Battery kinda sucks!! - Samsung Galaxy S (4G Model)

Hey guys a couple a days ago i flash to my phone the stock 2.3.6 the kj1 kernel and the adrenaline shot v2. My phone works great but my battery its horrible. Is this because of the adrenaline thing??
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Calibrate your battery then give it a few days...
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Also... flash kj6.... you are behind the times. Kj6 mostly has wifi fixed.
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Exactly what Calamus said. I'm running KJ6, drhonk's KJ1 kernel, and Adrenaline Shot v12. I calibrated my battery (there are apps for that in the market), and my battery life is pretty good.
If I'm heavily using my phone I get a bit over half a day of battery life. That's with really heavy use (wifi calls, texting, XDA app, and other apps being used). With normal use it'll last me a day.

Im in the kj6 stock the kj1 is the kernel. Im going to look the calibrate app to see if my battery last longer. But for example sometimes i have to chrage my phone twice a day. I never let the battery drain completly if i know the battery is in 20% i charge the phone. This can happend to me twice a day. I dont talk so much i do txt a lot and use in a normal way some apps, games and wifi.
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daworship said:
Im in the kj6 stock the kj1 is the kernel. Im going to look the calibrate app to see if my battery last longer. But for example sometimes i have to chrage my phone twice a day. I never let the battery drain completly if i know the battery is in 20% i charge the phone. This can happend to me twice a day. I dont talk so much i do txt a lot and use in a normal way some apps, games and wifi.
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I've noticed wifi eats the battery quite a bit. I'd suggest turning it and other features off if you're not using them. I keep bluetooth & GPS off all of the time. I have wifi on when I'm at home as I get better coverage than on the carrier network.
Give it a few days after you calibrate it as it takes a little time for it to level out.

"Juice defender" in the market. Free version works well. paid gives a few more features. I would re calibrate after install. I have no problems getting a full day with moderate to heavy use.
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I agree....my battery life is horrible!! I should have just bought another phone!
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jager555 said:
I agree....my battery life is horrible!! I should have just bought another phone!
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Lol and I'm still on froyo
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I have been messing with juice defender and im running alot better i calibrated battery then i set up app i has lots of options like shut down at night or kill connectivity when off. If not try octane rom that gave me great batt i would run 4 hrs of sat radio and still have 40% battery after
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Did the calibrate battery app and manage to turn off some things in my phone and i do see some good changes in my battery life overall, this is an ok device Tmobile has launch or is soon to , some really good phones but right now the only choice that i could think of is the galaxy s II i saw a video of a phone fight between the galaxy s II and the iphone 4s and the iphone won in so many ways, but till this day and looking forward to android 4.0 im a Android fanatic 100%

An architect buddy of mine who is a big iPhone guy ( iPhone 1 to new iPhone 4s recently) was playing around with my sgs4g a week or so ago, it was the first Android phone he had ever messed with. He was taking about how great his iPhone battery life was (true) when i got a facebook notification come through, followed by a twitter notification, while he was using the imdb app. "Your phone can do more than one thing at a time?" He asked....
"Sure, yours can't?" i asked in return.
"No, i gotta physically open Facebook to check messages, then close it afterwards." He said.
"Wow that really sucks, i see why your battery life is so great though." I commented.
.....silence...."F this I'm buying an Android" he said, and he did....a galaxy s2 and he said it pwns the iPhone 4s he just bought and traded. True story.
I guess its a tradeoff, great battery life or ultra versatile multi tasking usability. I understand that some people do prefer the iPhone, and they are great...if that's what you want....but for a review to state an iPhone 4s beats a galaxy s2 in almost every test is laughable and i would have to question the reviewers reliability and validity.
Once you get the phone set up right, undervolted etc the battery life is quite acceptable considering its performance. I have got almost 2 days with light use, and can comfortably get 8 to 9 hours with heavy use.
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The tips that I picked up on is:
Disable any OC and/or non-standard governor, don't run too many apps while charging.
Charge the phone up completely
After it is charged completely, your calibration app should show you the mVh, unplug the power wait a second and plug it back in. Mine usually gets to 4203 (or something like that. I don't have my phone back yet.). If you don't use a calibration app, spareparts should show you mVh level.
Then delete the baterystats.bin. Disconnect charger, and let the phone drain until it dies.
When it is dead. Plug it into the charger and don't touch the phone until it is fully charged. OC and non-standard governors should still be disabled or at their defaults.
After it is fully charged, use your phone like normal (again, no OC etc...), let the phone die all the way again.
Charge the phone up all the way again.
re-enable OC and/or governors.
baterystats.bin is a log of the phone's battery usage and capacity. I've also been told to do steps 6-7 over and over to get more log information into baterystats.bin to get a more reliable battery charge.
Hope this helps.

htaak said:
He was taking about how great his iPhone battery life was (true)
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I thought the iPhone 4S has **** battery life. That's why everyone was complaining about it, right?

bhundven said:
The tips that I picked up on is:
Disable any OC and/or non-standard governor, don't run too many apps while charging.
Charge the phone up completely
After it is charged completely, your calibration app should show you the mVh, unplug the power wait a second and plug it back in. Mine usually gets to 4203 (or something like that. I don't have my phone back yet.). If you don't use a calibration app, spareparts should show you mVh level.
Then delete the baterystats.bin. Disconnect charger, and let the phone drain until it dies.
When it is dead. Plug it into the charger and don't touch the phone until it is fully charged. OC and non-standard governors should still be disabled or at their defaults.
After it is fully charged, use your phone like normal (again, no OC etc...), let the phone die all the way again.
Charge the phone up all the way again.
re-enable OC and/or governors.
baterystats.bin is a log of the phone's battery usage and capacity. I've also been told to do steps 6-7 over and over to get more log information into baterystats.bin to get a more reliable battery charge.
Hope this helps.
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Click to collapse
batterystats.bin is a log file - true... deletion of that file has nothing to do with calibration - it's a myth.
Android is reading SOC (state of charge) battery from fuel gauge chip. It happens this chip calculates remaining capacity wrong - so it needs to be calibrated.
Proper method depends on type of that chip. With old, colomb type of fg, you would indeed required to make a full discharge followed by full charge in order to let the chip now of how many mAh battery can get in.
Modern fg is using math model which can predict / calculate capacity based on open-circuit voltage measurements. So you don't need to stress your battery with full charge/discharge cycle.
Again, 'calibration apps' do nothing more but delete that log file - this is not how fg chip got it's calibration.
It's interesting topic - battery, current consumption, calibration. It's surrounded with that myth about batterystats.bin and various 'calibrator apps' built on top of it.
I just cannot resist this time from commenting this "facts".
---------- Post added at 11:49 PM ---------- Previous post was at 11:38 PM ----------
On topic - my sgs4g with KD1 rom, rooted, debloated standby time with wifi, 4g off, only GSM voice and SMS can lasts 5-7 days.
Some normal use - 2 days,
Reading ebook non-stop - 8 hours,
music or audio-books - 15-20 hours.
Netflix, internet on wifi non-stop - 5 hours.

bkoon1218 said:
I thought the iPhone 4S has **** battery life. That's why everyone was complaining about it, right?
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Click to collapse
I'm honestly not sure man. He only had it for a few days, and I don't really follow Apple. Sounds right though, if Apple gave it more "umph" you would expect the battery life to suffer.

some people were reporting issues with battery drain on the 4S, but a lot depends on how you have notifications/sync setup, and I believe apple is working on a patch.
Same thing goes with the SGS4G. First thing you want to do is check your accounts and sync. I leave Facebook turned off. It only syncs if I actually open it and log in. I only have my gmail account syncing, and it's set to sync only once an hour (using juice defender to do this).
Otherwise, wifi, BT, and GPS are off unless I am using them. I regularly get between 3 and 4 days out of a charge with light use.
Also, I've never calibrated my battery.

Vlad_z said:
batterystats.bin is a log file - true... deletion of that file has nothing to do with calibration - it's a myth.
Android is reading SOC (state of charge) battery from fuel gauge chip. It happens this chip calculates remaining capacity wrong - so it needs to be calibrated.
Proper method depends on type of that chip. With old, colomb type of fg, you would indeed required to make a full discharge followed by full charge in order to let the chip now of how many mAh battery can get in.
Modern fg is using math model which can predict / calculate capacity based on open-circuit voltage measurements. So you don't need to stress your battery with full charge/discharge cycle.
Again, 'calibration apps' do nothing more but delete that log file - this is not how fg chip got it's calibration.
It's interesting topic - battery, current consumption, calibration. It's surrounded with that myth about batterystats.bin and various 'calibrator apps' built on top of it.
I just cannot resist this time from commenting this "facts".
---------- Post added at 11:49 PM ---------- Previous post was at 11:38 PM ----------
On topic - my sgs4g with KD1 rom, rooted, debloated standby time with wifi, 4g off, only GSM voice and SMS can lasts 5-7 days.
Some normal use - 2 days,
Reading ebook non-stop - 8 hours,
music or audio-books - 15-20 hours.
Netflix, internet on wifi non-stop - 5 hours.
Click to expand...
Click to collapse
Based on this post, how do you verify that your SGS4G is actually measuring open-circuit voltage accurately and how would you make appropriate adjustments?.... assuming that the hardware is tweakable. Is there some kind of software / linux / adb command available?

htaak said:
Based on this post, how do you verify that your SGS4G is actually measuring open-circuit voltage accurately and how would you make appropriate adjustments?.... assuming that the hardware is tweakable. Is there some kind of software / linux / adb command available?
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Click to collapse
Regarding calibration I have some research done here
http://forum.xda-developers.com/showthread.php?t=1215182
It's possible to initiate / write down to the fg chip but for it some kind of jig cable needed or modified kernel. But fg chip designed that way it can do recalibration on its own with some time and normal usage pattern.
Open-circuit voltage chip would consider when battery is at rest and voltage change less then some mV per hour. When device is in deep sleep - conditions might be right (if there is no background activity) . To make sure - just shutdown device for couple hours. Chip is connected to the battery regardless.

Vlad_z said:
Regarding calibration I have some research done here
http://forum.xda-developers.com/showthread.php?t=1215182
It's possible to initiate / write down to the fg chip but for it some kind of jig cable needed or modified kernel. But fg chip designed that way it can do recalibration on its own with some time and normal usage pattern.
Open-circuit voltage chip would consider when battery is at rest and voltage change less then some mV per hour. When device is in deep sleep - conditions might be right (if there is no background activity) . To make sure - just shutdown device for couple hours. Chip is connected to the battery regardless.
Click to expand...
Click to collapse
I read the link you posted and will give it a whirl, thanks for the info man.
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Related

Terrible battery life, please help!

Hello I am new to this forum, I just got the Samsung galaxy s 4g this Wednesday and I was wondering if anyone else was having battery issues. Right now I have my phone set to minimum brightness, auto sync off, black bckground and juice defender on. So I don't understand why am I getting only about 3 hours of battery life when all I'm doing most of the time is surfing the web(this forum) and facebook. I even get better battery life from my dads vibrant which is completely stock, has auto sync on, no juice defender, and screen brightness set to 50%. From reading the stats of both phones, the vibrant 4g is supposed to have a slightly better battery. I also don't understand why if the screen is at the minimum it still takes up 94% of the battery whereas on my dads vibrant 50% screen brightness takes up 30%. Is there anything I can do? Will wiping the battery stats help? If so how do I do that from a stock unrooted vibrant?
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Check your notifications settings. I know that Samsung's contacts integration with social networks takes a big toll on the battery, hence why I've disabled it. Also, disable T-Mobile's Contact Backup Sync, just use Google's contacts integration.
Thanks for helping, but yeah I have those disabled already.
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icy56 said:
Thanks for helping, but yeah I have those disabled already.
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No, I charged mine this morning at 630AM, and I have been playing with it all day. It is currently 610PM, and I am at 60% still. Seems pretty good to me.
troby1986 said:
No, I charged mine this morning at 630AM, and I have been playing with it all day. It is currently 610PM, and I am at 60% still. Seems pretty good to me.
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Click to collapse
Wow thats much better than what I have been getting, have you changed any settings that might have increased the battery life for your phone?
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Does the trick to fully discharge and recharge 3 times work with these batteries? According the the Li-on technology this is not supposed to be necessary but I've heard stories in the forums of folks getting great battery life on other phones after doing this. Many people also say their batteries work a lot better after a week of use (supposedly after "training" them as well.)
I believe the G2 is clocked down for this reason. You could try CPU-set app, clocking down to 500-800mhz when not gaming.
Anyone tried these tricks?
gggirlgeek said:
Does the trick to fully discharge and recharge 3 times work with these batteries? According the the Li-on technology this is not supposed to be necessary but I've heard stories in the forums of folks getting great battery life on other phones after doing this. Many people also say their batteries work a lot better after a week of use (supposedly after "training" them as well.)
I believe the G2 is clocked down for this reason. You could try CPU-set app, clocking down to 500-800mhz when not gaming.
Anyone tried these tricks?
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Click to collapse
Will ill try to cycle charge the vibrant and use it for a week, and ill try out cpu set. if this doesn't improve I'm definitely returning this phone. I had soo much expectation for this because I have seen people getting up to 24 hours. I can't even get halfway through the day barely using the phone.
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Thats weird... I unplugged at 9:30 used it moderately untill 12:30 at which time i turned brightness to max and watched the intire incpetion movie and watched an episode of kitchen nightmares and ended up at 56%.
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mavictb said:
Thats weird... I unplugged at 9:30 used it moderately untill 12:30 at which time i turned brightness to max and watched the intire incpetion movie and watched an episode of kitchen nightmares and ended up at 56%.
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Yeah there's gotta be something wrong with my phone, after watching halfway through inception from a full charge and at 0% brightness I had 30% battery left.
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I'm also struggling to make it through the day. I check Facebook / xda on occasion and text moderately, Gps off, notifications and auto sync off, display set to 0% with an all black background, even 3g off in areas where its spotty... I don't remember the vibrant being this bad...
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did you guys do a full battery break in? I charged my phone to 100% drained it till it died charged it to 100% again with the power off then drained till it died again... I have great battery life.
What is your usage like? Im breaking in my battery again today.
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rando191 said:
What is your usage like? Im breaking in my battery again today.
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Auto brightness on GPS on sync on 20 texts 30 min playing games 20 min on Facebook now on xda app for 15 min. And standby for 3 hours... currently at 80%. Also have hepatic feedback on the Mtm gingergread keyboard. If that matters.
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I got my replacement 4g today. Hopefully ill have better results. I have a question for those of you that are getting really good battery life, are you running juice defender or something similar in the background? Maybe that's a factor in why I've been getting terrible battery.
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Im having the same issue with battery life.. for me its a deal breaker.. I use my phone pretty heavily for keeping up with email and a little web browsing as well as talking quite a bit.. My iPhone 3Gs lasted me all day of heavy use and with the SGS4G I have to charge the damn thing at least once a day with light usage and if I have to be on the phone a lot then its twice a day.. Not acceptable at all...
Thats with wifi and gps disabled..
On the 3Gs I had wifi, bluetooth and the gps running all the damn time...
Took my phone off charge at 6:30 this morning haven't put it on charge yet at 88% never had this much juice with the nexus one.
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I'm not having any issues with battery life or heating. I use wifi teather most of the day and I'm getting to use it all day without issue. I did cycle my battery 4 times already just in case it matters. FYI
The batteries that our phone uses DOES NOT require u to cycle the battery. In fact, doing so will harm your battery. To avoid damage to your battery always charge ur phone when u r at <15% battery level. Trust me I thought the same until I did the research. I will post more info when I get on my PC later.
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**EDIT**
More information:
http://www.goodandevo.net/2010/06/does-the-htc-evo-4g-battery-need-to-be-primedconditioned.html
http://batteryuniversity.com/parttwo-36.htm
I just bought a Galaxy S 4G on wednesday. First android device coming from iphone 3G. I'm still trying to figure out the best way to preserve the battery life.
I took it off the charger at 6:30am and the battery was at about 2% at 8:30pm.
I haven't rooted the phone yet to remove some of the bloatware that comes pre-installed.
I've got email accounts synching, brightness set at about 10% w/ a static wallpaper. Played about an hour of angrybirds throughout the day and didn't really do any web browsing with a few phones calls. I mean 14 hours is decent but from what I've read there are plenty of people getting a full day of use and still have 50% battery left.
I guess once the battery fully charges I'll put inception on, turn off syncing and try a few other things.
So I guess I said all that to say this, my battery life isn't great but it's not downright horrible either. Any suggestions would be much appreciated.
And yes I'll continue browsing all the forums to see what else I can find.
Edit:
Played through half of Inception in airplane mode, brightness at minimum. I dropped from 93% to 80% in an hour and a half. Not too shabby.
Also created a shortcut to toggle between 4G modes and Edge. I know 4G is going to be a pretty big drain so I'll see how much that helps.
I'll keep tweaking it.
this is completely true and if you read the manual on page 13- h t t p:// downloadcenter . samsung . com/content/UM/201102/20110224044646930/T959_Galaxy_S_4G_English_User_Manual.pdf it says that
"• Do not wait until your battery is completely depleted before charging
your device. Repeating this process of a complete discharge and
recharge can over time reduce the storage capacity of any battery."
right now my phone is at 23% battery level with up time of 46:46:40 hrs/mins/secs. with skype calling (around 10 minutes), text messaging, browsing the net (for around 5 minutes about 6 times a day), and talking on the phone (around 15 minutes)
the settings i did:
1. took a picture with my finger blocking the camera to get pitch black picture and set that as my background and deleted all the shortcut icons (i short, i only have a blank screen with the only 4 icons down below)
2. changed the brightness settings to 2 clicks to the right from 0% brightness (or you can lower your brightness all the way down during the night, and 2 clicks away during the day, this will save you more)
3. disabled haptic feedbacks and audible touchtones, selections, and screen lock sounds
4. disabled animations
5. disabled background data and syncing when not in use
6. disabled packet data (3g), wifi, and gps when not in use
the last two are the biggest settings that made my battery last longer.
7. i only charge my phone when it gets to 20% and the manual recommends not to use the phone while charging
i hope this helps.
and yes it is recommended to charge your battery to 100% before you turn on your phone for the first time and this is also stated on the manual.
one more thing, don't forget to set your browser's brightness setting as well
Toshinobu said:
The batteries that our phone uses DOES NOT require u to cycle the battery. In fact, doing so will harm your battery. To avoid damage to your battery always charge ur phone when u r at <15% battery level. Trust me I thought the same until I did the research. I will post more info when I get on my PC later.
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**EDIT**
More information:
http://www.goodandevo.net/2010/06/does-the-htc-evo-4g-battery-need-to-be-primedconditioned.html
http://batteryuniversity.com/parttwo-36.htm
Click to expand...
Click to collapse

Are all Android phones this bad with battery life? *Update*

So here's a screen grab of my phone's battery. I work 9-5. Started the day with fully charged battery, and end of work day it's almost dead. Honestly, I never thought it would be this bad. I don't play games or watch endless videos on youtube. I've sent about 15 texts messages max, used the phone to make about 4 calls for a max talk time of 6min. And browsed the net for no longer than 5min. I have wifi always off, GPS off, my screen is always set right down to absolute minimum all the time. I have never used live wallpaper, and have a black wallpaper. All I've done to this phone is root it and remove a lot of bloatware. Nothing else. I've read through the forum and came upon this thread:
http://forum.xda-developers.com/showthread.php?t=1092249
So without running the Bali kernel or running any specific rom, Is this the expected battery life for the average person who just leaves the phone completely stock.
*UPDATE*
JuiceDefender works!!! Battery now last much longer. Thanks goes to jager555 for the great suggestion.
Most high end ones are. because android runs things in the background and allows you to customize many settings, Battery life usually looks like that when you first get your phone. That said once you get familiar with your phone you will start to recognize things that run in the background that serve you no purpose and you can stop them or get rid of that app. You can also get custom roms that have great modifications to enhance your battery's life. It takes some experimentation but gone are the days of getting 4 days out of you Razr. Try searching "battery saver" in the market, too.
It could look like this...
Well I have to say that's quite shocking. The average person just has no clue on how to flash roms or anything like it. They just charge their phone and go. It really makes me wonder why Google or the phone manufacturers wouldn't think battery life to be a priority. The battery life isn't just bad, its unacceptably bad.
Thanks for the input though.
Yeah no thats not normal. When i first got this phone i could go up to twelve hours non stop with regular use text here and make some phone calls, watch one or two videos... And i still had battery left probably like 40% maybe less. Well at least for me i dont know if i was a special case or not.
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if you are on stock and do not use the bali kernel, get Juice Defender from the market. try it out for 2 days and get back to me on how it works. if you want the best battery life, especially since you take off gps and wifi, set it to aggressive. that should make the battery last MUCH longer with your type of usage. but once again, use it for 2-3 days for it to settle in properly
jager555 said:
if you are on stock and do not use the bali kernel, get Juice Defender from the market. try it out for 2 days and get back to me on how it works. if you want the best battery life, especially since you take off gps and wifi, set it to aggressive. that should make the battery last MUCH longer with your type of usage. but once again, use it for 2-3 days for it to settle in properly
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Click to collapse
Will do. You got my hopes up.
its usually the screens, emails, and txts that kill my battery lol
Tempott said:
Will do. You got my hopes up.
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Click to collapse
yea, my dad is on stock with this phone and it wouldnt last from 7am to 2pm. now it lasts from 7am to at least 8pm with the same type of usage. its a neat program. i hope it works well for you.
I'll second juice defender. Even the free beta version has helped my phone last a long time. but if you aren't using your phone much, you should really get a lot better battery life than that. if it's brand new, it can take the battery a couple of charges from a full drain to get up to snuff.
With light use, I can get well over 2 days, and have even gotten over 3. Here's a screenshot I took a couple of weeks ago.
mike-y was the one who introduced me to juice defender, btw. great find, man
Wow, Tempott, that's very short battery life. I actually had pretty decent battery life on stock. I lasted about 12 hours on moderate use. Then again, it's funny that I last 18 hours on very heavy use now with ICBINB with 4G on, first level brightness, and sync always on (no JuiceDefender, etc.).
i am using Audiophile ROM. i get 10-15h of battery life.
Im using black ice with bali 3.1uv dsexton's build.prop and im getting round 12-15 with heavy use(mobile AP, pandora, calls)
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Did you try juice defender? if so, what were the results?
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jager555 said:
Did you try juice defender? if so, what were the results?
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Sorry for the late reply, but I just wanted to give the app a thorough usage. I'm happy to say it really makes a difference. I was so disappointed with the battery life that I had a serious bout of buyer's remorse. This App made a world of difference. Thanks for the suggestion! Glad to have this phone now. Check out the screen shot!
Nice!! that's great. I liked the beta app so much I went ahead and paid for the "plus" version. "Plus" gives JD control over wifi, and lets you set a "night mode" that turns off data/wifi/gps/bluetooth during the night when you sleep. There is also app control, which I played with, but ended up just disabling it (makes things a lot simpler).
Honestly, if the beta is working for you, there isn't much need for the paid versions. especially if you put your phone in airplane mode when you got to sleep (or just turn it off).
btw, current uptime = 40 hours, 45 mins, and I still have 70% battery left.
It seems to me Battery Calibration doesn't work...however, this phone lasts longer than the Sensation, which personally sucks.
battery calibration works fine. make sure your phone is charged to 100%. check spare parts amd make sure it is at 4200mV. sometimes, if it is not calibrated properly, it will show 100% and not 4200. unplug the phone and immediately plug it back in and you will notice a fluctuation in the numbers. usually, it is a big fluctuation. once you are as close to 4200 as you think you are going to get while the phone is plugged in, open the battery calibration app and click calibrate. then immediately unplug the phone. use it until it is completely dead (i do it until i shuts down). once this is done, charge the phone until it is 100%. do no unplug the phone until it is at 100%. then drain it again. and charge it to 100% again. after that, use it normally for 2 to 3 days and you will notice the difference in efficiency.
jager555 said:
battery calibration works fine. make sure your phone is charged to 100%. check spare parts amd make sure it is at 4200mV. sometimes, if it is not calibrated properly, it will show 100% and not 4200. unplug the phone and immediately plug it back in and you will notice a fluctuation in the numbers. usually, it is a big fluctuation. once you are as close to 4200 as you think you are going to get while the phone is plugged in, open the battery calibration app and click calibrate. then immediately unplug the phone. use it until it is completely dead (i do it until i shuts down). once this is done, charge the phone until it is 100%. do no unplug the phone until it is at 100%. then drain it again. and charge it to 100% again. after that, use it normally for 2 to 3 days and you will notice the difference in efficiency.
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Click to collapse
I would like to add that the first charge drains amazingly fast. You can be idling your phone the whole day, and it'll still be gone.
After you go through a few charges, it'll be omgwtfbbqhax battery life.
Btw, I'm betting Bali 3.3UV + JD is pretty beast battery life compared to Bali 3.3 + JD, right?
Juice defender works great for me as well! Very noticeable difference

Maximizing Battery Life

What do you guys do to maximize your battery life? I just can't seem to get decent life. Average is probably 5 hours with heavy usage.
Any recommendations?
Sorry if there is already a thread, I don't have a computer right now and I don't think I can search on tapatalk.
Thanks in advance.
Sent from my Nexus S 4G
The usual - brightness as low as you can stand, radios not in use turned off, screen timeout 15 seconds, 200-1400 conservative governor in SetCPU.
Search AutoKiller in the market -- choose "optimal" profile, so far has given me an extra two hours today over what I got yesterday.
5h of heavy use is good already.
You can tweak your idle batt life, 2g-only, undervolted kernel, avoiding power hungry rom.
Idle battery life is just amazing with stock... just test it over night, 6hrs get 2/3% for me.
I can get 30hrs with 4hrs with screen on, the screen is the key here, i can get 5hrs with 4hrs with screen on too. ;o)
Sent from my Nexus S using XDA App
thiagodark said:
Idle battery life is just amazing with stock... just test it over night, 6hrs get 2/3% for me.
I can get 30hrs with 4hrs with screen on, the screen is the key here, i can get 5hrs with 4hrs with screen on too. ;o)
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
Try a kernel that is made to optimise batt life with display active, like the XTEUV92 Trinity kernel.
rentaric said:
Try a kernel that is made to optimise batt life with display active, like the XTEUV92 Trinity kernel.
Click to expand...
Click to collapse
I tried almost every single combination of rom + kernel. And for me, pure stock has the best battery life, by far.
But i'm getting bored and should flash something... )
Ps: afaik trinity doesnt work with stock. Did it change?
Sent from my Nexus S using XDA App
thiagodark said:
I tried almost every single combination of rom + kernel. And for me, pure stock has the best battery life, by far.
But i'm getting bored and should flash something... )
Ps: afaik trinity doesnt work with stock. Did it change?
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
See my signature, stock (rooted and removed soom Google apps) with Trinity, works together just fine
How would you define "heavy" usage?
Also, what does your "battery use" stats say? (Settings - About Phone - Battery Use)
5 hours of truly heavy usage (online gaming, for instance) is actually to be expected.
rentaric said:
See my signature, stock (rooted and removed soom Google apps) with Trinity, works together just fine
Click to expand...
Click to collapse
i'm using the same stock 2.3.4 as your signature and tried the morfic kernel from yours, but got no lock at all, freezes and reboots...
that's a little strange for me, first time i see it in my device... =o\\
johnbibbs said:
What do you guys do to maximize your battery life? I just can't seem to get decent life. Average is probably 5 hours with heavy usage.
Any recommendations?
Sorry if there is already a thread, I don't have a computer right now and I don't think I can search on tapatalk.
Thanks in advance.
Sent from my Nexus S 4G
Click to expand...
Click to collapse
You can create a custom prl setting. Turn wifi to never sleep when you're at home... Have the prl to auto *CDMA or GSM* Which ever your network is on. (This goes to all Nexus S. users). So you have wifi on with a signal and 3g off. The phone stays in 2g for calls and uses wifi for data. Turn off google location services while your at home, turn off roaming, turn all of that off. I get about 13 hours of battery life with heavy usage. People think wifi drains your battery but it doesn't if you have mobile data turned off. When you have 3g turned on it's constantly searching for a better connection. If you have wifi on and a strong connection it isn't constantly polling.
are there any charging habits that would help prolong battery life? I usually just charge my phone every night cause, if I remember correctly, these batteries don't have a memory or anything. anyone know if that is the smartest thing to do?
hoponpop said:
are there any charging habits that would help prolong battery life? I usually just charge my phone every night cause, if I remember correctly, these batteries don't have a memory or anything. anyone know if that is the smartest thing to do?
Click to expand...
Click to collapse
I hope you don't mean overnight. I don't know if phones have auto-cutoff feature (a la laptops), but it's safer just not to charge overnight.
I personally use an extension that has a timer built-in. Nifty. Set the timer, plug the phone in, it will automatically start and stop the charging at the predetermined times. I usually time the charging to end right before I wake up, so the battery doesn't stay fully charged for too long. I heard batteries corrode faster when they're fully charged.
When my battery life starts getting shorter than usual, I let them drain until the phone turns off automatically (well I actually try not to get to that point, but seldom succeeded ), and as soon as possible charge it until full.
Usually the battery holds longer then. It has something to do with teaching the battery about the true empty and true full.. or something.....
AFAIK. CMIIW.
doesn't the nexus s have a built in cut-off feature so it will only charge to 95% though? I figure that would take care of the full charge issue. i'm also not sure if lithium ion batteries have a memory, but you could always reset the battery stats if you're on root to compensate for the whole draining and fully charging thing.
hoponpop said:
doesn't the nexus s have a built in cut-off feature so it will only charge to 95% though? I figure that would take care of the full charge issue. i'm also not sure if lithium ion batteries have a memory, but you could always reset the battery stats if you're on root to compensate for the whole draining and fully charging thing.
Click to expand...
Click to collapse
Battery stats! That's the word I was looking for No I wasn't referring to the memory effect
I don't know what would happen when the cut-off feature kicks up. My Nexus S still shows a charging icon even a while after full, so I don't wanna risk it.
The best way is by touching the charger unit after a while and see if it's warm/hot. If it is, it's still charging. But you gotta give it time to cool down first (after it's finished charging) Haven't gotten around to it, though. Always forgot to check the charger
bprabawabr said:
Battery stats! That's the word I was looking for No I wasn't referring to the memory effect
I don't know what would happen when the cut-off feature kicks up. My Nexus S still shows a charging icon even a while after full, so I don't wanna risk it.
The best way is by touching the charger unit after a while and see if it's warm/hot. If it is, it's still charging. But you gotta give it time to cool down first (after it's finished charging) Haven't gotten around to it, though. Always forgot to check the charger
Click to expand...
Click to collapse
lol, I know that my phone for sure won't charge to 100% from watching it, so even after a night of charging it's still at 95%. I've read a few explanations on this forum about the whole not fully charging thing too, so i'm pretty sure that it's like that on purpose.

"Hypermiler" (Battery Life) Tips

This is a little bit of a boast, I guess you could say... but also educational in a way.
This is my most recent battery life. I found that when I posted my screenshots, people think they are faked in some way. (Posted it here and other GS3 forums) They are not. I am using the stock battery my phone came with. NOT an extended battery. And you can see from the battery graph that the phone was not charged. I guess this is to show that you can use your phone heavily, and still get amazing battery life.
I am using the stock jellybean leak. Not rooted or unlocked.
This is everything I have done to get good battery life.
-I turned the LED touch lights off (I don't like them, they're so bright)
-I have all vibrations off. My phone does not ever vibrate.
-I have power save on.
-I have S-Voice "wake command" off.
-I have motion control disabled.
-I am almost always on wifi (work & home)
-When I am on wifi, I turn mobile data off.
-When I am going to bed, I put my phone in airplane mode.
-I rely heavily on the task manager, I clear my open windows and under the "RAM" tab I clear memory. Probably once an hour.
-I have my sync OFF. I check my email manually.
-Auto brightness.
-I never partially charge. I let my battery go all the way down to 1% then I charge it to 100%. Always.
-Always have a dark background, if possible.
Thats everything. Mind you, I didn't make or receive any phone calls on this cycle. But I did use my phone, as you can see I didn't just let it sit around. Device idle was like 3%?
Anyone else a "hypermiler" like me? I don't get this much screen time every time, it ranges from 5-7. I've gotten more than this and I've gotten less.
Hope this can help even if it's only a little.
Sent from my SCH-I535 using xda app-developers app
josh995 said:
-I rely heavily on the task manager, I clear my open windows and under the "RAM" tab I clear memory. Probably once an hour.
-Auto brightness.
-I never partially charge. I let my battery go all the way down to 1% then I charge it to 100%. Always.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
-Clearing the ram too much actually drains the battery more because certain apps will have to auto start again every time you clear memory
-Keeping it at around 0-30% all the time should save you more.(I can still see my screen during the day at 30%)
-That doesn't do anything.
josh995 said:
-When I am going to bed, I put my phone in airplane mode.
-I rely heavily on the task manager, I clear my open windows and under the "RAM" tab I clear memory. Probably once an hour.
-Auto brightness.
-I never partially charge. I let my battery go all the way down to 1% then I charge it to 100%. Always.
Click to expand...
Click to collapse
-Are there no A/C outlets in your bedroom?
-What the previous guy said, this is a stupid thing to do. Java was designed around efficient use of resources, and restarting running apps (which would happen, unless you have them removed entirely) would use more processing power than you had saved by not having the tasks running in the first place.
-Using Auto is causing the system to periodically poll the light sensor, draining more battery than used otherwise.
-This is how you kill Li-Ion batteries (one way, at least). The whole spiel about discharging fully, THEN charging fully or the battery will have some sort of "memory" of capacity less than actual capacity is how Ni-Cad rechargables work, not Li-Ions. Li-Ion batteries are the opposite. For superior life, keep them topped up as much as possible. FYI
I hope THIS helped, more than a little.
There are plenty of outlets in my room. Lol I just don't need to use them that often as you can see also I hate getting calls and messages in the middle of the night but I use my phone as an alarm sometimes so airplane mode just seems convenient.
This is just what I do. I mean, some of the things I do may not help at all. But this is what I do with Android phones and I've always gotten really good battery life. I've always, always gone down to 1% then charged up to 100% and I've never had a battery go bad on me. Then again I only ever keep a phone for 1 year. I do know that these batteries don't have the memory problem, I just can't bring myself to not fully discharge or charge. I have mild OCD, for real. Little things like that brother me
I'll play with backlighting to see what that does for me.
I've gotta be doing something right. Idk about the task manager, I've just always liked not having programs running if I don't need them to be. I know they arent "running" but it just gives me peace of mind, I guess.
Thanks for the recommendations I will try them.
Sent from my SCH-I535 using xda app-developers app
josh995 said:
There are plenty of outlets in my room. Lol I just don't need to use them that often as you can see also I hate getting calls and messages in the middle of the night but I use my phone as an alarm sometimes so airplane mode just seems convenient.
This is just what I do. I mean, some of the things I do may not help at all. But this is what I do with Android phones and I've always gotten really good battery life. I've always, always gone down to 1% then charged up to 100% and I've never had a battery go bad on me. Then again I only ever keep a phone for 1 year.
I'll play with backlighting to see what that does for me.
I've gotta be doing something right. Idk about the task manager, I've just always liked not having programs running if I don't need them to be. I know they arent "running" but it just gives me peace of mind, I guess.
Thanks for the recommendations I will try them.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
You getting really good battery life =/= you getting the best battery life possible.
I have pushed ~2 days of battery life without charging many times on my GS3 (with all the bells and whistles running, just mobile data turned off when i'm not commuting), i just don't have a reliable measurement because:
1. I'm flashing mods/roms/kernels/whatever multiple times per week, and
2. I usually charge my phone when it's convenient, which is fairly often.
charlieg90 said:
You getting really good battery life =/= you getting the best battery life possible.
I have pushed ~2 days of battery life without charging many times on my GS3 (with all the bells and whistles running, just mobile data turned off when i'm not commuting), i just don't have a reliable measurement because:
1. I'm flashing mods/roms/kernels/whatever multiple times per week, and
2. I usually charge my phone when it's convenient, which is fairly often.
Click to expand...
Click to collapse
I stopped flashing because of my OCD. I mean, I'm not crazy but it causes perfection issues and all the ROMs I was flashing had glitches here and there and Idk if you've known anyone with OCD but with the perfection issue, those glitches were all I could think about. So there went flashing. Lol.
Also comes into play with the charging thing. You seem knowledgeable in what you said but even though you said keeping it topped up is best, in my mind, that's destroying my battery. Lol. I really do appreciate your info though.
Sent from my SCH-I535 using xda app-developers app
josh995 said:
my OCD
Click to expand...
Click to collapse
I'm glad you said it, so that I didn't have to. :silly:
I read your post and the first thing that came to mind was, "there is medication for that, you know.":laugh:
Here's my .02. My battery never lasts that long. Not even close. I'd feel disappointed if it did. I bought my gsiii with the intent of gobbling up unlimited data and using the oc'd processor to run apps till the phone is so hot I have to set it down. I've burned up almost 6gigs of data since the 7th. I get around 4 hours of screen on time most generally. I also throw it on a charger whenever I have the chance. My battery rarely dips below 50%. Like others have said, full discharge cycles are for ni-cad batteries. Li-ion doesn't benefit. Good battery life for me is the lg flip phone we have on a diff line that lasts a couple weeks.
Sent from my SCH-I535 using Xparent ICS Tapatalk 2
josh995 said:
I stopped flashing because of my OCD. I mean, I'm not crazy but it causes perfection issues and all the ROMs I was flashing had glitches here and there and Idk if you've known anyone with OCD but with the perfection issue, those glitches were all I could think about. So there went flashing. Lol.
Also comes into play with the charging thing. You seem knowledgeable in what you said but even though you said keeping it topped up is best, in my mind, that's destroying my battery. Lol. I really do appreciate your info though.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Okay, okay, as long as you admit it... I'll stop being a snarky jerk. I'm totally the same way though. Perfectionist to the core.
It's a very bad idea to let the battery go down to 1% regularly, lithium batteries should be charged more often for better life and more cycles
Sorry but I still just don't believe 7 hours of screen on time. 4 is above average even amazing screen on time for this phone and stock battery. I suppose there is the possibility of using 0 percent brightness, or even lux brightness or something similar to get the brightness even lower.
You said you use auto brightness, I'm sorry I just don't buy it.
People with the extended batteries are getting 7 hours of screen on time not stock batteries.
7 hours of screen on time is literally double almost every other phone on the market with stock batteries. I really fail to see how having minimum usage and a high performing rom will get you double screen on time.
Edit: with that said, in my current situation I will never have wifi access plus I tether a lot so I really have yet to personally see screen on time since I rooted. Before root and stock I got about 3.5 of screen on time.
Not trying to be a douche or anything just very curious about how 7 hours comes about.
Sent from my SCH-I535 using Tapatalk 2
bond32 said:
Sorry but I still just don't believe 7 hours of screen on time. 4 is above average even amazing screen on time for this phone and stock battery. I suppose there is the possibility of using 0 percent brightness, or even lux brightness or something similar to get the brightness even lower.
You said you use auto brightness, I'm sorry I just don't buy it.
People with the extended batteries are getting 7 hours of screen on time not stock batteries.
7 hours of screen on time is literally double almost every other phone on the market with stock batteries. I really fail to see how having minimum usage and a high performing rom will get you double screen on time.
Edit: with that said, in my current situation I will never have wifi access plus I tether a lot so I really have yet to personally see screen on time since I rooted. Before root and stock I got about 3.5 of screen on time.
Not trying to be a douche or anything just very curious about how 7 hours comes about.
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
you dont get 7 hours because you are not doing what op did for perfection, and you just like other "4 hour" guys in this thread. I can confirm 7 hours usage is totally possible and what left can support one day idle time when you turn off data etc. Iusually dont do that because I like my phone work at full functionality, but I also like tinkering around to keep maximum use of juice, by eliminating wake locks and autostart.
killing background helps sometimes because some stupid apps keeping using cpu after backgrounded. op go and get a iphone, its perfect for OCD since it can get zero unwanted background activity, amazing idle time and stable usage with relatively easier configuration and tweaking.
1% is NO. 1 battery killer, heat is NO. 2, top up at 100% is NO. 3. Li based battery is at best 40%. but plaese its just a phone, charge and use anytime you want. phone outdated way earlier than battery.
Sent from my SCH-I535 using Tapatalk 2
generalmilk said:
you dont get 7 hours because you are not doing what op did for perfection, and you just like other "4 hour" guys in this thread. I can confirm 7 hours usage is totally possible and what left can support one day idle time when you turn off data etc. Iusually dont do that because I like my phone work at full functionality, but I also like tinkering around to keep maximum use of juice, by eliminating wake locks and autostart.
killing background helps sometimes because some stupid apps keeping using cpu after backgrounded. op go and get a iphone, its perfect for OCD since it can get zero unwanted background activity, amazing idle time and stable usage with relatively easier configuration and tweaking.
1% is NO. 1 battery killer, heat is NO. 2, top up at 100% is NO. 3. Li based battery is at best 40%. but plaese its just a phone, charge and use anytime you want. phone outdated way earlier than battery.
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
While I understand what you're saying I think you misread my post. I was strickly referring to the screen on time which 7 hours of screen on time with stock battery is inconceivable. 4 is about the most you would normally see.
7 hours of USAGE is common.
Sent from my A500 using Tapatalk 2
Well I mean. You don't have to believe me. I mean I have nothing to offer but my word. I do use auto brightness. But because of the suggestion I'll probably set it to manual and see what that does.
I got 7 hours screen on time with the stock battery. The battery says "3.8 v li-ion battery"
I've gotten more than this is the past but I've also gotten less.
Like I said you don't have to believe me but... I'm using the stock battery.
And to the poster who mentioned to get an iPhone - I have one for my business line
Sent from my SCH-I535 using xda app-developers app
battery statistics are poor statistics in general. there are too many variables. luckily we have removeable batteries if we need mroe juice.
heres some postings to add to the mix
put my phone through the paces with fantasy football.
held up pretty well. stock battery mind you. on pace for nearly 8 hrs of on screen time. This isnt with typical use though... With typical use I can get 20hrs and 5-6 hrs of screen time. I thought anywhere from 4-6 hours of on screen time was what people were suppposed to be getting.
Yeah we all use our phone differently. I rarely actually talk on the phone with my GS3 because I use my iPhone for that. But everything else I do on my GS3, reading news, some browsing, xda.
I just thought I'd share what I do for people that may want to get better battery life.
Sent from my SCH-I535 using xda app-developers app
bond32 said:
While I understand what you're saying I think you misread my post. I was strickly referring to the screen on time which 7 hours of screen on time with stock battery is inconceivable. 4 is about the most you would normally see.
7 hours of USAGE is common.
Sent from my A500 using Tapatalk 2
Click to expand...
Click to collapse
Then I shouldn't use the word "usage". I meant 7 hours screen on time. Sometimes I got 8 or more, but only use it continuously after charging, no idle time.
---------- Post added at 12:10 PM ---------- Previous post was at 11:58 AM ----------
josh995 said:
Yeah we all use our phone differently. I rarely actually talk on the phone with my GS3 because I use my iPhone for that. But everything else I do on my GS3, reading news, some browsing, xda.
I just thought I'd share what I do for people that may want to get better battery life.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Yet that involves turning off data. IMO the smartphone should always stay online. In my experience, iPhone can get constant -4 ~ -5ma juice flow during idle even with data (2G) and all the push notifications on, which are the only things I want for stay online. I feel its hard to get similar result on my GS3 though.
generalmilk said:
Yet that involves turning off data. IMO the smartphone should always stay online. In my experience, iPhone can get constant -4 ~ -5ma juice flow during idle even with data (2G) and all the push notifications on, which are the only things I want for stay online. I feel its hard to get similar result on my GS3 though.
Click to expand...
Click to collapse
I'm always online, whether it's wi-fi or 4G. Luckily I have wi-fi at home and at work.
Like, literally as I'm walking out the door of my house, I turn on my mobile data, and when I get to work I turn it off. When I'm leaving work I turn mobile data back on and when I get home I turn it off.
josh995 said:
I'm always online, whether it's wi-fi or 4G. Luckily I have wi-fi at home and at work.
Like, literally as I'm walking out the door of my house, I turn on my mobile data, and when I get to work I turn it off. When I'm leaving work I turn mobile data back on and when I get home I turn it off.
Click to expand...
Click to collapse
what you did is pointless. If you leave data on, data is not connected when wifi is connected, and it will connect automatically when no wifi connection.
generalmilk said:
what you did is pointless. If you leave data on, data is not connected when wifi is connected, and it will connect automatically when no wifi connection.
Click to expand...
Click to collapse
It's not pointless to me. As I said a few posts before... I have OCD, obsessive compulsive disorder. Things like this affect me. I know that being connected to Wi-Fi that data is not connected, but in my brain, it's as if something is telling me that because my data toggle is on, it's running.
I really can't help it.
Sent from my SCH-I535 using xda app-developers app

Battery life problems.

Hello, I'm currently running cm 9, however the battery life is just awful
When the phone is on sleep it loses like 1 percent every 5-10 minutes
I am using an extended battery as well, please tell me what to do I was on GB before and the battery was outstanding, I could go on one charge the whole day with heavy usage, now i dont think I can make it through the day with light usage on this
thank you
EDIT: This could be a sleep problem, because when the device is on, the battery is normal
If you flashed the Feb 27 cm9 you should flash proton kernel so you can watch videos. Battery life isn't as good as gb no matter what you do. Also give it some time to settle in. It takes more than a couple hours.
alright thank you... I just flashed the newest version of cm9 a few hours ago, I was flashing a bunch of roms and this one seemed the best... do you know how to force a device into deep sleep cause that seems to be the problem i believe
OK I was just on 20 percent, then i rebooted my phone, and now im on 2 percent... im seriously considering going back to gb
Sounds more like a battery thing? With CM9.? + Proton I'm getting at least a day* with light use. Maybe a bad app or combo of apps? What does BBS say is eating the charge?
* - I say at least a day because I can't not use it for that long.
Sent from my SGH-T959V using xda app-developers app
Stuck on hold said:
Sounds more like a battery thing? With CM9.? + Proton I'm getting at least a day* with light use. Maybe a bad app or combo of apps? What does BBS say is eating the charge?
* - I say at least a day because I can't not use it for that long.
Sent from my SGH-T959V using xda app-developers app
Click to expand...
Click to collapse
just the screen and the android system... very interesting thing though is happening
I'm running a bunch of quadrants to get the battery down to 0, and the battery is all the way down to 1%, however it's been on 1% for like 6 quadrant tests... maybe its just a problem with the indicator, however another indicator also says it's at 1%... very interesting
If you are on CM9, I suggest you flash Hefe or Proton.
I use Hefe because according to the posts being made it puts your phone into deep sleep, which means longer battery life.
tstrat said:
OK I was just on 20 percent, then i rebooted my phone, and now im on 2 percent... im seriously considering going back to gb
Click to expand...
Click to collapse
Definitely a battery problem. This happens to me on one of my batteries but not on another. Time to buy a new one. I haven't tested it fully but it does appear to be just a display issue. Sometimes the bad battery will make the phone display 1% but it will still act as if it had way more than 1% charge left. I haven't done any testing on that regard but that's what it appears to do.
FBis251 said:
Definitely a battery problem. This happens to me on one of my batteries but not on another. Time to buy a new one. I haven't tested it fully but it does appear to be just a display issue. Sometimes the bad battery will make the phone display 1% but it will still act as if it had way more than 1% charge left. I haven't done any testing on that regard but that's what it appears to do.
Click to expand...
Click to collapse
I don't believe it to be a battery problem, because I've been on GB with absolutely no problems and exceptional battery... I just upgraded to ics not long ago, and the battery life instantly screwed up
Have you set the cpu governor to anything silly like performance?
Have you let it charge up fully at least once?
Search xda for "better battery stats" app, use it to see if you're getting deep sleep.
Flash hefe over release 8 and youll have a little better battery. Proton doesnt deep sleep
Sent from my SGH-T959V using Tapatalk 2
Proton DOES deep sleep. That was one of its major features.
Certain scheduler/governor combinations work better on different kernels, though. If the specific one you like most sleeps better on Hefe, great. If the one you like does best on Proton, great. Just be aware that most issues are either physical or user-inflicted...
In this case, your battery is almost certainly dying. The variance in power over a reboot is a definite tell that your battery is probably swollen. If you can spin it on a table, the cells are starting to die. This does not mean you can't keep using it, but it does mean that your battery life will be irregular. It also means that you'll have significantly "higher" battery levels if you reboot the phone with external power connected, but the battery will discharge very quickly if it hasn't actually reached whatever level it believes it should be at.

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