Develop Bugs

Getting GREAT battery life with new ROM (Lost just 20% in 16 hours)

See here: http://forum.xda-developers.com/showthread.php?t=1361108
Lost just 20% in 16 hours. This is of course with JuiceDefender and airplane mode scheduled to run over night. But it's still impressive as we used to get battery drains even at times phone was supopsed to sleep and AirPlane mode on.
My baseband is UGKK7, but that's not what cured it, I had this baseband installed days earlier and battery drain was awful.
In my case it appears all battery problems are cured:
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What's your standby current draw? In my HD2 android, I had about 4-9ma. But in Galaxy Nexus it's about 19-40ma which is pretty high. Judging from your screenshot, yours is 16ma in standby?

Possibly, I have no idea. Nexus is known from high default cpu voltage, maybe thats that or maybe it's my apps waking phone every now and then to check things, for example LED light notification app or Juice Defender.
Anyway, I'm pretty happy now, might tweak it some more when I have time, but it's now at the same level as my old SGS2, I'd say a bit better (I think I had 5% night drop on AirPlane mode on SGS2, but again it depends on apps).

luffyp said:
What's your standby current draw? In my HD2 android, I had about 4-9ma.
Click to expand...
Click to collapse
Just checked: it was constant -5mA throughout the night.

Have you, knowing you want to see good results, un-knowingly played less with your phone on this rom?
Sent from my Galaxy Nexus using xda premium

Tjotte said:
Have you, knowing you want to see good results, un-knowingly played less with your phone on this rom?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
That's not it, I know battery will go down when I actively use it. What I noticed is that I get great results when phone is idle. This didn't happen before, you would see battery drain even when idle at night in AirPlane mode. This means light use should also give better battery performance than before, I will be testing that.
Sent from Galaxy Nexus using Tapatalk

This is with Google+ and Facebook signed in. I just disabled all notifications from these apps and they appear to function properly, do not keep awake when not run.

schriss said:
This is with Google+ and Facebook signed in. I just disabled all notifications from these apps and they appear to function properly, do not keep awake when not run.
Click to expand...
Click to collapse
I dont know what I did but while IDLe, I get about 1% drain per hour, thats on 3G, sync on (gmail, google+, etc), no juicedefender or airplane mode.
I only tested it overnight, when Im sleeping, notice the ZERO wake locks and crappy signal; unbelievable!
Disclaimer: this was while I was sleeping, NO usage. Battery obviously goes down much quicker once the screen is on, but for idle time, I am content!

schriss said:
That's not it, I know battery will go down when I actively use it. What I noticed is that I get great results when phone is idle. This didn't happen before, you would see battery drain even when idle at night in AirPlane mode. This means light use should also give better battery performance than before, I will be testing that.
Sent from Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
ok, thank you keep on testing and keep us informed, always nice to get some info! Merry X-mas!
Sent from my Galaxy Nexus using xda premium

thats great to see how long it lasts while youre not using the phone... but how about while youre actually using it?

voxigenboy said:
thats great to see how long it lasts while youre not using the phone... but how about while youre actually using it?
Click to expand...
Click to collapse
For real... All these people posting up 15-20 hours of battery by putting it on airplane mode overnight is just useless info. Especially when most people put it on the charger overnight
Sent from my Galaxy Nexus using XDA App

Happy! said:
For real... All these people posting up 15-20 hours of battery by putting it on airplane mode overnight is just useless info. Especially when most people put it on the charger overnight
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
It is not useless info. Previously, when putting in AirPlane mode and not using the phone at all we would see big battery drain. Now we don't. This is to proove that now the phone actually goes to sleep whenever I don't use it. This is proper testing before and after applying one change.

voxigenboy said:
thats great to see how long it lasts while youre not using the phone... but how about while youre actually using it?
Click to expand...
Click to collapse
I will know next time I go to work. But since I never use it for all these 8-10 hours straight, I should have better battery, because whenever I will put the phone away, even for another 15mins, battery will stop dropping like it used to.
In other words, it will most likely still drop as usual while actively using the phone, but in overall I should get more battery because of much more efficient idle times.

Anyone else getting battery the bad?

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Just curious if this is what I should expect
Sprint Running stock with jame bond
Sent from my Galaxy Nexus using Tapatalk 2

How long was your screen on? Have trained the battery? Mine will hang in to that last 5percent for quite awhile before it dies. I get more than 4 hours of screen on time with 2 hours of calls when on wifi.
Sent from my Galaxy Nexus using XDA

tweaks?
screen on/awake times?
usage?
1 screenshot tells us nothing. But that looks pretty bad unless 3 hours of that was screen on time.

martonikaj said:
GSM/LTE?
ROM/kernel/tweaks?
screen on/awake times?
usage?
1 screenshot tells us nothing. But that looks pretty bad unless 3 hours of that was screen on time.
Click to expand...
Click to collapse
He's LTE. It says Sprint stock with James bond kernel in the OP.
Sent from my Galaxy Nexus using XDA

times_infinity said:
He's LTE. It says Sprint stock with James bond kernel in the OP.
Click to expand...
Click to collapse
Woops didn't see. Edited.
That's really bad then because he's just on EVDO (3G), not even on LTE assumedly.
We need to see his awake/screen on times. He's probably got some wakelock problems (at least).

Sounds about right. I usually get 6+ hours (heavy usage).
Stock 1750mah.
Sent from my Galaxy Nexus using XDA

Yeah my battery drains super fast when only on 3g. Nothing else running. When i try to actually use it like my last phone the thing drains like crazy. Tried both cm and stock. And diff kernels. I let my battery die and charge it fully over 5 times already. Another thing I noticed. I went to bed with 93% I wake up 8 hrs later. And its drained half way. Mind u its not even being used. I'm confused. the GSM g nex I used to have before used to last over 24 hours for me all the time no problem. If its the same phone. Why are the results so different. Its a huge difference. I find myself having to turn my phone off for a couple hours just so it can last thru my work day without dying on me.
Can it be the 3g that's making it drain so fast? What makes me believe this is when I am on 3g the top part of the back of the phone gets extremely hot. But when I'm on wifi. Its cooler than the other side of the pillow.
Sent from my Galaxy Nexus using XDA

Thread Moved
Please post all questions in Q&A
Thanks
FNM

Smokeey said:
Sounds about right. I usually get 6+ hours (heavy usage).
Stock 1750mah.
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Well there is your problem. You are using a 1750 battery when 1850 is stock for Verizon.

droidsrus said:
Yeah my battery drains super fast when only on 3g. Nothing else running. When i try to actually use it like my last phone the thing drains like crazy. Tried both cm and stock. And diff kernels. I let my battery die and charge it fully over 5 times already. Another thing I noticed. I went to bed with 93% I wake up 8 hrs later. And its drained half way. Mind u its not even being used. I'm confused. the GSM g nex I used to have before used to last over 24 hours for me all the time no problem. If its the same phone. Why are the results so different. Its a huge difference. I find myself having to turn my phone off for a couple hours just so it can last thru my work day without dying on me.
Can it be the 3g that's making it drain so fast? What makes me believe this is when I am on 3g the top part of the back of the phone gets extremely hot. But when I'm on wifi. Its cooler than the other side of the pillow.
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
No. It is something else on your device, or you have it on CDMA/LTE and it is straining for a signal.

adrynalyne said:
No. It is something else on your device, or you have it on CDMA/LTE and it is straining for a signal.
Click to expand...
Click to collapse
Hmm. That mustve been it. I just checked and it was in lte CDma but its funny because I changed it to cdma only before. But I guess it must be going to lte cdma by default every time I flash a new rom and I assumed it would stay in cdma by default. Thanks for reminding me about that. Completely forgot. New to Cdma been GSM for a long time. Hopefully I see a difference in battery life.
Sent from my Galaxy Nexus using XDA

Mine been draining quick but today probably did better ( still not great) but much better
I was walking in some trails the last hour so I had really bad signal too
Sent from my Galaxy Nexus using Tapatalk 2

<1hr on screen time and that kind of drain, unless you're in an area with no bars of any kind and it's constantly searching I would take that battery to the store and have them test it to make sure it's good.

paperhurts said:
<1hr on screen time and that kind of drain, unless you're in an area with no bars of any kind and it's constantly searching I would take that battery to the store and have them test it to make sure it's good.
Click to expand...
Click to collapse
O
Probably will thanks for the info. I been having worse battery life so that's actually better then before. But anyways I will go to sprint
Sent from my Galaxy Nexus using Tapatalk 2

Not impressed
Edit: it dropped another 5% as I posted this

If a post drains 5%, you have issues or need to type faster, by about an hour.

Or how about some heavy Temple Run play while on LTE in a fringe area that drops it a lot? Standard battery overclocked to 1.35ghz at standard voltage. No undervolting at all.

would you mind sharing rom/kernel set up

BAMF Paradigm, kernel and rom.
The repos are on IMM76I, but current release is on IMM76D.
IMM76I is just a kernel change for GSM users anyway.
The kernel is nothing special and has no battery saving qualities over stock though.

I'm getting better battery life now somehow
Sent from my Galaxy Nexus using Tapatalk 2

Post Battery Life Here

Just curious to see what everyones battery usage is like. I'll post mine tonight after my battery drains down
Sent from my SAMSUNG-SGH-I747 using xda premium

jdbeitz said:
Just curious to see what everyones battery usage is like. I'll post mine tonight after my battery drains down
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
I charged it up during the day yesterday, but then hammered it syncing my emails, sms messages and other things.
So, last night was my first real charge. I took it off the charger at 6am this morning, and right now, at just a few minutes less than 5 hours, I'm at 83% with 70% use being cell standby.
I'm sticking with HSPA+ today, because I know that will drain the battery more than WiFi (at least that was the case on my Atrix) and I'm trying to get a feel for the battery life when away from WiFi.
Now, full disclosure, my phone has 6 email accounts setup for push. An Exchange account, two Gmail accounts and three Imap idle accounts using k9 mail. Still, I would say it's burning battery at a little higher rate than my Atrix with those same six push email accounts.

5 hours and down to 40%.
:-(

I'm seeing a significant increase in battery life whith the s3 over the s2
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Sent from my SAMSUNG-SGH-I747 using xda premium

I'm a bit of a light user, but a little heavier than average given new phone.

7.5 hrs @ 57%.
I'll post screens when I can.

5 Hours, 45%, screen on 2 hr, 12 min.
Interesting thing: I have a Pandora Widget on my screen, have not used it at all, and 13% of my power, and show son for 22 min.

9.5 hrs @ 29%.
I am using the default juicedefender profile.

Cell standby hogs the battery more than other phones like US One X with same SoC. I think kernel devs can work on this since this is not normal.

To get a good idea on battery life, everyone needs to show their screen on time as it should be the biggest drain.
Sent from my HTC One X using Tapatalk 2

This is on power save mode.
Sent from my SAMSUNG-SGH-I747 using xda premium

^^ I had power saving off for the first 3 hours of the day, and screen was set to 1/4 brightness. I changed screen to auto brightness, disabled wifi network scanning/notification, turned on power saving mode (all options), and it's been like that since about 3 hours into the day. I've done some driving with Slacker Radio streaming via bluetooth to my Jeep.
Seems like cellular standby eats juice. I am in an LTE area.

is the a way to turn off LTE?

This is mine so far, don't really run any battery saving appsetc. Cell standby is a bit too much.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Heavy usage today including a 30 minute trip in the car using gps and lte im at 42% right now
Sent from my SAMSUNG-SGH-I747 using XDA

420SYN said:
is the a way to turn off LTE?
Click to expand...
Click to collapse
this.
op said he just ran on hspa+ so there must be a simple way to do it

jdhommert said:
this.
op said he just ran on hspa+ so there must be a simple way to do it
Click to expand...
Click to collapse
I haven't seen a way to switch. The person in question is probably in a market without LTE like I am and is stuck on HSPA+

so battery life is wayy better on the exynos...
Sent from my SAMSUNG-SGH-I717 using xda premium

I went to work yesterday at 4:30pm and showed people my phone all day as well as had the screen on the entire time for my lunch. Got home at 11:45pm and my battery was at 91%. This is on LTE the entire time also. My Nexus was usually at 60-70% by the time I got home.

Zacisblack said:
I went to work yesterday at 4:30pm and showed people my phone all day as well as had the screen on the entire time for my lunch. Got home at 11:45pm and my battery was at 91%. This is on LTE the entire time also. My Nexus was usually at 60-70% by the time I got home.
Click to expand...
Click to collapse
are you rooted? cause 91% left and you had it on for about 7 hours??? that's damn good. where you running any apps?

[Q] Slowly Decreasing Battery Life

I updated to 4.1.2 about 3 weeks ago or so. Not sure exactly. And the battery seemed to be just fine then. But slowly over these weeks, especially the last 4 days or so, it seems to be decreasing. I used to be able to go a whole day easy. And still have 45-50% left. And that would continue into the next day. Sometimes I would get 2 whole days and sitll have about 15% and then decide to charge it back.
Now, I can barely get a full day. And when I don't charge the phone at night, the battery charge decreases quite rapidly. Sometimes 15% or so with no usage at all overnight. It used to maybe move 3% at the most overnight with no usage.
My settings are the same. My usage is the same. I see time without signal is 2%. Nothing extremely high there.
Is this just one of the downside of 4.1.2 or is there something else happening that I'm not picking up on?
I didn't want this to really turn into what apps are out there to make the life better because I hate jumping through all those hoops and settings to get the most. I know this phone has the potential for 2 days of moderate use out the box because that is what I used to get. Seeing if I could get back to that state.
I was told to go into Wifi settings and change the setting not stay on while the phone is sleeping. Did not help at all. Per this video:
http://www.youtube.com/watch?v=mInF-ZRX5bs
Did that last night. Charged it 97% and went to sleep. Slept for 5 and a half hours. Did not touch the phone at all. Woke up and it's at 82% this morning. Here's the screenshot of the battery stats:
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Thanks.

Yup...update messed up my battery life also.
Sent from my SGH-T889 using xda app-developers app

droidjon said:
Yup...update messed up my battery life also.
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
Glad it's not just me then. Have you found anyway to make it a little better?

Well if you don't need to wanted at night, then what I do is put it in airplane mode and take off when waking up.
If you still get wake locks, check to see which ones they are off a wake lock app.
Also before I put into stand by, I exit all apps, also restart phone with airplane mode on. Doing this I haven't lost any battery life at all and seems to help throughout the day as well
Currently 60% right now and over 3 hours on-screen time and 16 hours.
Doing much better if I don't do what I have been doing.
Also make sure all GPS location settings are off. Huge battery drain for me.
Sent from my SGH-T889 using Tapatalk 2

JesseMT4G said:
Well if you don't need to wanted at night, then what I do is put it in airplane mode and take off when waking up.
If you still get wake locks, check to see which ones they are off a wake lock app.
Also before I put into stand by, I exit all apps, also restart phone with airplane mode on. Doing this I haven't lost any battery life at all and seems to help throughout the day as well
Currently 60% right now and over 3 hours on-screen time and 16 hours.
Doing much better if I don't do what I have been doing.
Also make sure all GPS location settings are off. Huge battery drain for me.
Sent from my SGH-T889 using Tapatalk 2
Click to expand...
Click to collapse
Yeah I know airplane mode will work but I receive texts late at night sometimes and those would not come through. Before this update, I never had a problem. I never had to make sure apps were closed and all this other stuff. It just never drained on me at all. When I first had the phone, I used to have to try very hard to drain the battery to zero so I could let the phone die and then get a full charge. The battery life used to be very great. Now, not so much.
And I have no idea why Slacker is being used like that. I haven't used that app in 3 weeks. And I don't see any settings that would cause it to being used in the background when I'm clearly not using it.
Yes I never have GPS on until I need it for navigation purposes. I'm hoping Key Lime Pie fixes this or we get another minor update before that.

barats said:
Yeah I know airplane mode will work but I receive texts late at night sometimes and those would not come through. Before this update, I never had a problem. I never had to make sure apps were closed and all this other stuff. It just never drained on me at all. When I first had the phone, I used to have to try very hard to drain the battery to zero so I could let the phone die and then get a full charge. The battery life used to be very great. Now, not so much.
And I have no idea why Slacker is being used like that. I haven't used that app in 3 weeks. And I don't see any settings that would cause it to being used in the background when I'm clearly not using it.
Yes I never have GPS on until I need it for navigation purposes. I'm hoping Key Lime Pie fixes this or we get another minor update before that.
Click to expand...
Click to collapse
You should never discharge your phone to anywhere close to dead. It ruins your battery
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

Do you have lte on? Are you in an lte area? Have you tried a factory reset?
My battery life was horrible when j first upgraded. Seeing as i am not with T-Mobile i do not get lte. I turned my lte off and my battery went back to normal.
A factory reset may also clear any gremlins that you may have left over frlm the update
Sent from my SGH-T889 using xda premium

Same here owned it since december...great battery and after update it went down the drain (especially losing 15-20% overnight with just about everything turned off. I would usually let it get down to 10-15% and then charge. Well eventually my phone would only charge "when it wanted too" so I got a replacement, updated to 4.1.2 and battery lifes has been great.
As far as not doing full cycles or not...ive looked and looked and everyone says diff. Some experts argue it's good to let ot drain till about 5% and then charge And other experts say charge often and not let it below x percentage. Soooo confused on the topic, so in the end to each their own I guess lol
Sent from my SGH-T889 using xda app-developers app

[Q] Odd N5110 Battery Drain :(

Hi all
My N5110 has an odd battery drain.
Normal Internet browsing with the odd YouTube vid can see the battery drop from full to 1% in as little as 2.5hrs.
The strange thing is that it will then run at 1% for a few hours before dying (with the screen dimmed due to auto power saver).
I am running civz rooted rom but have tried several different stock and custom roms, all of which have the same issue.
Anyone have any ideas?
Thanks in advance
Sent from my GT-I9505 using Tapatalk

Anyone?
Sent from my GT-I9505 using Tapatalk

4ndynic said:
Anyone?
Sent from my GT-I9505 using Tapatalk
Click to expand...
Click to collapse
what are your kernel settings and civ's rom version you have?...
internet dains battery very fast... so keep in mind playing hd videos using internet will drain battery very fast....

Thanks for the reply mate
Doesnt explain why it's running for hours at 1% tho, guessing the battery stats have screwed up somewhere along the line but then surely they are over written by a rom flash!?
Sent from my GT-I9505 using Tapatalk

Current version
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Sent from my GT-I9505 using Tapatalk

4ndynic said:
Current version
Sent from my GT-I9505 using Tapatalk
Click to expand...
Click to collapse
ok, and N5110 kernel and rom settings?

Lol, try this one!
Sent from my GT-N5110 using Tapatalk

4ndynic said:
Lol, try this one!
Sent from my GT-N5110 using Tapatalk
Click to expand...
Click to collapse
ok,
can you explain with details how do you use your note 8 (from 100% to 1% battery), i mean what applications you use, in youtube (hd content, 1 hour length or 2, etc)
besides that, how do you install the rom?... FULL wipe (erasing internal SD card from recovery and clear cache)??

Hello.
I have one N5110 stock. After upgrading from 4.1.2 to 4.2.2, I have the same exact behaviour... very fast battery drain. On standby the Note8 uses very little battery. With the screen on browsing internet it does not get to 2 hours screen time without going below 5% and entering power save mode. Then I can still browse internet for more than a hour with the dimmed screen.... very odd. Seems like it's not callibrated or something...
If I start playing games like RealRacing3 I can depleat the hole battery in less than 30min. With the 4.1.2 version it used to last more than 2 hours playing the same game.
I'm thinking on returning the device under warranty.

diogoquintao said:
Hello.
I have one N5110 stock. After upgrading from 4.1.2 to 4.2.2, I have the same exact behaviour... very fast battery drain. On standby the Note8 uses very little battery. With the screen on browsing internet it does not get to 2 hours screen time without going below 5% and entering power save mode. Then I can still browse internet for more than a hour with the dimmed screen.... very odd. Seems like it's not callibrated or something...
If I start playing games like RealRacing3 I can depleat the hole battery in less than 30min. With the 4.1.2 version it used to last more than 2 hours playing the same game.
I'm thinking on returning the device under warranty.
Click to expand...
Click to collapse
The biggest issue that causes battery drain is Google Music Player... Once you go from 4.1.2 to 4.2.2. You can disable it in application settings.
ANother issue is DVFS... If rooted, you can run xposed framework and Wanam Xposed.

Opened my note 8 and disconnected the battery for 1 hour... the battery shower 1% when i did it. After reassembling the battery and back cover battery indicated 73%. Now discharging speed is back to normal...
Enviado do meu GT-N5110 através de Tapatalk

diogoquintao said:
Opened my note 8 and disconnected the battery for 1 hour... the battery shower 1% when i did it. After reassembling the battery and back cover battery indicated 73%. Now discharging speed is back to normal...
Enviado do meu GT-N5110 através de Tapatalk
Click to expand...
Click to collapse
Disabling DVFS will do the same, but will require rooting, which is safer than opening and disconnecting things.

Can you please explain what is dvfs? How do I do that?
Thanks
Sent from my HIGHWAY using Tapatalk

diogoquintao said:
Can you please explain what is dvfs? How do I do that?
Thanks
Sent from my HIGHWAY using Tapatalk
Click to expand...
Click to collapse
Well, one will need to root their device... I recommend saferoot on 4.2.2 and earlier, or CF Auto Root for 4.4.2.
Once you root, you can use xposed framework and install either Wanam DVFS for a fast and easy option or get the Wanam Xposed module and enjoy even more options.
DVFS is Dynamic Voltage File System... Samsung developed it, and it seems to be a problem with battery charge rate. There are two issues one that is how Android reads battery data. For example, if you plug in your device to charge it will estimate from polled data. So it is not as accurate as a laptop or cell phone. Becuase is uses a data base, anything can cause an issue with how the battery is being charged. With DVFS active in Touchwiz, it causes the battery polling to go out of cycle and looses perspective when charging and discharging.
I have tested and found that if DVFS is left enabled, you can get a very slow charge or a very fast drain according to how the battery polling database is out of sync.
If Android used hardware polling from the battery's smart interface, DVFS would not be an issue, and would work as designed. Since there are a few apps that kill the database and makes it start from scratch, you may find the problem reoccurring and must keep the app installed. I rather just disable DVFS and not deal with such battery optimizer apps that really don't optimize.

diogoquintao said:
Hello.
I have one N5110 stock. After upgrading from 4.1.2 to 4.2.2, I have the same exact behaviour... very fast battery drain. On standby the Note8 uses very little battery. With the screen on browsing internet it does not get to 2 hours screen time without going below 5% and entering power save mode. Then I can still browse internet for more than a hour with the dimmed screen.... very odd. Seems like it's not callibrated or something...
If I start playing games like RealRacing3 I can depleat the hole battery in less than 30min. With the 4.1.2 version it used to last more than 2 hours playing the same game.
I'm thinking on returning the device under warranty.
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this is the exact issue i am having. just in the process of sending it back to samsung though, as its only 6 months old...
is battery drain still back to normal after you removed the battery?

It's good until now after I unplugged the battery.
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