Flashing decrease battery life? - AT&T Samsung Galaxy S II SGH-I777

I have been flashing back and forth ROM and Mods... I felt my battery getting worse compare to stock (stock Rom removed lot of ATT craps and other unused app).
Now doesn't what Rom i use: S8, Unname and CM7. My battery died at the end of the day which should last 1.5 days as my normal use.
Hmmm... well I jumped onto the ship already.
But I have to thanks for all developers that cook Rom. You guys are best.

Battery lifestyle will improve once you build up cache. Was battery life good when you first got your phone? Probably not. After awhile battery life gets a bit better.
Sent from a Galaxy far far away...

I noticed the same thing when I flashed from UnNamed to S8.
I followed some other users' suggestions and reflashed at 100% battery life, allowed the battery to discharge all the way until the phone died, then charged all the way to 100% again without taking it off the charger. I just got 25 hours with moderate usage and about 4 hours of screen-on time.

download the batteryCalibration app from the market, it requires root and makes you charge to 100% first. After that let it drain and it should do better after a couple cycles.

If you delete your battery stats in clockwork the phone relearns them and works better. But it will be ****ty for awhile
Sent from my SGH-I777 using XDA App

V3nomous said:
I noticed the same thing when I flashed from UnNamed to S8.
I followed some other users' suggestions and reflashed at 100% battery life, allowed the battery to discharge all the way until the phone died, then charged all the way to 100% again without taking it off the charger. I just got 25 hours with moderate usage and about 4 hours of screen-on time.
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nh5 said:
download the batteryCalibration app from the market, it requires root and makes you charge to 100% first. After that let it drain and it should do better after a couple cycles.
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Click to collapse
Rocky7032 said:
If you delete your battery stats in clockwork the phone relearns them and works better. But it will be ****ty for awhile
Sent from my SGH-I777 using XDA App
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None of these do jack on our phone. I've read the kernel source for our fuel gauge driver, clearly none of you haven't and are blindly applying HTCisms to a Samsung phone even though I've posted MANY times that diddling with batterystats does NOTHING WHATSOEVER on this phone.
If someone's experiencing bad battery life after flashing a new ROM, especially a debloated one like Unnamed or S8, they most likely installed a drainer app.
If you run Skype, nuke that crap from your phone ASAP. It's a known battery drainer, and it's particularly insidious because of how it drains the battery - the usage shows up as Android OS but it's Skype that is at fault.

Related

[Q] Average battery life on these developed roms?

I was just wondering on how long your battery life was, I guess when comparing to idle time. I ask because this was the main issue of mine as to why I havent flashed anything. When idle I was getting up to about 3 - 4 days of battery.
If battery life is important to you I would avoid all ROMs other than stock.
Flashing 3rd party ROMs is likely to damage you battery calibrator which causes you battery life to drain rapidly since calibration gets all screwed up.
Nobody knows specifically what is causing this serious issue but what we do know is that it happens when you flash a 3rd party ROM/Kernel.
ArtificialSweetener said:
If battery life is important to you I would avoid all ROMs other than stock.
Flashing 3rd party ROMs is likely to damage you battery calibrator which causes you battery life to drain rapidly since calibration gets all screwed up.
Nobody knows specifically what is causing this serious issue but what we do know is that it happens when you flash a 3rd party ROM/Kernel.
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Click to collapse
hey! can you please keep all your posts in one thread? it's getting hard for me to track your progress.
thx man.
jonnyg1097 said:
I was just wondering on how long your battery life was, I guess when comparing to idle time. I ask because this was the main issue of mine as to why I havent flashed anything. When idle I was getting up to about 3 - 4 days of battery.
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Click to collapse
custom roms usually use the stock kernel. what you get on your stock rom, you should get on a custom.
battery life is also subjective and variable, depending on your useage patterns, etc.
ArtificialSweetener said:
If battery life is important to you I would avoid all ROMs other than stock.
Flashing 3rd party ROMs is likely to damage you battery calibrator which causes you battery life to drain rapidly since calibration gets all screwed up.
Nobody knows specifically what is causing this serious issue but what we do know is that it happens when you flash a 3rd party ROM/Kernel.
Click to expand...
Click to collapse
Once again... lick my butthole 5thelement. Man you really bring out the class in me tonight bro.
I've been using task650s ROM with great battery life. I did have the battery drain issue which I don't think is really ROM related but once I went through the suggested calibration on this forum everything has been great. Think I've had my Tab on for 5-6 days with it at idle through the night and earlier parts of the day and using it for internet browsing and music around the house each evening. Turned it off last night with 30-40% battery left (just a guess).
ArtificialSweetener said:
If battery life is important to you I would avoid all ROMs other than stock.
Flashing 3rd party ROMs is likely to damage you battery calibrator which causes you battery life to drain rapidly since calibration gets all screwed up.
Nobody knows specifically what is causing this serious issue but what we do know is that it happens when you flash a 3rd party ROM/Kernel.
Click to expand...
Click to collapse
Yea I am familiar with screwed up battery life calibration on my Captivate. I was getting anywhere from 8 hours to a day and a half which was why I was asking.
sternweezy said:
I've been using task650s ROM with great battery life. I did have the battery drain issue which I don't think is really ROM related but once I went through the suggested calibration on this forum everything has been great. Think I've had my Tab on for 5-6 days with it at idle through the night and earlier parts of the day and using it for internet browsing and music around the house each evening. Turned it off last night with 30-40% battery left (just a guess).
Click to expand...
Click to collapse
Really? Hmm thats good to know, I will look into that one then if I consider flashing.
Heavy usage (a lot of browsing, notes, some games) nets me a little over a day. My usage can be heavy and nonstop.
My average is around 2 days before I have to charge. That's mostly moderate heavy. My usage is abnormal but I can say I'm happy with its battery life.
Using tasks rom and pershoots kernel.
My usage is heavy everyday so I get about 7 - 8 hours of screen time by the time I go to bed and usually I am around 30% - 35% left. I use it all day for when I am on the train or in class. Running Starburst KME at the moment but I got the same average battery life on all ROMs using stock kernel. Pershoots kernel is reliable and I could go an extra day if I wanted.
My galaxy tab got big problem on battery.Fully charged on 6am morning,airplane mode without any use,by 7pm night i left 50% battery.Baseband version P7500KWXG1 firmware upgrade from samsung kies.
yh9205 said:
My galaxy tab got big problem on battery.Fully charged on 6am morning,airplane mode without any use,by 7pm night i left 50% battery.Baseband version P7500KWXG1 firmware upgrade from samsung kies.
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yeah, battery life for the galaxy tabs seems to be pretty poor! i just can use my 10.1v (stock) for only about 3 or 4 days. just for a little bit of wifi surfing and ebook reading (wifi switches off during standby).
i really love my galaxy tab, and i hated my ipad, but regarding battery life i used to charge my ipad only once a month!!! really. and i used it exactly for the same things as my galaxy tab.
samsung promised it to have similar battery life as the ipad...one more lie from them...

ICS Passion v11 battery life is horrible for me

I was running bionix from before I decided to switch. I flashed back to stock via Odin and flashed to ICS Passion v11. It's an excellent ROM but my battery life is abysmal. Just texting for 5 mins drains it about 8%. I have to charge my phone 3x a day in order to keep it alive. Really like this rom so does anyone have suggestions on what to tweak or disable to fix this?
gravyong43 said:
I was running bionix from before I decided to switch. I flashed back to stock via Odin and flashed to ICS Passion v11. It's an excellent ROM but my battery life is abysmal. Just texting for 5 mins drains it about 8%. I have to charge my phone 3x a day in order to keep it alive. Really like this rom so does anyone have suggestions on what to tweak or disable to fix this?
Click to expand...
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Yeah same for me.. I had to buy the Samsung Galaxy Epic 4g 1800mAh battery.. It solved my problem. You can get one on amazon for like 20 bucks. It's totally worth it. For some reason the 1500mAh battery gets random drains on this ROM
It's not just this ROM. I have noticed it on all the ICS Roms. Some of the apps are not configured properly for ICS yet, thus the battery drain. When you re-install your apps using Titanium Backup try not restoring data.
Bump for possible solutions. The new battery is a good idea. I hear so many people claiming battery life is superb and mine is far from it. I never restored apps with titanium backup either. Everything was clean slate
When I was running ics, i had a few times where my phone would not deep sleep. I just reinstalled and it seemed to correct it.
Sent from my SGH-T959 using xda premium
When I first installed Passion V11 my first full charge only got me about 8 hours of use. I installed BetterbatteryStats and CPU Spy, and Battery Monitor Widget. I looked at the logs and saw that Beautiful Widgets was causing alarms and kernel wakelocks almost non-stop. After identifying the problem app and uninstalling it, my phone still has 70% battery with 24 hours of use.
You guys just need an 1800 mAH battery. The thing can last me a day and a half with no charge (assuming I put it in airplane mode at night). You can find it for $10-20 on Amazon or eBay.
To get best battery life all you need to do is "Charge Cycles"
For ICS Passion v8,
Charge Cycle means completely charging your phone too 100%, reboot and LET IT DRAIN UPTO 0%
Now charge it to 100% again without interuption and then reboot.
This is one/first charge cycle. Also get unused toggles off and remove unused widgets.
I would add that you need to go into Clockwork Mod manager by rebooting your phone, selecting advanced, wipe battery stats, repeat after drain to 0 and recharge to 100%
closedcircuit said:
I installed BetterbatteryStats and CPU Spy, and Battery Monitor Widget. I looked at the logs and saw that Beautiful Widgets was causing alarms and kernel wakelocks almost non-stop. After identifying the problem app and uninstalling it,
Click to expand...
Click to collapse
All this is in my guide stickied in the Q&A section.
jpatt said:
Charge Cycle means completely charging your phone too 100%, reboot and LET IT DRAIN UPTO 0%
Now charge it to 100% again without interuption and then reboot.
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Click to collapse
Best way to get the most out of your battery, hands down (although I never let it fully discharge. Got pegged once on another phone and it never held a charge again. My own superstitiion though b/c it was an entirely different manufacturer).
Also get unused toggles off and remove unused widgets.
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Click to collapse
Also in my guide
I would add that you need to go into Clockwork Mod manager by rebooting your phone, selecting advanced, wipe battery stats, repeat after drain to 0 and recharge to 100%
Click to expand...
Click to collapse
This has been debunked but I still believe in it and what I have seen from my own personal experience.

[Q] Do I need a new battery?

Hey guys,
I have been running unnamed rom lately, but on any other rom including stock. My battery lasts for like 8 hours with little use and 4 hours with moderate use. When I see what is draining my battery it looks normal as the display uses the most, but I only have it at 30% brightness most of the time I have insurance should I see if I can get a new battery? Or any other tips?
Can you post a pic of your battery usage?
Have you tried to calibrate the battery yet?
Sent from my SGH-I777 using XDA
kingsfan917 said:
Hey guys,
I have been running unnamed rom lately, but on any other rom including stock. My battery lasts for like 8 hours with little use and 4 hours with moderate use. When I see what is draining my battery it looks normal as the display uses the most, but I only have it at 30% brightness most of the time I have insurance should I see if I can get a new battery? Or any other tips?
Click to expand...
Click to collapse
Many things could cause battery drainage, such as oc-ing. You could find the original Samsung battery on eBay for a cheap price. Before buying one, try doing the following:
Clear OC/UV settings (i.e. put to defaults)
Download Battery Calibration by NeMa (on the Play Market)
Charge your phone and wait until it reaches 100%*
Tap on "Battery Calibration" and done
Once calibrated, use your phone as you normally would until the battery dies. Only when it dies you can charge it. You can charge as you please from then on.
Note: If it does not reach up to 100%, go to CWM and clear battery stats.
kingsfan917 said:
Hey guys,
I have been running unnamed rom lately, but on any other rom including stock. My battery lasts for like 8 hours with little use and 4 hours with moderate use. When I see what is draining my battery it looks normal as the display uses the most, but I only have it at 30% brightness most of the time I have insurance should I see if I can get a new battery? Or any other tips?
Click to expand...
Click to collapse
Which other firmwares? Anything UCKK6-based has known documented wifi drain issues.
The usual applies - look in battery statistics, use BetterBatteryStats to hunt wakelocks.
sykoj82 said:
Have you tried to calibrate the battery yet?
Sent from my SGH-I777 using XDA
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THIS DOES NOTHING ON ANY SAMSUNG GALAXY S DEVICE!
never tried the battery calibration?... does it actually work or no?
have you installed any new apps recently? those apps that use a lot of apps in the background are a pest to your battery life as they usually won't show up in the battery monitor. try disabling your data when not in use and see if that helps. if the current rom you are on does not have a toggle bar with data use the "data enabler widget" by Farproc.

[Q] Batery calibration issues.

I've been using my s3 for the past one week and my device shows 99% assoon as i remove my charger! i've tried changing the rom, erased my Battery stats, recalibated my battery using playstore apps. even though it shows 99%. please help! by battery life is worst!
All GS3's are like this only. The battery actually never charges to 100. Its purely cosmetic.
Please tell me you've actually tried searching for this before posting since there are literally dozens of threads and discussions revolving around it.
Physically it's very simple. If a battery is 100% full, it's as full as it can get. This is not true for everything but for most consumer-related stuff. (Airplane turbines, reactors and other industry-machines see it as a maximum value for long-time usage but can go quite a bit above)
If you unplug it, your phone starts draining battery since -surprise,surprise- it needs power. So the battery cannot stay at 100% if a (however tiny) part has been removed.
Phones that remain at 100% after unplugging for some time are lying to you to make them look better. And you don't want a manufacturer lying to you, do you?
rooneyvignesh said:
I've been using my s3 for the past one week and my device shows 99% assoon as i remove my charger! i've tried changing the rom, erased my Battery stats, recalibated my battery using playstore apps. even though it shows 99%. please help! by battery life is worst!
Click to expand...
Click to collapse
Better check of you have rogue apps in the background or your screen brightness, my batterylife is quite good (about 2 days with medium/heavy) use. Running stock firmware.
rooneyvignesh said:
I've been using my s3 for the past one week and my device shows 99% assoon as i remove my charger! i've tried changing the rom, erased my Battery stats, recalibated my battery using playstore apps. even though it shows 99%. please help! by battery life is worst!
Click to expand...
Click to collapse
That's perfectly ok. Relax Been discussed here already...
PS absolutely no need to calibrate the battery
This happens to me as well but don't fret over it.... Calibrations should be done regularly but not overly or it'll stress your battery more than necessary.
You do not calibrate your battery regular the year is 2012 not 1995 .
Battery auto calibrates itself use it ignore it .
jje
gee2012 said:
Better check of you have rogue apps in the background or your screen brightness, my batterylife is quite good (about 2 days with medium/heavy) use. Running stock firmware.
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Click to collapse
I'm amazed how people can get nearly 2 days with medium usage. Do you have any apps installed? How many hours screen do you get?
It seems it's pot luck with battery life..

[Q] Funky Battery

I'm having an issue with my battery. I am running the latest build of ViperInc on it and the battery life is great. But something weird happens when the battery gets low. from 20-12% battery left it runs fine. But once it hits 12% or even 11% it jumps down straight down to 6% and then powers down. I've tried cycling it a few times.
I think it actually needs a calibration. I know I used to have some option in CWM recovery that would reset battery stats but not i use TWRP.
Any suggestions?
That has been proven to not really be affective. Do you run any kind of battery saving apps.
Sent from my Fireball on TACHYON using XDA Premium 4 mobile app
SnoStorm said:
I'm having an issue with my battery. I am running the latest build of ViperInc on it and the battery life is great. But something weird happens when the battery gets low. from 20-12% battery left it runs fine. But once it hits 12% or even 11% it jumps down straight down to 6% and then powers down. I've tried cycling it a few times.
I think it actually needs a calibration. I know I used to have some option in CWM recovery that would reset battery stats but not i use TWRP.
Any suggestions?
Click to expand...
Click to collapse
You're working off a lot of outdated information. We don't use Ni-Cad batteries in our phones, fully discharging Li-Ion causes more harm than good. The wipe battery stats feature in recovery was removed about a year ago because it gave false impressions about "calibrating" your battery. In actually, it only wiped the statistics... strange right? A new battery costs around $7 on Amazon or eBay, have you considered that?
mdmower said:
You're working off a lot of outdated information. We don't use Ni-Cad batteries in our phones, fully discharging Li-Ion causes more harm than good. The wipe battery stats feature in recovery was removed about a year ago because it gave false impressions about "calibrating" your battery. In actually, it only wiped the statistics... strange right? A new battery costs around $7 on Amazon or eBay, have you considered that?
Click to expand...
Click to collapse
Gotcha. I always read conflicting stuff about it whether cycling works or not.
I know batteries are only 7 bucks but I don't have any issues with it and it rarely gets down that low unless i forget my charger after a day of classes and work. Was just hoping there was some way to even have a makeshift fix.
I appreciate your help

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