Develop Bugs

Want great battery life and a stable phone?

Don't use any type of battery monitor, widget or notification.
I was getting good battery life but had a few weird cases of reboots and where the phone would just shutdown and then need battery pull to get back up.
Since I stopped using any type of battery monitor/widget/notification my battery life is much much better (same usage pattern/apps) and I have not had a single reboot or issue.
I just wanted to share this for people having problems. Worth a shot.

I use JuiceDefender Ultimate and my battery life are more efficent!

Darkness Fury said:
I use JuiceDefender Ultimate and my battery life are more efficent!
Click to expand...
Click to collapse
+1
i've been getting close to 20 hours on the standard battery.
expecting my extended oem battery soon!
GSM version of course!

There are a number of things that affect this. Most importantly, use CPU spy to check how much time your phone spends at each frequency, or rather in deep sleep. Some monitors in certain settings will keep the phone awake, draining battery.

Tubes6al4v said:
There are a number of things that affect this. Most importantly, use CPU spy to check how much time your phone spends at each frequency, or rather in deep sleep. Some monitors in certain settings will keep the phone awake, draining battery.
Click to expand...
Click to collapse
My AndroidOS wake time is much lower after getting rid of the battery status apps

I use Circle Battery Widget https://market.android.com/details?...oid.CircleBatteryWidget&feature=search_result and it has no noticeable effect on battery life.

I'm using Battery Solo Widget (was using Circle Battery Widget before) and it does not have any noticeable impact on battery life. Right now I'm at 36 hours on battery with 24% left

Lemim0uth said:
I'm using Battery Solo Widget (was using Circle Battery Widget before) and it does not have any noticeable impact on battery life. Right now I'm at 36 hours on battery with 24% left
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Click to collapse
Do you even power on your phone during the day(s)?

Use airplane mode at night while your u sleep. I lose less than 1%
Sent from my Galaxy Nexus using xda premium

Well the screen was on for 1 hour and 50 minutes (at max brightness) according to battery stats, so I'm not using it THAT much but the point is that a battery widget doesn't seem to have a big impact on battery life.
I also noticed that if I stop constantly closing applications after using them (by swiping on the ICS task switcher), my battery lasts a little longer

empiricDev said:
Use airplane mode at night while your u sleep. I lose less than 1%
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Click to collapse
and lose 100% of your incoming calls or texts. good for battery life, not good for anybody who has a job/life that requires constant connectivity.

roflboxer said:
and lose 100% of your incoming calls or texts. good for battery life, not good for anybody who has a job/life that requires constant connectivity.
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Click to collapse
Yeah this isnt an option, I need to see missed calls and what not
However, when I do not have the androidOS wake bug, if my phone is on wifi I lose ~3-7% overnight, which is good IMO

I went to bed last night with 96% and left everything on and syncing and woke up to 88% so I think I'm content with letting it do it's thing. That was my first night with it so I expect it only to get better.
Sent from my Galaxy Nexus using xda premium

Double post.
Sent from my Galaxy Nexus using xda premium

roflboxer said:
and lose 100% of your incoming calls or texts. good for battery life, not good for anybody who has a job/life that requires constant connectivity.
Click to expand...
Click to collapse
I suppose if you work 24/7 you are correct. For those of us that don't, airplane mode is a great option. Also Google voice solves the missed call problem - you will be notified by email when you take airplane mode off.
Sent from my Galaxy Nexus using xda premium

As crappy as the battery life is during daily use...idle at night even with wifi left on and updating turned on its still only about 1% loss per hour...Also running the th3ory axiom roms too if that helps.

empiricDev said:
I suppose if you work 24/7 you are correct. For those of us that don't, airplane mode is a great option. Also Google voice solves the missed call problem - you will be notified by email when you take airplane mode off.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
What if someone calls you and its an emergency? Like one of your kids calling to say they're stranded somewhere? Still a good idea? Or how about just plug in your phone while you sleep? Brilliant!!!

empiricDev said:
Use airplane mode at night while your u sleep. I lose less than 1%
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
You might as well turn off your phone if your doing that at night.
Sent from my Galaxy Nexus using XDA App

mv522 said:
You might as well turn off your phone if your doing that at night.
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
+1 This
Sent from my Galaxy Nexus using XDA App

I run the stock GSM battery, it lasts all day so I have no complaints.
If I had the samsung spare battery w/ charger for business trips i'd be set for those flights and airport waits.

Battery WOW!

Might be an anomaly but wow! Using a standard qcell with nfc.
Sent from my SAMSUNG-SGH-I747 using xda premium

it shows as if it nearly died and you recharged it or put in a second battery...

Deputy13 said:
it shows as if it nearly died and you recharged it or put in a second battery...
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Click to collapse
That would make more sense. I was trying to remember if I had swapped batteries out and couldn't remember. Sucks being old Wasn't even looking at the graph either. Feel pretty stupid about now. Thanks for that. j/k Why didn't it reset when the battery changed?
Sent from my SPH-D710 using xda premium

No clue, mind of its own I reckon. Sometimes it does sometimes it doesnt. I'm sure there is an actual real answer, but I don't know it lol
Sent from my SAMSUNG-SGH-I747 using xda premium

Battery graph
crawrj said:
That would make more sense. I was trying to remember if I had swapped batteries out and couldn't remember. Sucks being old Wasn't even looking at the graph either. Feel pretty stupid about now. Thanks for that. j/k Why didn't it reset when the battery changed?
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
I'm not sure if the phone can tell the change in battery as it doesn't have any hardware id per say. About the graph, it only resets on a full charge?

i have rooted, changed rom and kernel and i am not getting that much better battery life.. my phone was 100% over night when I woke up it was at 91%. i googled 1 thing and went down to 83%. not sure what to say about this anymore...

I get about 2 days with 3 hours on. Works for me.

2 days 3 hours? are you using your phone or just letting it sit there?

lostsoul565 said:
2 days 3 hours? are you using your phone or just letting it sit there?
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Click to collapse
Ummmmm I use it when I need to. Im not a "heavy" user I guess. But it works for me. I don't care much about battery life. As long as it lasts a day that's fine for me. I have a charger at work, car and home so I don't worry about it. You have to realize, I charge before I go to bed. So the phone sits all night for about 8 hours. Then goes the full day. Then again that night it sits for about another 8 hours. So there are pretty much 2 nights where it sits and is not being used.

I use to get a day and a half charge same method but now my phone dies so quickly I don't if my car charger could be the reason for the sudden change I've been using it a lot for gps

I had a problem with mine the other night too, I charged it, took it off the charger at 100% and 15 mins later it was down to 91 % without being used. Within two hours it was down to 31% and extremely hot with no use. When I checked what was using the battery it showed android os . I did a factory reset and the phone has amazing battery life again!!!
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

jasvncnt1 said:
I get about 2 days with 3 hours on. Works for me.
Click to expand...
Click to collapse
I also can make 2 days easily using the phone, browsing the news and taking emails (3 accounts).
How ? No GPS, no LTE, disabled all bloatwares, auto brightness on, bluetooth on only 1 hour each day while driving to/from work.

How do you disable bloatware

dajeoo said:
I had a problem with mine the other night too, I charged it, took it off the charger at 100% and 15 mins later it was down to 91 % without being used. Within two hours it was down to 31% and extremely hot with no use. When I checked what was using the battery it showed android os . I did a factory reset and the phone has amazing battery life again!!!
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Sounds like the Gsiff_daemon bug.

ariel123 said:
How do you disable bloatware
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Click to collapse
Most of the bloatwares can be disabled by going to the Settings-Application Manager and then select All. Now select an app, for example at&t navigator, you'll see a button that says Disable, hit that button and you have successfully disabled that app. Do the same for rest of the other app.
Note: some of the default apps won't need disabled, until you are rooted and have Titanium backup.
Sent from my SAMSUNG-SGH-I747 using xda premium

I have used it a full day giving it a beat!!!
Sent from my SGH-I747M using xda premium

I wasn't impressed at first use of my Hyperion 4200 may battery, but the second full cycle charge is really impressing me!
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

I am running task & ktoonzes aokp rom, using the scary governor and underclocking to 1080 mhz. I also have juice defender ultimate running & a screen filter. I am a moderate user. I use my phone for internet lte, emails, nothing major really. Anyway, I am easilly getting two days of solid moderate use. My wife looks at me a little funny when I don't charge my phone at night. lol

9% left and seeing how far I can go.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

While traveling around Japan for the past few weeks
Used it mostly to take pictures and videos, listen to music, play pewpew and occasionally watch a movie or two. Held up pretty damn well between charges in flight mode.

Deep Sleep non rooted phone

Hi there, I got a random question concerning deep sleep on a non rooted phone.
Well my problem is that I know that my phone is not going in deep sleep (I saw it on cpu spy), I usually use betterbattery stat to know what app keeps my phone awake, but I just bought my phone yesterday and feel bad rooting it already.
Is there a way I can know what app is killing the battery of my phone? It is almost wasting more battery while my screen is off than on.
Thank you a lot

tenkaishy said:
Hi there, I got a random question concerning deep sleep on a non rooted phone.
Well my problem is that I know that my phone is not going in deep sleep (I saw it on cpu spy), I usually use betterbattery stat to know what app keeps my phone awake, but I just bought my phone yesterday and feel bad rooting it already.
Is there a way I can know what app is killing the battery of my phone? It is almost wasting more battery while my screen is off than on.
Thank you a lot
Click to expand...
Click to collapse
My phone wont go below 384 Mhz and Im loosing 1% every 15min or so (without using my phone). I tried rebooting, but wont help my case.

Why is 1 percent every 15 minutes a problem? I work a 10 hour day and my battery is 60 percent when I'm done I consider that good.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Uh cause I lose less then one percent an hour ocD to 2.1 so yea its bad use juice defender to turn off all radios while screen is off works for me
Sent from my SGH-I747 using xda premium

Well my biggest problem is that my phone will just not enter deep sleep. Loosing 1% every 10-15min is more than what it should be. I'm loosing so much battery while not using my phone. In cpu spy I have no deep sleep. I did use juive defender for the a couple hours but didn't help anything.

What does your percentages say?
Sent from my SAMSUNG-SGH-I747 using xda premium

Ends said:
What does your percentages say?
Sent from my SAMSUNG-SGH-I747 using xda premium
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Click to collapse
I dont get what you mean?

Nevermind; if you need more time on your phone you should task kill text messaging and any account syncs (email, calender, etc). You can even kill "phone" if you need to. I just think 24 hours is a reasonable amount of time for a charge to run out.The phone can run 3 days or so on absolute idle but that defeats the purpose. There are massive batteries available for this phone in the low $20 range in the accessories section. Maybe that's a better way if you need to go camping all weekend on a charge or something. I'm curious (nosey) what do you need so much time for?

jeffdaman said:
Nevermind; if you need more time on your phone you should task kill text messaging and any account syncs (email, calender, etc). You can even kill "phone" if you need to. I just think 24 hours is a reasonable amount of time for a charge to run out.The phone can run 3 days or so on absolute idle but that defeats the purpose. There are massive batteries available for this phone in the low $20 range in the accessories section. Maybe that's a better way if you need to go camping all weekend on a charge or something. I'm curious (nosey) what do you need so much time for?
Click to expand...
Click to collapse
Well the thing is that my phone is lasting only half a day with a normal/moderate usage. Im on wifi and airplane mode, but still, my phone wont go to deep sleep and my battery is dying way too fast. So I'm just trying to understand why my phone is dying like this, what could possibly keep it awake all the time, Im deleting a couple of apps, but wont change anything.

tenkaishy said:
Well the thing is that my phone is lasting only half a day with a normal/moderate usage. Im on wifi and airplane mode, but still, my phone wont go to deep sleep and my battery is dying way too fast. So I'm just trying to understand why my phone is dying like this, what could possibly keep it awake all the time, Im deleting a couple of apps, but wont change anything.
Click to expand...
Click to collapse
It's all sort of irrelevant without knowing what "normal/moderate usage" is. What is your screen on time?

UOTE=30831151]It's all sort of irrelevant without knowing what "normal/moderate usage" is. What is your screen on time?[/QUOTE]
Screen on 2h, battery life of 11h, device was awake all the time and I have auto brightness on. Android Os, and système take 25% each approximately.

What are you calling deep sleep? For that matter wouldn't CPU spy be keeping awake?

jeffdaman said:
What are you calling deep sleep? For that matter wouldn't CPU spy be keeping awake?
Click to expand...
Click to collapse
Nop, cpu spy doesn't keep phone awake (at least on my s2 I was able to have deep sleep, but now on my s3 no) by deep sleep I mean there is nothing working on my phone, like no cpu. (I'm not good at explaining stuff )

You can still use betterbattery stats unrooted to check for rogue apps running in the background. Some of the options won't be available since they need root access but the app will still run. I installed it before I rooted my phone and was able to track down open apps causing battery drain.

rizzo269 said:
You can still use betterbattery stats unrooted to check for rogue apps running in the background. Some of the options won't be available since they need root access but the app will still run. I installed it before I rooted my phone and was able to track down open apps causing battery drain.
Click to expand...
Click to collapse
I didnt know I could use it without rooting I will check that now, but here is what I mean by my phone is always awake:

I didnt know how to edit to add another picture, sorry for doing a new reply:

jeffdaman said:
Why is 1 percent every 15 minutes a problem? I work a 10 hour day and my battery is 60 percent when I'm done I consider that good.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
1% every fifteen minutes is a problem!! That equates to 4% an hour while the phone is idle, not good.
@tenkaishy....When u install BBS someone will be able to better identify what is waking your phone.

werked said:
1% every fifteen minutes is a problem!! That equates to 4% an hour while the phone is idle, not good.
@tenkaishy....When u install BBS someone will be able to better identify what is waking your phone.
Click to expand...
Click to collapse
Here Are the stats of my BBS, I honestly dont understand them, if someone could help me

Looks like the backup to Google servers is checked and constantly running. I don't have that option selected on mine. Maybe turn it off and see if the phone sleeps?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

rizzo269 said:
Looks like the backup to Google servers is checked and constantly running. I don't have that option selected on mine. Maybe turn it off and see if the phone sleeps?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
I disabled it, but my phone is still not going to deep sleep, damm it! Thanks for the help though

Limit the Note 2 from 1.6Ghz to 1.1Ghz with build in feature to save battery

I know most of you already notice this but if you don't:
In Setting/ Power saving mode, check the "CPU power saving" then your phone will be limit to 1.1GHz max from 1.6Ghz.
I would suggest to tick on the "Screen power saving", "background color" and "turn off haptic feedback" to save some extra juice.

LTE on. 24h unplugged. 75% screen brightness. Full heavy haptic feedback. Heavy gaming and Internet use. Phone calls. Texting. 3D live wallpaper. Still 7h screen on time before the phone finally had to be plugged in.
I don't know what you use your phone for but I'm going crazy on mine and can't kill the battery. If you need more juice, then more power to ya. I can't fathom why.
Sent from my SAMSUNG-SGH-I317 using xda premium

LOL I tried to kill mine but it out lasted me I woke up at 5 for work and by end of the day I went on a 2 hour gaming session to try and completely drain it and got it to 9% but it was like 10 and had work next day so gave up. I lost

I'm still suffering from battery OCD after coming from the iphone 4S. Now I feel like plugging in my note 2 whenever I'm at my desk at work.... So you guys don't think I need to?

I dont touch my charger till I hit the bed.
Sent from my SGH-I317M using xda app-developers app

UCLAKoolman said:
I'm still suffering from battery OCD after coming from the iphone 4S. Now I feel like plugging in my note 2 whenever I'm at my desk at work.... So you guys don't think I need to?
Click to expand...
Click to collapse
Try a day without charging your phone at your desk. Yesterday I pulled in about 7 hours of on-screen time. That's with LTE and anything else internet intensive you could imagine. The only way you'll overcome that worry you have is to test it out yourself. I'm sure you won't be disappointed.
Sent from my SAMSUNG-SGH-I317 using xda premium

I run mine full cycle every time to 1% left then charge. Best way to maximize battery life

Err0xx said:
LTE on. 24h unplugged. 75% screen brightness. Full heavy haptic feedback. Heavy gaming and Internet use. Phone calls. Texting. 3D live wallpaper. Still 7h screen on time before the phone finally had to be plugged in.
I don't know what you use your phone for but I'm going crazy on mine and can't kill the battery. If you need more juice, then more power to ya. I can't fathom why.
Sent from my SAMSUNG-SGH-I317 using xda premium
Click to expand...
Click to collapse
I'm with you. I came from the Skyrocket and it was a struggle to get through a full weekday on LTE. In the past week with the Note 2 I don't even have to think about charging it when I'm awake during the day. It's very liberating!

Suzook1 said:
I run mine full cycle every time to 1% left then charge. Best way to maximize battery life
Click to expand...
Click to collapse
I would understand this philosophy if the Note 2 didn't have an easily replaceable battery, but in a years time you could replace a poor battery for cheap. Just recently the stand with extra battery and charger was $30 on the Samsung site (it may still be that price)

I think its my ocd from my note 1. Always seeking the longest battery life possible
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

Jrockttu said:
I'm with you. I came from the Skyrocket and it was a struggle to get through a full weekday on LTE. In the past week with the Note 2 I don't even have to think about charging it when I'm awake during the day. It's very liberating!
Click to expand...
Click to collapse
I came from worse. I had an HTC Raider (Vivid) and that battery was horrid. Stupid HTC putting a 1620mah battery in a phone with LTE and a 4.5" screen
Sent from my SGH-I317M using xda premium

Err0xx said:
LTE on. 24h unplugged. 75% screen brightness. Full heavy haptic feedback. Heavy gaming and Internet use. Phone calls. Texting. 3D live wallpaper. Still 7h screen on time before the phone finally had to be plugged in.
I don't know what you use your phone for but I'm going crazy on mine and can't kill the battery. If you need more juice, then more power to ya. I can't fathom why.
Sent from my SAMSUNG-SGH-I317 using xda premium
Click to expand...
Click to collapse
Damn, I wish I could get run times like that. I usually get HSPA signal and after 16 hrs I'm dead with 4-5 hrs of screen on time. I mostly text and do web browsing. Maybe an hour of music with wifi on all the time and auto brightness. Still lasts longer than my SGS3 did.

My first charge is 7 hours screen time for 24 hours unplugged. Now it's going down hill to 4-4:30 hours after i rooted and remove bloats. Installed couple MoDs.. Dammed i wish i can go back to 7 hours screen time

sweetboy02125 said:
My first charge is 7 hours screen time for 24 hours unplugged. Now it's going down hill to 4-4:30 hours after i rooted and remove bloats. Installed couple MoDs.. Dammed i wish i can go back to 7 hours screen time
Click to expand...
Click to collapse
You do know to "remove bloat" all you had to do was go into the stock app manager in settings and disable anything you didn't want. That is actually a much better solution than "freezing" with TiBu or removing altogether. I'm not convinced root and mods are 100% stable yet. Most people reporting decreased battery life are those that have rooted or modded something. I'm still 100% stock with ATT stuff disabled and batt life is still 7+ hours.
Sent from my SAMSUNG-SGH-I317 using xda premium

Err0xx said:
You do know to "remove bloat" all you had to do was go into the stock app manager in settings and disable anything you didn't want. That is actually a much better solution than "freezing" with TiBu or removing altogether. I'm not convinced root and mods are 100% stable yet. Most people reporting decreased battery life are those that have rooted or modded something. I'm still 100% stock with ATT stuff disabled and batt life is still 7+ hours.
Sent from my SAMSUNG-SGH-I317 using xda premium
Click to expand...
Click to collapse
Even bare stock I wasn't getting that much screen on time. So far I've only rooted and changed the kernel. Though today my battery life is starting off good. Yesterday I ticked the power saving option for the screen. I'll post an update tomorrow.

Today I was on for 5.5 hours, screen time of 2.2 and was at 54% with Power Saving On
So I went to bell and grabbed another battery
Time will tell if that helps
I could never reach 5 hours of screen time but could have the phone on for 30+ hours
I cant wait till we get more developer support, I used Francos Kernel with my galaxy nexus and it improved battery by 30 % and made my 8 hours overnight use only 2% battery. I was using 12-17% overnight with my note 2 asleep. Aside from kernels and roms I use this phone exactly the same as I did my Nexus. wifi off, bt off, gps on, push email on, auto brightness

UCLAKoolman said:
I'm still suffering from battery OCD after coming from the iphone 4S. Now I feel like plugging in my note 2 whenever I'm at my desk at work.... So you guys don't think I need to?
Click to expand...
Click to collapse
Lithium Ion batteries actually do better if you don't charge it constantly. In other words let it run down a bit before charging. You don't want to always keep "topping it off". But in general these batteries are much more resilient than others.
Just do some research. There's lots of info out there.

Suzook1 said:
I run mine full cycle every time to 1% left then charge. Best way to maximize battery life
Click to expand...
Click to collapse
Umm, no, it does not. You are stressing the battery out. Unless needed, dont keep the battery below 20%. Its healthier to charge the phone sporatically throughout the day.
These aren't nickel batteries...they dont need to be trained or "cycled"
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

I'm a battery test engineer so I have played around with Li-ion batts.
If you can keep the phone at cool temperature and charge at 40% and stop at 80% then keep doing 40-80, your battery will last double long
★♡★ AT&T Galaxy Note II ★♡★

erick161 said:
Umm, no, it does not. You are stressing the battery out. Unless needed, dont keep the battery below 20%. Its healthier to charge the phone sporatically throughout the day.
These aren't nickel batteries...they dont need to be trained or "cycled"
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
Click to expand...
Click to collapse
Agreed. Full discharges are not necessary for lithium ion batteries. Full discharges were needed for NiCad or NiMH batteries as they suffered from memory effect. LithIon doesn't suffer from this. With that said, a lot of experts do suggest discharging a LithIon periodically, maybe once a month or every other month.

How can I stop the kernel/os from draining my battery

It was never like this on my dna or rezound. Is there something I'm leaving on or what? Its killing me.
Sent from my awesome HTC ONE using xda app-developers app

I'm in the same boat. Last night mine used 17+% of the 69% used by apps. It's kind of ridiculous.
Sent from my phone using an app

Yea it is making me wish I could unlock it to get sone better battery saving roms
Sent from my HTC6500LVW using xda app-developers app

my problem is the kernel wakelocks for the wlan kernel.
At my university, they force dynamic ips on us, so my phone is literally awake about 80% of the time (even with screen off) and draining so much battery because it needs to get a new ip constantly.
I woke up, unplugged my phone, went back to sleep for 45 minutes and was down 5% when I woke up. When I'm at home (or when I use my virtual router in my apartment) the battery goes down about 1% every 2 hours with the screen off because the wakelocks dont happen on those networks.
Pisses me off