life
2) Never have GPS on unless i need it. Heck, when i need it, it never works.
3) nothing that i didnt have before.
Basically, I haven't changed anything to cause the decrease in battery life.

Your two biggest drains on battery are WiFi (especially when consistently seeking - any new access points where you leave it on standby all day?) and your display. Could it be your battery? Sure. Go exchange it at AT&T. They shouldn't have a problem exchanging it for you
Sent using XDA app on a modified Assonance 5.2 ROM

Cozmo1 said:
Your two biggest drains on battery are WiFi (especially when consistently seeking - any new access points where you leave it on standby all day?) and your display. Could it be your battery? Sure. Go exchange it at AT&T. They shouldn't have a problem exchanging it for you
Sent using XDA app on a modified Assonance 5.2 ROM
Click to expand...
Click to collapse
Well the thing is. I have never had this battery life with my Wifi settings left untouched. So yeah, i will probably get a new battery from AT&T tomorrow and report back if it was the battery or not :]

give this thread a quick read, its more based around 2.2.1 roms but you could find some good information
http://forum.xda-developers.com/showthread.php?t=884816

Related

[Q] Looking for the most battery efficient rom/kernel combo

I am going to be traveling in Asia for a month. I don't need any of bells and whistles and I want a phone that is very stable, very energy efficient and GPS camera definitely has to works. Which rom/kernel will you recommend? any setting tricks? Thanks
I have tried Rod's MiuiMod, CM6.1.1, CM7 and many others.
I found that CM7 + WM 1/6/2011 kernel gives me the best battery life, but CM7 is still not in stable stage yet.
I have had the most battery life with Enomthers Rom, currently he is away on personal responsibilities but his latest stable rom is very battery efficient!
I have no recommendation as to kernel/rom combinations, but for long battery life I use this:
http://www.amazon.com/Seidio-Innocell-Battery-Google-Replacement/dp/B003FSTBP4/ref=sr_1_2?ie=UTF8&qid=1296521084&sr=8-2
I got really tired of barely making through a day without having to recharge so I bought one of these. I got mine for $61 on Amazon and free shipping. It's 3200mah which is over twice the stock battery. My first full charge/discharge cycle I got over 34 hours of moderate usage and it's supposed to get better after a few charge cycles. It does make your phone about 30-40% thicker (comes with it's own custom battery cover), but for the battery life you get it's well worth the added thickness. I also find it's a little easier to hold on to.
Anyway, maybe not the solution you're looking for but for me it was well worth the money.
Just my 2 cents.
phburks said:
I have no recommendation as to kernel/rom combinations, but for long battery life I use this:
http://www.amazon.com/Seidio-Innocell-Battery-Google-Replacement/dp/B003FSTBP4/ref=sr_1_2?ie=UTF8&qid=1296521084&sr=8-2
Just my 2 cents.
Click to expand...
Click to collapse
That's one big battery Thanks tho, but I want my N1 to stay small.
I second the recommendation for Enomther's. Rock-stable.
I have no combo recommendation cuz I haven't found a really good one yet. Right now I'm using cm6.1 and wild monks kernel. It's been decent for me. But I suggest using set cpu, put on power save mode when you don't use the phone. It'll be there forever. Turn off data connection and gps as well. Also using less like half the animation helps speed up the phone and saves battery too.
Ps I'm combining inexus theme too and their icons plus the animations are amazing! My phone looks colorful as hell!
Sent from my Nexus One using XDA App
spx2000 said:
That's one big battery Thanks tho, but I want my N1 to stay small.
Click to expand...
Click to collapse
Lol yea it does add some bulk but it sure is reassuring to know I don't have worry about my battery dying before the day is over. I use my phone a lot and don't have time to really recharge it much and I don't like the idea of carrying extra batteries so this works very well for me.
I haven't done too many Roms, but miui has given me the most battery life out of stock, cm and miui.
I've been travelling and I managed to get 4-5 days with minimal calls and very light usage. If you use it normally with wifi and regular calls, 2-3 days is usually the limit.
Both these numbers are with auto airplane mode during my sleep hours.
Sent from my GT-P1000 using XDA App
What i have heard is that CM7 is 20-30% more efficient with battery life than CM6
Not true
Sent from my Nexus One using XDA App
That really is a personal opinion.
xzr3b0rnzx said:
Not true
Sent from my Nexus One using XDA App
Click to expand...
Click to collapse
In my personal opinion, CM7 Nightlies are really stable. After a real heavy usage i.e. playing games, surfing, calls, messages, i get about 15 hours a day.
My phone is fully charged when I leave at 8 and by 8 pm battery will be somewhere between 40 and 45 % left.
Bugs are there with CM7 Nightlies but so far I haven't had any problems with it.
Recently I've been through about 3 roms, and of the three (rod's, micromod's own GB aosp, and leo's GB aosp, leo's gives me the best battery life.
It might be because he incorporated the battery driver, though.

[3xQ] Battery Consumption

Hello everyone,
I'm running some tests to see the battery consumption on my Galaxy S i9000. I'm using the gingerbread version of darkys ROM.
Firstly, what do you think of the battery life? In this specific test I used the phone in a very light way, made some messages/calls and read few mails.
Secondly, is it normal to have depressions in the battery chart that display less battery than it shows later? How is it computed? Isn't just some logic level of the voltage battery?
Lastly, in the case of buying another battery, is it worthless to be genuine?
Thanks a lot
I have same qestion like you, in the another thread....
http://forum.xda-developers.com/showpost.php?p=13862717&postcount=30
Regards
miro666 said:
I have same qestion like you, in the another thread....
http://forum.xda-developers.com/showpost.php?p=13862717&postcount=30
Regards
Click to expand...
Click to collapse
Sorry! Obviously I didn't searched properly. Hope someone can clarify us
Is it a gingerbread issue?
Even big batteries will "recover" after heavy use so ur graph is quite normal.
Also be aware that if the battery calibration isnt xorrect then that will lead to weird graphs too. E.g. Losing 1% over 8hrs after flashing a new rom is most likely due to inaccurate battery calibration.
Sent from my GT-I9000 using XDA App
When I install a new rom the battery stats are always deleted? Or it depends?
I also having the same prob...batt consumptions are always the main concern when come to flashing a new rom...Darky's can only last me for 1day with heavy usage and recently flashed to MIUI which can only last for <8hours with the same usage...im not sure why this happen but I am trying with different kernels and see which is the best combination...
I just installed a new gingerbread ROM and guess what.. Using push, wi-fi all the time, gps, 1h youtube video, sms, video call... The battery never ends!! As I'm writing the battery is still 15%. It's amazing the gingerbread in terms of battery consumption. Obviously, something in the other ROM was not right! Guess I'll stick to this battery a little more time.
Btw, the battery stats are pretty normal, no depressions..

[Q] What to do Against battery drain?

I now have one week to the Nexus One bought secondhand. It suits me perfectly stand alone I have a little trouble with the battery life of the phone. Morning when the phone is 100% and I come out of school (14:30 hours) the battery is still around 20%. I find this a bit short. Ok, I'll use him at school (bit Internet, twitter refreshes every 9 minutes)
There is an automatic task killer, and that helps a bit but I think there are about 80% after 8 hours battery life is a bit much. Me internet is also constantly and I really like to keep.
The battery is probably not because I've got 2 batteries and they both give the same result.
Anyone have any idea what I can do?
I've been a bit inet searched but not really found anything. I did see somewhere a separate battery behind the phone, but I'm not waiting because that makes him a bit heavier and uglier.
10% per hour is pretty poor battery life. Are you running stock Android? 3rd party firmwares can give you much better battery life (the latest versions of CyanogenMod are using less than 1% per hour when fully idle).
But there are things you can check. Have you looked in Settings -> About phone -> Battery usage? If you are using Gingerbread and you look at the graph, if there is a solid line (or mostly solid) next to the "awake" portion, it means that your phone isn't properly entering its low powered state. Download spare parts from the market and check out partial wake usage under the battery history section of that app.
Please post your screen on time value from the battery menu so we can see how long your screen is on.
I would say to go and disable background data. Disabling this will definitely improve your battery life. Of course, you aren't going to get you twitter updates but aside from that, the battery life should improve.
Sent from my Nexus One using XDA Premium App
FLAC Vest said:
I would say to go and disable background data. Disabling this will definitely improve your battery life. Of course, you aren't going to get you twitter updates but aside from that, the battery life should improve.
Sent from my Nexus One using XDA Premium App
Click to expand...
Click to collapse
While it is true that battery life would improve if Background Data was disabled (or limited via a program like Juice Defender), it doesn't take into account his actual problem. Unless it is a ton of apps constantly downloading that is keeping his battery usage in the toilet, this will only yield a slight improvement. I believe the cause is is an app (or apps) that prevent his phone from entering the low powered sleep state.
I don't know what stock Android gets from completely idle use (haven't run it since July last year), but a basic CyanogenMod install would sip between 1-2% per hour with the latest stable and the latest nightlies, some are reporting 1% every 2-3 hours when the phone is left alone (due to a fix that lets the microphones go into a deep sleep state).
Twitter refreshing every 9 minutes can not be helping, that said I doubt that's your entire issue but reducing the refresh rate should help quite a bit.
If you bought it used, it could be a bum battery. Not sure i know what apps work best to find out that info. Anybody?
Estimated Prophet Hawk said:
If you bought it used, it could be a bum battery. Not sure i know what apps work best to find out that info. Anybody?
Click to expand...
Click to collapse
The battery app in my sig is the only one that reads the chip inside your battery to tell if it's legit or not, what the battery age is, etc. Needs root to work though.
Estimated Prophet Hawk said:
If you bought it used, it could be a bum battery. Not sure i know what apps work best to find out that info. Anybody?
Click to expand...
Click to collapse
You can also get Battery Left from the Marketplace and when it gets calibrated it gives you a time until death number and some other features.
Sent from my Nexus One using XDA Premium App
Start by getting rid of the task killer.
Sent from my Nexus One using XDA App

Rom with the best battery life

I don't know If this thread has already been created if so please direct me to that thread.
So I used to think CM6 had the best battery life so I flashed 6.1.0 but not much battery life change so im starting to think that maybe it was actually cm 6.0.0 that had best battery life but im unable to find it so I can test it. So im here asking you all what Rom has brought you the best battery life to your cdma hero no matter if its 2.2 or 2.3
CM + AOSP = DABIZZNIZ
I would like to know what's your measure of "best" battery life?
try using aosp - jaybob's rom, best rom with battery life, used it pretty heavily and got 15 hours
andythegreenguy said:
I would like to know what's your measure of "best" battery life?
Click to expand...
Click to collapse
My measure of best battery life is not losing 10% of my batery life doing nothing. I remember when my battery would be be at 40% I go to sleep wake up and its about 30%, now its dead by the time I wake up
CM + AOSP = DABIZZNIZ
Majin101 said:
try using aosp - jaybob's rom, best rom with battery life, used it pretty heavily and got 15 hours
Click to expand...
Click to collapse
Do you mind posting the link for that, thanks in advance
CM + AOSP = DABIZZNIZ
http://forum.xda-developers.com/showthread.php?t=1090234
don't need to flash the kernel since it's already in the rom. Just do a full wipe and bam ! I'm actually trying the latest one (june-08) but the june 4 version gave me that 15 hour
personally i have found that the rom you choose itself doesnt really matter, its more about your personal usage, i.e what apps u have running, cpu settings, etc. i usually get around 15-20 hours battery life with pretty heavy mp3 use, lots of texting, and about two hours or so actually on the phone. but i make sure i leave data/wifi/gps etc. off unless i need it. also, its a good idea to check and stop apps that automatically load with the phone that you dont need. imho the only roms that seem to drain the battery quicker are the sense based ones, at least from my own experience.
*using aosp - jaybob's rom 06/08
Majin101 said:
http://forum.xda-developers.com/showthread.php?t=1090234
don't need to flash the kernel since it's already in the rom. Just do a full wipe and bam ! I'm actually trying the latest one (june-08) but the june 4 version gave me that 15 hour
Click to expand...
Click to collapse
Much thanks man im going to check it out and flash tonight
xfrobex said:
personally i have found that the rom you choose itself doesnt really matter, its more about your personal usage, i.e what apps u have running, cpu settings, etc. i usually get around 15-20 hours battery life with pretty heavy mp3 use, lots of texting, and about two hours or so actually on the phone. but i make sure i leave data/wifi/gps etc. off unless i need it. also, its a good idea to check and stop apps that automatically load with the phone that you dont need. imho the only roms that seem to drain the battery quicker are the sense based ones, at least from my own experience.
*using aosp - jaybob's rom 06/08
Click to expand...
Click to collapse
>> i basically do the same you are talking about but my battery only last about 6hrs for the day, i leave all those stuff off wifi gps etc. but only get 6hrs which suck
aosp-cmod-heroc-20110523
been using aosp-cmod-heroc-20110523,,,works pretty good for me. been getting about 10 hrs. with normal use. you can get it from rom managers downloads. just a thought
drlzanej said:
been using aosp-cmod-heroc-20110523,,,works pretty good for me. been getting about 10 hrs. with normal use. you can get it from rom managers downloads. just a thought
Click to expand...
Click to collapse
Is that the 2.3.4 aosp rom that recently release? Because im trying it, its really smooth I like it
Hungry Hero Eating Gingerbread Cookies
jamega2f said:
>> i basically do the same you are talking about but my battery only last about 6hrs for the day, i leave all those stuff off wifi gps etc. but only get 6hrs which suck
Click to expand...
Click to collapse
I was thinking about starting a new thread about this, but you are explaining EXACTLY what I am going through. I wake up today (after leaving my phone charging at night) and turn on my phone, and first thing I see is an 80% battery (this is a normal occurance). After literally doing NOTHING on it all day (except for a 30 minute call) it turns off by itself at 20%.... after 8 hours. So while I got 2 hours better than you, keep in mind that I did virtually nothing. What is worse about it is i'm supposedly using the "best rom" for battery life (AOSP 2.2. + battery tweak).
I've wiped battery stats (after reading the correct way to do it) and checked the health of my batter (reads as "good") and i'm still clueless. I'm wondering if I should even waste my money on a battery and hope that's it? I've only had the phone exactly a year and about a week so I'de be disappointed to know the battery lasts this short. I remember being on another froyo ROM (with the battery tweak) using it more than I am now going to bed anywhere between 30 and 50% which is about where it's at at lunch time now! I can't believe that i'm actually ok with the performance of my hero, it's just the battery that's killing me now !
And I plan on staying away from the GB ROMS until they get the GPS issue resolved. Let's just say that I was in Colorado a couple of weeks ago and my phone failed when I need it to work.... flashed froyo almost immediately when I got back (that's another topic)
tannerw_2010 said:
And I plan on staying away from the GB ROMS until they get the GPS issue resolved. Let's just say that I was in Colorado a couple of weeks ago and my phone failed when I need it to work.... flashed froyo almost immediately when I got back (that's another topic)
Click to expand...
Click to collapse
What froyo Rom is your Rom of preference ?
Hungry Hero Eating Gingerbread Cookies
tannerw_2010 said:
I was thinking about starting a new thread about this, but you are explaining EXACTLY what I am going through. I wake up today (after leaving my phone charging at night) and turn on my phone, and first thing I see is an 80% battery (this is a normal occurance). After literally doing NOTHING on it all day (except for a 30 minute call) it turns off by itself at 20%.... after 8 hours. So while I got 2 hours better than you, keep in mind that I did virtually nothing. What is worse about it is i'm supposedly using the "best rom" for battery life (AOSP 2.2. + battery tweak).
I've wiped battery stats (after reading the correct way to do it) and checked the health of my batter (reads as "good") and i'm still clueless. I'm wondering if I should even waste my money on a battery and hope that's it? I've only had the phone exactly a year and about a week so I'de be disappointed to know the battery lasts this short. I remember being on another froyo ROM (with the battery tweak) using it more than I am now going to bed anywhere between 30 and 50% which is about where it's at at lunch time now! I can't believe that i'm actually ok with the performance of my hero, it's just the battery that's killing me now !
Click to expand...
Click to collapse
I really had my best battery life on CM 6.0.0 froyo rom, So im seeing a trend that froyo roms has the best battery life
Hungry Hero Eating Gingerbread Cookies
i believe you are correct, if you got it from the download section of rom manager, its the same one, ben using for a while now, no FCs no issues. smooth and pretty fast too

[Q] Cyanogenmod 7.1 Battery Life?

Hello all,
I have seen reports that because the source code for the captivate has not been fully released, some of the processes cannot be put to sleep when they are not being used, and therefore causes bad battery life. I am just about to flash CM 7.1 and am curious to know how the battery life is on the captivate.
All info is greatly appreciated!
LWt mw know what you find out! Just flashed it and my battery goes quicker than my bank account. Please let me know what I can do to help this I like the rom
Jaye
gtabowner said:
LWt mw know what you find out! Just flashed it and my battery goes quicker than my bank account. Please let me know what I can do to help this I like the rom
Jaye
Click to expand...
Click to collapse
Jaye,
This happens frequently when flashing a new ROM, you should try wiping the battery stats or giving the ROM a few days to calibrate with the battery.
Been a week for me and battery life is still horrible. I lose about 25% an hour
Sent from my SGH-I897 using XDA App
ConeyKiller said:
Been a week for me and battery life is still horrible. I lose about 25% an hour
Sent from my SGH-I897 using XDA App
Click to expand...
Click to collapse
You should try a custom kernel like glitch or Neo to see if that will help. I get awesome battery life in miui which is bases of cm7. I find that neo gives me the best battery life.
Sent from my SGH-I896 running MIUI.
Vaanhoot said:
You should try a custom kernel like glitch or Neo to see if that will help. I get awesome battery life in miui which is bases of cm7. I find that neo gives me the best battery life.
Sent from my SGH-I896 running MIUI.
Click to expand...
Click to collapse
What do you think about the Boog Kernel?
http://forum.xda-developers.com/showthread.php?t=1294849
Also, some people must be getting solid battery life, or CM7 wouldn't be as popular as it is. Or is this a known thing with CM7?
rcllcr said:
What do you think about the Boog Kernel?
http://forum.xda-developers.com/showthread.php?t=1294849
Also, some people must be getting solid battery life, or CM7 wouldn't be as popular as it is. Or is this a known thing with CM7?
Click to expand...
Click to collapse
I get better battery life on miui and neo kernel than any samsung rom I have tried. But each phone is different.
Sent from my SGH-I896 running MIUI.
ConeyKiller said:
Been a week for me and battery life is still horrible. I lose about 25% an hour
Sent from my SGH-I897 using XDA App
Click to expand...
Click to collapse
Yeah that's pretty awful. Try doing a battery calibration to see if that helps. It should never go that quick (unless you're playing some serious games). I've never really had great battery life with cm7/miui I've had the best battery life with all the recent samsung gingerbread leaks. I think those are better than cm7. But that's my opinion.
I am in CM7.1 since Sunday. I had very awful battery in start. So I did battery calibration, manually. So I got very decent battery on wifi. But at work I use att data so again my battery life was horrible. But I am seeing improvement since I am using this app called green power to manage my data. Try that.
sent from my cappy rocking gingerbread
viny2cool said:
I am in CM7.1 since Sunday. I had very awful battery in start. So I did battery calibration, manually. So I got very decent battery on wifi. But at work I use att data so again my battery life was horrible. But I am seeing improvement since I am using this app called green power to manage my data. Try that.
sent from my cappy rocking gingerbread
Click to expand...
Click to collapse
If you get good battery on WiFi but not with mobile data, try a different modem. Not only are some modems inherently better on battery, but if you find one that gives you a better signal you should see improvements in battery life as well.
Flashing the Glitch kernel seems to have improved my battery life.
Sent from my SGH-I897 using Tapatalk
Vaanhoot said:
You should try a custom kernel like glitch or Neo to see if that will help. I get awesome battery life in miui which is bases of cm7. I find that neo gives me the best battery life.
Sent from my SGH-I896 running MIUI.
Click to expand...
Click to collapse
Hi, Can you point me to a post that (a) has the Neo Kernel and (b) explains how to flash it on MIUI? I've had MIUI for a couple of months now and battery is to as good as expected. Would love to try to use another Kernel but I sincerely don't know how to do it.
Thanks in advance,
Mauricio
I just love MIUI, no battery problems for me. Gets me through 2 days of moderate usage so I'm a happy camper.
I just wish it had the Audience chip workingg...
MauricioJancic said:
Hi, Can you point me to a post that (a) has the Neo Kernel and (b) explains how to flash it on MIUI? I've had MIUI for a couple of months now and battery is to as good as expected. Would love to try to use another Kernel but I sincerely don't know how to do it.
Thanks in advance,
Mauricio
Click to expand...
Click to collapse
Yeah here is the link: http://forum.xda-developers.com/showthread.php?t=1247213. The download is half way down. Flash in recovery.
Sent from my SGH-I896 running MIUI.
Solid Battery Life w/ Stock Kernel
Hey Everyone,
Juts came to report that I have been getting great battery life using the stock kernel. I would say it is a little better than Serendipty VII Build 2 which I came from. Only issue, and this is something I know is inherently wrong with Cyanogenmod on the Captivate, when you fully charge the device, it only shows it is charged to 98%.
Other than that, all good!
rcllcr said:
Hey Everyone,
Juts came to report that I have been getting great battery life using the stock kernel. I would say it is a little better than Serendipty VII Build 2 which I came from. Only issue, and this is something I know is inherently wrong with Cyanogenmod on the Captivate, when you fully charge the device, it only shows it is charged to 98%.
Other than that, all good!
Click to expand...
Click to collapse
Not true, you need to calibrate your batter!!!!
I get awesome battery using wifi all day long, with auto brightness, music and videos often.
Sent from my SGH-I897 using xda premium
b-eock said:
Not true, you need to calibrate your batter!!!!
Click to expand...
Click to collapse
Oooohhhhh, sweet! I thought this was a common issue. I remember it was during the nightlies.
I am using the following application:
https://market.android.com/details?id=com.nema.batterycalibration&feature=search_result&rdid=com.nema.batterycalibration&rdot=1
I will report back!
viny2cool said:
I am in CM7.1 since Sunday. I had very awful battery in start. So I did battery calibration, manually. So I got very decent battery on wifi. But at work I use att data so again my battery life was horrible. But I am seeing improvement since I am using this app called green power to manage my data. Try that.
sent from my cappy rocking gingerbread
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Have you seen an improvement in this regards, I am having the same issues, the WiFi is draining my battery slower then my data is.
I have also done the battery calibration and it doesn't seem AS bad... still doesn't appear to be great though.
I am just coming back to this ROM after experiencing battery issues even though Glitch helped a little. I decided to try and tweak some more this go round.
I am experiencing much better results this time. Here are settings and other tweaks or modifications I have in place.
-sync is turned off
-using Launcher Pro with very few widgets (just 3GWatchdog and Power Control)
-auto brightness turn off manually adjust according to need
-gps, wifi, BT, and data turned off when not in use
-wifi notification and location detect off
-installed jk4 modem (may get better results with different modem depending on your area)
-installed Glitch v12 high leakage
-the biggest factor this time I think is UVing on the Freqs that are used while phone sleeps >>>>>100/200mhz (set for the lowest UV setting possible on these that do not result in a sleep death or reboot when phone is put to sleep)

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