Note 3 battery drops quickly (needs recalibration) - Galaxy Note 3 Q&A, Help & Troubleshooting

Wherever I charge my Note 3 fully, even if I leave it on for extra 30 mins, unplug charger and reboot the phone, phone comes on to 98%. Even when I charge full and just unplug, it drains to 98% on idle in 20 to 30 mins. Whenever it gets to 98% then it stops draining. I believe I need to recalibrate?
I have tried everything I can but to no avail! Every good re calibration app with super reviews! Still nothing! Even Manual recalibration and FULL WIPE (Including Internal SD), tried total drain to 0% and switched off itself too.
Need suggestions. Cheers!

the battery will charge to 100% then turn off and allow the device to go down to about 95% before recharging back up. It stops you from overcharging your battery and destroying it, there is no drama with your battery from what you describe mine does exactly the same thing on both devices I have had

joshndroid said:
the battery will charge to 100% then turn off and allow the device to go down to about 95% before recharging back up. It stops you from overcharging your battery and destroying it, there is no drama with your battery from what you describe mine does exactly the same thing on both devices I have had
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I understand u very well, but it just seems off! Because going down to 98% without even 'touching' the phone, NO WAKELOCKS, nothing serious enough at least... And it wasn't always this way. Just started about a month ago or so. My S2, S3, and S4 never did like so... But thanks for your time bro!

Nothing to worry. It's all ok man.
Sent from my SM-N900 using Tapatalk

Even mine does the same, not sure though why.
Sent from my SM-N900 using Tapatalk

deadlyheart4u said:
Nothing to worry. It's all ok man.
Sent from my SM-N900 using Tapatalk
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sachingopalkrishnan said:
Even mine does the same, not sure though why.
Sent from my SM-N900 using Tapatalk
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Thank you bhai! But, do you think it's MJ7 firmware? Battery is not as good as MI2, and earlier. And can you we flash MJ6 over MJ7? Since both have the new bootloader, it should work fine yes?

Mine does the same! 98% limit.
I get 10hrs usage before recharging again. :good:

Stop being so anal - . Battery will drop slightly, mine does it, as do many others in this thread. 100% to 98% is nothing. It's usually after 90% that you start to see the real battery life anyway.

radicalisto said:
Stop being so anal - . Battery will drop slightly, mine does it, as do many others in this thread. 100% to 98% is nothing. It's usually after 90% that you start to see the real battery life anyway.
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Thats a Rude comment!!
Respect everyone, if you think you know all the answers then you should not be here!!
He asked about his battery % and we try to explain....stop dirty words in forums!!

deom2i said:
Thats a Rude comment!!
Respect everyone, if you think you know all the answers then you should not be here!!
He asked about his battery % and we try to explain....stop dirty words in forums!!
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Do you understand words have more than one meaning? - In this instance you "seem" to think that the term anal is used in a sexual context. Whether it's a miscomunication in language/Lost in translation or you are just too stupid/naive to realise.. I do not know. - So think before you start crying in a thread next time. A word you may say in your country may offend many here also -
-- As for the battery percentage question, I gave an answer for that, so stop being anal about it.

What you said is same as saying dont be an a**hole!! And second dont refer other people as being stupid/native just because you know 1 or 2 things!
About the battery % it isnt a problem. Its normal system fuction it happens to everyone including me. And I get 10hrs of use with single charge.
What didnt u understand, mr.Smart?!!
Sent from my SM-N900 using Tapatalk

radicalisto said:
Do you understand words have more than one meaning? - In this instance you "seem" to think that the term anal is used in a sexual conext. Whether it's a miscomunication in language/Lost in translation or you are just too stupid/naive to realise.. I do not know. - So think before you start crying in a thread next time. A word you may say in your country may offend many here also -
-- As for the battery percentage question, I gave an answer for that, so stop being anal about it.
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Well, if there was any misunderstanding in your previous post this one cleared everything up. lol
Well played sir.

deom2i said:
What you said is same as saying dont be an a**hole!! And second dont refer other people as being stupid/native just because you know 1 or 2 things!
About the battery % it isnt a problem. Its normal system fuction it happens to everyone including me. And I get 10hrs of use with single charge.
What didnt u understand, mr.Smart?!!
Sent from my SM-N900 using Tapatalk
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Calling someone anal does not constitute the same as saying someone as you put it "an a**hole!!" - I never called you stupid or "native" (Naive is what I said) I merely stated I didn't know if you were either of these you implied otherwise... I never claimed to know anything, So your point is moot. (Google it if you're stuck)
for the record ---
Noun
1.
anal personality - (psychoanalysis) a personality characterized by meticulous neatness and suspicion and reserve; said to be formed in early childhood by fixation during the anal stage of development (usually as a consequence of toilet training)
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Now do me a favour and give up, Cause you're boring me.
-- Again with the battery situation, it's perfectly normal, It seems this subject has been hijacked by someone who has obviously got lost in translation and has disctracted the thread.
Stay away from Battery calibration Apps, they can play havoc with your phone also, at first they work but they always have a tendancy to mess up at some point.
Unless your battery is draining at a crazy speed I wouldn't worry too much. - You should be getting about 15-20 hours with an average of 3-4hrs screen time out of the devce with moderate use.

Sorry i mean stupid/naive not native.
Mate, there is no need for all these...
If im boring dont reply.
Next time try to explain without putting anyword to show or trying to make people feel stupid. This is my point.
We arent in english gLass and the thread is worldwide, just get to the point and move on.
Just that.
My battery is okay...I get 10hr of heavy use. 3g and bluetooth always on. My s3 had only 6hrs of heavy usage.
I dont complain of battery draining is normal for my usage.
Im also checking the wakelocks and batt consumption at night. Still in progress.
Sent from my SM-N900 using Tapatalk

So moving on, you get a solid 10 hours with heavy use currently? - how is your consumption at night? - mine drops about 5% over a period of about 7-8 hrs roughly.
I average around 25 hrs currently with moderate use and WiFi on all the time
Sent from my SM-N9005 using XDA Premium 4 mobile app

My Note 3 also drops from 100% to 98% very quickly even with no use of the phone.It also seems to drop to the low 90% range very quickly but then it settles down and battery life is excellent.Surfing the web seems to use more power than watching videos.I lose about 3 to 4% overnight.

I noticed my battery discharge faster after upgrading to latest MJ7 firmware. Before the update, my battery lasted very long. Hopefully samsung release a small update fix on this battery bug.
Sent from my SM-N9005 using xda app-developers app

Related

I'm just gonna say...(Batt issues)

Before I was a behavioral therapist I worked for a small (lol) company called Applied Materials. And there I worked as a project manager. And what I learned there was the importance of following procedure, something most here seem to fail doing. I know I'm not the only one tired of seeing at least 2-3 threads a day pop up complaining how adryns or blah blahs rom is giving you horrible battery life. Have you stopped and thought for a second that it may have something to do on your part? Let me rephrase that, it is something to do with you. There are procedures before flashing...for example, flashing on a full charge is ALWAYS recommended. Second, wipe wipe and wipe again. I hope you don't wipe your ass the same way you do your phone. You stop to think for a second that flashing two themes a day isn't going to f things up with your battery if you're not following proper protocol? Why is it some people don't have issues and some do? It's simple, you f'd it up.
And for the record, the reason I posted this is to stress the importance of following the rules, bc when there really is an issue, it's like "the boy who cried wolf". We don't know which is legit and the other is just some kid too hyped to get that blackhole or superclean and cuts corners.
This thread drained my battery real bad.
Sent from my SCH-I500 using XDA App
It could just be the fact that the Fascinate gets crap battery life in general. I get crappy battery life no matter what. Thanks for the useless post tho. Hopefully mine is just as wothless.
mob87 said:
It could just be the fact that the Fascinate gets crap battery life in general. I get crappy battery life no matter what. Thanks for the useless post tho. Hopefully mine is just as wothless.
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The fascinate is proven to get better battery life then the droid amoung many other androids. I get maybe 16 hours of heavy use. I've been on this forum all day running superclean 2.1 with voodoo and still have 37% left...yeah that's some ****ty battery life for ya lol
Edit: maybe the majority of us getting around 15+ hours are just on some really good dope.
Droid? Which droid? Certainly not the Droid X, I had one and battery life was way better. I dont know anybody that gets more than 10 hours on heavy use. Sure you can get more if you dont actually use your phone as a phone.
mob87 said:
Droid? Which droid? Certainly not the Droid X, I had one and battery life was way better. I dont know anybody that gets more than 10 hours on heavy use. Sure you can get more if you dont actually use your phone as a phone.
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Lmfao...really? Then why is my cousin who has an x charging his phone while im sitting here on his couch still posting. Before you post again take a peek...i've been trollon this forum for 12 hours now.
I followed everything to a T the second time around. My first time flashing superclean I was getting less than stellar battery life. Second time around I wiped data, cache, dalvik, and battery stats multiple times while on a full charge.
I've had my phone off the charger for 13 hours now and I am at ~60%. I haven't used it as heavy as normal, but even under heavy load I am getting much better battery than my first time around.
In "16 hours of heavy use", how much of that time was your screen active? You can look in Settings -> About -> Battery Use -> Display. "Heavy use" is a fairly imprecise term, since what one person might consider heavy use might be 'fairly light' to another.
KitsuneKnight said:
In "16 hours of heavy use", how much of that time was your screen active? You can look in Settings -> About -> Battery Use -> Display. "Heavy use" is a fairly imprecise term, since what one person might consider heavy use might be 'fairly light' to another.
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74%...just take a peek in the threads...i've been posting maybe ince every 15 min
khanable said:
I followed everything to a T the second time around. My first time flashing superclean I was getting less than stellar battery life. Second time around I wiped data, cache, dalvik, and battery stats multiple times while on a full charge.
I've had my phone off the charger for 13 hours now and I am at ~60%. I haven't used it as heavy as normal, but even under heavy load I am getting much better battery than my first time around.
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My point exactly...thanks for pointing it out.
jenisiz said:
I hope you don't wipe your ass the same way you do your phone.
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All right, I have to admit, that right there is pretty funny!
I agree with your post, thought. Every time a new rom is released, the next several days are filled with complaints about the battery life. If you follow the procedure for resyncing the battery stats, your battery life will be back.
mob87 said:
It could just be the fact that the Fascinate gets crap battery life in general. I get crappy battery life no matter what. Thanks for the useless post tho. Hopefully mine is just as wothless.
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I get good battery life...so this isn't a fact for me.
The most important thing to keep in mind is battery life is SUBJECTIVE, as are the terms used to define usage (including "good" and "crap" as in the above). What one person considers "light/medium" use might be "heavy" use for someone else, and vice versa.
Sent from my SCH-I500 using XDA App
For me battery life on eb01 is great as long as gps isn't enabled in the pull down shade. When that is on the phone doesn't sleep even if gps is never showing active in the status bar.
Sent from my SCH-I500 using XDA App
nmyeti said:
For me battery life on eb01 is great as long as gps isn't enabled in the pull down shade. When that is on the phone doesn't sleep even if gps is never showing active in the status bar.
Sent from my SCH-I500 using XDA App
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I too have GPS disabled in the pull down
khanable said:
I too have GPS disabled in the pull down
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X3...imho, it's an irrelevant feature to have on at all times unless you actually need it.
Eb01 battery life is sub par - mostly to with the fact we do not have custom kernels yet. Wait for those and well see the battery life that spoiled us again.
Sent from my SCH-I500 using XDA App
jenisiz said:
74%...just take a peek in the threads...i've been posting maybe ince every 15 min
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Not percentage, but time.
My Fascinate, currently, has been unplugged for 22 hours. Light/medium/heavy use is all completely and totally relative and opinionated terms. The amount of 'Time on' for the screen is a fair bit better way to show the use than just the meaningless 'heavy' & friends terms *. I've had my screen on for 55 minutes total, during those 22 hours, and am down to 42% battery life remaining. I wouldn't call the use I'd done 'heavy use', but someone else might consider that about as much use as they've given their phone in a WEEK!
I find my battery life is decent, but by no means amazing (I generally always make it through a day, 2 with light usage).
* Even then, it's a fair bit different if the time was spent looking at a single active pixel on the screen, vs playing with an augmented reality app that keeps the GPS, camera+flash, and wifi/3G constantly going, while also burning huge amounts of cycles on both the GPU and CPU... but one step at a time.
jenisiz said:
I hope you don't wipe your ass the same way you do your phone. Why is it some people don't have issues and some do? It's simple, you f'd it up.
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Okay, I've been flashing my ass all day long and not one person has mentioned seeing a wipe button appear, so I don't see how anyone can wipe their ass the same as their phone.
Sent from my SCH-I500 while waiting in prison for my court date for flashing in public. ..Hope this ROM doesn't kill my battery like the last one did.
Bawb3 said:
Eb01 battery life is sub par - mostly to with the fact we do not have custom kernels yet. Wait for those and well see the battery life that spoiled us again.
Sent from my SCH-I500 using XDA App
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In my case it's mostly due to the fact that the phone never sleeps if GPS is enabled. When the phone doesn't sleep, it eats battery at an alarming rate even just sitting in your pocket. Once GPS is disabled in the notification shade, battery life is more in line with DL09. I'll be happy once we get some custom kernels, as a LV kernel seems to help my device a bit, but battery life isn't so bad anymore as to cause me to flash back to DL09.

Some KB5 Tweaks I've Noticed

-MUCH improved battery life..55% left with about 23 hours after unplugging..wifi was on and played a good amount of angry birds (light to moderate use otherwise)
-brought back notification bar brightness adjustment thingy
-charges MUCH faster as well
-wifi doesn't crash
-no noticeable performance changes
-media scanning seems to be faster
Might edit this post later...just a little info for those updating.. :|
Sent from my SGH-T959 using XDA App
-MUCH improved battery life..55% left with about 23 hours after unplugging..wifi was on and played a good amount of angry birds
your just turning your phone on to check time or something, thats just not possible.
I can get 15 hours max, i've gotten 20 but with the minimalest use ever.
I have no data plan, so i use wifi all the time, and even with that, i dont get that kind of battery life, your just ****ing with me bud.
I'm not...serious about that.results may vary anyway. My brightness wasn't really too high. I would have
Capped, but I'm not rooted and my camera is pretty bad.
EDIT: light to moderate use otherwise
Sent from my SGH-T959 using XDA App
laylovj said:
I'm not...serious about that.results may vary anyway. My brightness wasn't really too high. I would have
Capped, but I'm not rooted and my camera is pretty bad.
EDIT: light to moderate use otherwise
Sent from my SGH-T959 using XDA App
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NO NO NO NO.
Results may vary, but not by 6+ hours.
My brightness is always at either 0% or 15%
Camera being bad has nothing to do with battery life.
Rooting doesn't either.
Light to moderate? no.
VERY light? yes.
i'm sorry if i sound rude, but i just hate it when people OVER- say what they actually want to say.
23 hours and 55% left is just dumb. That would mean that you'd get 2 days worth of battery.
Either your battery's filled with magical unicorns that auto-refill your charges, or your lying.
^^^^^Riiiiiight.
I get 30 hours of use easy--I'm on it all the time.
xriderx66 said:
-MUCH improved battery life..55% left with about 23 hours after unplugging..wifi was on and played a good amount of angry birds
your just turning your phone on to check time or something, thats just not possible.
I can get 15 hours max, i've gotten 20 but with the minimalest use ever.
I have no data plan, so i use wifi all the time, and even with that, i dont get that kind of battery life, your just ****ing with me bud.
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You can get 24+ hours just on overstock + trigger.
Beleive it or not, once when I left to work, I had 9% battery and I was like !!, so i turned off wifi, data, sync. and sed phone just to check for msgs etc and maybe 1 call.
When I got back home after ~9 hrs, I had 5% battery and I was pretty amazed. True story, take it or leave it.
I m on KB1 and right now 17hours on %52. So it is possible but it all depends on the usage.
Sent from my SGH-T959 using XDA App
@rider It's cool..I'm just going by what my phone does.. :/
Sent from my SGH-T959 using XDA App
xriderx66 said:
NO NO NO NO.
Results may vary, but not by 6+ hours.
My brightness is always at either 0% or 15%
Camera being bad has nothing to do with battery life.
Rooting doesn't either.
Light to moderate? no.
VERY light? yes.
i'm sorry if i sound rude, but i just hate it when people OVER- say what they actually want to say.
23 hours and 55% left is just dumb. That would mean that you'd get 2 days worth of battery.
Either your battery's filled with magical unicorns that auto-refill your charges, or your lying.
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Yet another troll post by this guy.
phrozenflame said:
You can get 24+ hours just on overstock + trigger.
Beleive it or not, once when I left to work, I had 9% battery and I was like !!, so i turned off wifi, data, sync. and sed phone just to check for msgs etc and maybe 1 call.
When I got back home after ~9 hrs, I had 5% battery and I was pretty amazed. True story, take it or leave it.
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Click to collapse
I believe it, i never said its impossible to get 20+ hours of battery life, i've gotten there too.
but the OP has gone through 23 hours and has 55% remaining.
thats ****ing insane.
Yeah I thought it was insane too.. didn't think it was possible either.
Sent from my SGH-T959 using XDA App
xriderx66 said:
I believe it, i never said its impossible to get 20+ hours of battery life, i've gotten there too.
but the OP has gone through 23 hours and has 55% remaining.
thats ****ing insane.
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The problem with people posting their drain times is that light use for you and me might be considered heavy use by the OP. With that said, if you properly want to tell people how good your battery is, post your screen on time. At least that gives an idea as to how good your battery is in comparison to something we can also measure.
Sent from my SGH-T959 using XDA App
vinnydakid said:
The problem with people posting their drain times is that light use for you and me might be considered heavy use by the OP. With that said, if you properly want to tell people how good your battery is, post your screen on time. At least that gives an idea as to how good your battery is in comparison to something we can also measure.
Sent from my SGH-T959 using XDA App
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the DEFAULT settings for battery usage is the most inaccurate.
Use another app from the market, that shows like a line graph of when you charged etc.
I have MIUI, so i know my battery life is horrible.
What other improvements...
Other than battery life what other improvements did this update bring. When I updated my wife's phone to 2.2 she said it was crap. Visual voice mail did not work properly which was a big deal to her.
Did this update have any other improvements?
Well not really other than the OP. No real overall performance changes. Just about as fast or slow as froyo depending on what you think about it.
Sent from my SGH-T959 using XDA App
phrozenflame said:
You can get 24+ hours just on overstock + trigger.
Beleive it or not, once when I left to work, I had 9% battery and I was like !!, so i turned off wifi, data, sync. and sed phone just to check for msgs etc and maybe 1 call.
When I got back home after ~9 hrs, I had 5% battery and I was pretty amazed. True story, take it or leave it.
Click to expand...
Click to collapse
If you literally do nothing on it (other than leave it on), a fairly new battery will drain slower than that. Mine will last a couple days if all I do is turn the screen on to check the time.
After I put 2.2 on my phone I noticed that vvm kept running in the background and was draining the battery. Was this fixed?
Sent from my SGH-T959 using XDA App
Is avatar not playing for anyone else? I fixed it for stock KA6 by deleting a file/symlink. Now with KB5 it will not play. How can I fix it again? Thanks.
Sent from my SGH-T959 using XDA App
xriderx66 said:
I believe it, i never said its impossible to get 20+ hours of battery life, i've gotten there too.
but the OP has gone through 23 hours and has 55% remaining.
thats ****ing insane.
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Click to collapse
I have to concur with the posting, I forgot to plug in my phone yesterday so when I got up this morning it had been 27 hours since I last plugged in and I was at 56% left according to my battery widget running Bi-Winning with overstock version1.4, I got to say this much improved battery life surprised me. i do not have my screen @ 45% I run @ 60% bright
I get faster data transfer as well. So this is all good...... Too bad Samsung took 8 Months to figure out how to code a decent modem......
Sdobron said:
Yet another troll post by this guy.
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+1 kid needs some manners..
Sent from my SGH-T959 using XDA App

Battery Calibration?

I am kind of amazed with what I am seeing, and am wondering if someone on XDA can help me understand this. So I was running CM7.x on my MT4G for over an year, and this past weekend I switched to CoreDroid because I wanted to try out Sense.
I had a bad feeling about the battery usage because the ROM was "heavier" than CM7.x in terms of UI, Graphics (of course because of Sense 3.5). I went ahead and installed the ROM anyways.
Within a couple of hours, I went from being fully charged to 5% battery....it was draining faster than anything I have seen before. I read CoreDroid release notes and they had mentioned about this severely fast battery drain.
Based on their recommendation, I fully charged the phone once battery level reached 5%. This time, my battery lasted about 17-18 hours, and again I fully charged it when it reached 5%.
Now after the second recharge, its been about 24 hours and I am at 97% battery. I didn't believe CoreDroid release notes that battery life will become better after couple of recharges; I thought it was a bunch of bull to get people to install their ROM.
I am glad to say I was wrong Can someone please explain this battery calibration deal to me?
Oh boy... This is a highly controversial topic. Here we go.
Basically there are people who swear by it and people who say it does nothing. That its all in your head.
Even this lady at google who helped create Android says it does nothing.
https://plus.google.com/105051985738280261832/posts/FV3LVtdVxPT
Sent from my HTC Glacier using XDA App
estallings15 said:
Oh boy... This is a highly controversial topic. Here we go.
Basically there are people who swear by it and people who say it does nothing. That its all in your head.
Even this lady at google who helped create Android says it does nothing.
https://plus.google.com/105051985738280261832/posts/FV3LVtdVxPT
Sent from my HTC Glacier using XDA App
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Best link ever; most informative.
- I think everyone loves Dianne now.
- Someone has a flying car already ...
- In the middle of the most intellectual and technical discussion of battery usage that I have seen, someone asks what is the best facebook app - brilliant!
So...
1. Battery stats are calculated differently per phone and OS version.
2. Battery stats reporting is definitely not %100 accurate.
3. Battery percentage is calculated differently per phone and OS version.
4. Battery percentage reporting is definitely not %100 accurate.
5. On some phones, you can override battery charging limitations by 'bumping'.
6. 'Bumping' is not recommended as can shorten your battery life.
They actually did not cover the OP situation where you let that battery go below 5%, although I am always guilty of skim reading. Still, extremely informative and explains a lot of previously posted battery phenomena.
estallings15 said:
Oh boy... This is a highly controversial topic. Here we go.
Basically there are people who swear by it and people who say it does nothing. That its all in your head.
Even this lady at google who helped create Android says it does nothing.
Sent from my HTC Glacier using XDA App
Click to expand...
Click to collapse
Wow, that made up for intense reading - thanks a lot.
It can't be something in my head for sure, If the difference was say a couple of hours I probably would have agreed with "the lady at Google" But I went from 2-3 hours to 24+ hours, so yes it's not in my head
Thanks again for your feedback.
Homerbsharp said:
Best link ever; most informative.
- I think everyone loves Dianne now.
- Someone has a flying car already ...
- In the middle of the most intellectual and technical discussion of battery usage that I have seen, someone asks what is the best facebook app - brilliant!
So...
1. Battery stats are calculated differently per phone and OS version.
2. Battery stats reporting is definitely not %100 accurate.
3. Battery percentage is calculated differently per phone and OS version.
4. Battery percentage reporting is definitely not %100 accurate.
5. On some phones, you can override battery charging limitations by 'bumping'.
6. 'Bumping' is not recommended as can shorten your battery life.
They actually did not cover the OP situation where you let that battery go below 5%, although I am always guilty of skim reading. Still, extremely informative and explains a lot of previously posted battery phenomena.
Click to expand...
Click to collapse
Lol....yea that FB app question was pretty brilliant I'll try to get in touch with CoreDroid folks, and see if they can answer my question.
I mean it does work, it's almost like a miracle to me.
I know. I just can't figure out WHY. Its been really bothering me.
Sent from my HTC Glacier using XDA App
Jessooca said:
Which battery calibration app are you using?
Sent from my HTC Glacier using xda premium
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Click to collapse
None, I am just surprised to see improved battery life after couple of 'full-drain, full-charge" operations.
BTW, care to suggest a good battery calibration app? Much appreciated.
well, the best battery calibration app Ive used is Battery Calibration by NeMa, but now after reading this thread it seems that they dont really do anything
ajrulez said:
None, I am just surprised to see improved battery life after couple of 'full-drain, full-charge" operations.
BTW, care to suggest a good battery calibration app? Much appreciated.
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Click to collapse
The drain-charge cycles is just a way to calibrate the battery- takes more time to "forget" the old stats, so people either use an app or manually delete the battery statistics so one can start accumulating fresh statistics.
After a few days you get your statistics right, from then on the battery indicator will be more or less accurate.
Battery drainage has nothing to do, really, with how many times you'll calibrate or drain/ charge or whatever. It has to do with how much you use screen on, Wifi, BT, gps, partial wakelocks, apps syncing etc. In other words- use your phone and be assured battery is going to drain. Leave it alone, let it sleep- battery will last a couple of days...
Sent from my HTC Glacier using Xparent Cyan Tapatalk
just to clarify, and sorry for butting in, but there is no such thing as "calibrating your battery"... this has been debunked by many people who understand android's Linux kernel and even an android engineer at Google.
the batterystats.bin file is simply that, a bin. it does nothing more than collect dumped statistics of what exactly has been using your battery, how long, how much power those processes used, etc. it has absolutely nothing to do with your phone's ability to display correct information about how much juice you have left - that function is within the Linux kernel which monitors, and controls power throughout the device.
ask yourself this... ever flashed a ROM with say 50% power left on a charge? what happens after your first boot? does your phone suddenly have no idea how much charge is left? no. it doesn't. because the new kernel you just flashed with your ROM is picking up right where you left off.
wiping battery stats is useless. period. it.does absolutely nothing to better battery life. that is fact. that is your phone. that is your Linux platform and straight truth in how it works.
and since it is stored in the data directory, every time you flash a ROM and wipe data, you are wiping the battery stats... so why do you boot up and do it again... I know... good question.
Sent from EVO 3D using XDA premium
aznprodgy said:
well, the best battery calibration app Ive used is , but now after reading this thread it seems that they dont really do anything
Click to expand...
Click to collapse
Hehe, yes I doubt if these battery calibration do anything.
estallings15 posted a very informative link in 2nd or 3rd post (of this thread)....all these battery calibration apps simply delete the battery stats file at least thats what one from NeMA does anyways
cobraboy85 said:
just to clarify, and sorry for butting in, but there is no such thing as "calibrating your battery"... this has been debunked by many people who understand android's Linux kernel and even an android engineer at Google.
the batterystats.bin file is simply that, a bin. it does nothing more than collect dumped statistics of what exactly has been using your battery, how long, how much power those processes used, etc. it has absolutely nothing to do with your phone's ability to display correct information about how much juice you have left - that function is within the Linux kernel which monitors, and controls power throughout the device.
ask yourself this... ever flashed a ROM with say 50% power left on a charge? what happens after your first boot? does your phone suddenly have no idea how much charge is left? no. it doesn't. because the new kernel you just flashed with your ROM is picking up right where you left off.
wiping battery stats is useless. period. it.does absolutely nothing to better battery life. that is fact. that is your phone. that is your Linux platform and straight truth in how it works.
and since it is stored in the data directory, every time you flash a ROM and wipe data, you are wiping the battery stats... so why do you boot up and do it again... I know... good question.
Sent from EVO 3D using XDA premium
Click to expand...
Click to collapse
Yep, agree with your comments 100%. After reading the link posted by estallings15 earlier in this thread, the myth of battery calibration was busted
I agree with most that Battery Calibration is a joke, and doesn't mean anything. However, batteries in many devices (not just our Cell Phones) seem to benefit from proper discharge/full charge cycles. In fact, it's usually recommended in things like electric RC cars that you completely run down the battery as far as you can go (realistically of course!) prior to charging; also to prolong battery life. I always notice at least slightly longer use times if I don't always pop the thing on a charger at 75%. But go with what works for ya, and of course some roms DO drain faster than others. And less screen haha

n00b here, need help with battery issues

Hi there; this is my first post so please go easy on me.
Bought a Nexus 4 which is my first Android device, but the battery life is bugging the hell out of me. Surely the screen should always be at the top, right? I left it to sleep overnight on a full charge to find that it had shot down to 60% when I woke up at 7 this morning.
I haven't rooted or flashed or anything like that, because as I said, I'm an Android virgin. I have location settings off, only Gmail syncing and the usual push notifications here and there. Nothing too fancy or strenuous.
Any help on how I can go around fixing this? I'm a little afraid to rooting/flashing/ROMs etc, because I've no clue what works best.
Cheers!
If your saying you left the screen on over night, meaning the phone never went into deep sleep.. If you slept for let's say 6 hours and the phones screen was on for that whole time it's normal that it went down to sixty percent battery.
Maybe I'm understanding your post wrong? Btw I cannot see the picture you posted.
Sent from my SGH-T999 using xda app-developers app
Turn off mobile data and lower the screen brightness to 0 during the day. Also disable WiFi when you're sleeping. I also make sure all apps are closed using the app manager button on the far right.
Mine's been fine following this logic.
Oh sorry, I should meant sleeping overnight, whilst I slept cosily in my bed.
I'll reattach the image in a second
Ah, you won't be able to see any links till I've gone past 10 posts. Back in a bit then, ha.
atw1927 said:
Ah, you won't be able to see any links till I've gone past 10 posts. Back in a bit then, ha.
Click to expand...
Click to collapse
lol I see it now.. try performing a reset, android shouldn't be that high.. are you rooted? custom rom/kernel?
Crisisx1 said:
lol I see it now.. try performing a reset, android shouldn't be that high.. are you rooted? custom rom/kernel?
Click to expand...
Click to collapse
This is NOT the answer. His battery in the image has dropped 7%. If he hasn't used the screen much it is perfectly understandable that screen might not be a large percentage of that 7%. As he uses the phone more screen will use a larger percentage of his battery and Android OS will use less.
If he gets to the point where the screen is on for an hour or two and the percentages are still like this then yes there is a problem.
Sent from my Nexus 4 using Tapatalk 2
joshnichols189 said:
This is NOT the answer. His battery in the image has dropped 7%. If he hasn't used the screen much it is perfectly understandable that screen might not be a large percentage of that 7%. As he uses the phone more screen will use a larger percentage of his battery and Android OS will use less.
If he gets to the point where the screen is on for an hour or two and the percentages are still like this then yes there is a problem.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
My android system has never been that high, regardless if I used the phone for 10 minutes or 10 seconds , or not at all.
atw1927 said:
Hi there; this is my first post so please go easy on me.
Bought a Nexus 4 which is my first Android device, but the battery life is bugging the hell out of me. Surely the screen should always be at the top, right? I left it to sleep overnight on a full charge to find that it had shot down to 60% when I woke up at 7 this morning.
I haven't rooted or flashed or anything like that, because as I said, I'm an Android virgin. I have location settings off, only Gmail syncing and the usual push notifications here and there. Nothing too fancy or strenuous.
Any help on how I can go around fixing this? I'm a little afraid to rooting/flashing/ROMs etc, because I've no clue what works best.
Cheers!
Click to expand...
Click to collapse
Actually No the "Screen" should not always be at the top of the stat list. If you use the phone more than it idles, then yes... but if you are like me, mine says "Phone Idle: 20%" (which is on top) and "Screen" is 4th on the list with 12% (Wi-Fi and Cell standby above it) [this is my personal phone, and I mostly use my work phone. hence the high Idle & standby]
I was having an issue with my phone running out of battery, with very little usage from it. I mean very little, I might make 2 calls from it each day, and respond to an email now and then. I found that an App was preventing my Screen from going into "Deep Sleep" or even "Sleeping" possibly. So I uninstalled all apps (well I only had like 4 additional apps installed), except for 2 that I need (Google Voice & Drive). Powered off the phone, charged it fully, then powered back on. Its been running on the same charge for 24+hrs now and reads 68% battery remaining.
So check the apps you have installed, some use background data, and might be causing problems...
Crisisx1 said:
My android system has never been that high, regardless if I used the phone for 10 minutes or 10 seconds , or not at all.
Click to expand...
Click to collapse
And your phone is the definitive guide for what Android OS usage is? Maybe his phone woke up those services for a period of time longer than normal.
The answer of "lol looks wrong root and install kernel" is terrible advice when so little information is given.
Sent from my Nexus 4 using Tapatalk 2
What else would you like to know?
atw1927 said:
What else would you like to know?
Click to expand...
Click to collapse
A longer battery graph would help a lot. If yuppy want top search XDA there is a free app called better battery stats that will help you diagnose if something is running in the background eating battery or even if your phone I'd properly entering deep sleep.
Sent from my Nexus 4 using Tapatalk 2
Better Battery stats and battery screenshots here
atw1927 said:
Better Battery stats and battery screenshots here
Click to expand...
Click to collapse
See now it is much easier to see that you actually do have a problem and what it is. You have the wakelock problem as you can see from Better Battery Stats which falls under Android OS on the other screen. It also appears that you have somewhat weak signal which could cause the wakelock to drain battery even more. There's not much you can do about that wake lock, some kernels have patches for it but those have their own issues as well.
Sent from my Nexus 4 using Tapatalk 2
Could I just install any kernel on stock android and be OK with it? As I've said I've no idea what's best for me; just something nice and clean that doesn't have issues like this. I live onsite where I work so my WiFi is pretty much on all the time if that helps in anyway whatsoever
I'm gonna let it run down completely tonight and charge it, but I don't expect it to help much.
joshnichols189 said:
And your phone is the definitive guide for what Android OS usage is? Maybe his phone woke up those services for a period of time longer than normal.
The answer of "lol looks wrong root and install kernel" is terrible advice when so little information is given.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
I never told him to install a kernel. The advice I gave is to do a reset then I asked if he was rooted or running a custom rom or kernel because that might of been the problem.
Sent from my SGH-T999 using xda app-developers app
Bump
Fully charged overnight, battery still sinking like a ship. 45 minutes and I'm already down to 94% already!
Idiot question; will installing a kernel just solve this? For now as a new guy I'd like to keep it as stock as possible before fiddling with it.
atw1927 said:
Fully charged overnight, battery still sinking like a ship. 45 minutes and I'm already down to 94% already!
Idiot question; will installing a kernel just solve this? For now as a new guy I'd like to keep it as stock as possible before fiddling with it.
Click to expand...
Click to collapse
The battery on the n4 seems horrible.
I'm completely stock I just got my phone yesterday, I charged it to 100% now its at 64% battery with only 47 minutes of screen on time.
on the s3 I would be around 83% with 47 minutes of screen on time.
I'm gonna unlock the boot loader and root soon and try Franco kernel I've been reading good things about it.
Sent from my Nexus 4 using xda app-developers app
The battery life on the stock kernel isn't great because the CPU management isn't optimized well. It ramps up the CPU (frequency, number of active cores...) very easily and keeps it there long, which removes the occasional lag but sucks more battery. Flashing a more battery friendly kernel would definitely help you if that is the root of your battery issues and not a badly coded app.
Franco's kernel is a very popular one, and very battery friendly compared to stock (and that doesn't mean you lose performance). It is the one I'm currently using. Most people report of screen on times of 4 or 5 hours. With not so heavy usage and wifi (not 3g) I can also pass 5 hrs.
To install a kernel you need to unlock your boot loader and install a custom recovery. No need to root, but.. why not since you're at it
You can try different kernels with the stock ROM. You don't necessarily need a custom ROM. Just be careful to read the dev's OP and instructions, and definitely not to flash a kernel for another device.
Also another thing that reduces battery is your mobile data, if there are a lot of programs that sync on the background. You can use a program that turns off your mobile data when your screen is off and switch it back on just for a sync every xx minutes. Juice Defender is such app, though I like to use Tasker for that. If you use Tasker and are interested in that project, ask or send me a pm. It works great.

Battery Life Declining

Hi guys,
So bought the Verizon Galaxy S5 for my fiance when it came out. Over the past week or two it's been dying rather quickly. Attached are some battery metrics I took from the screenshot. Do they look normal to you?
It looks like the android system is using up all the battery, but I'm not sure why this is.
Thanks in advance for any help!
Mike
It seems your Gps is on.
Keep GPS off.(Location).
This will help you to boost your battery.
this is perfectly normal. having 35% after 8 hours is actually average
WCM3 said:
Hi guys,
So bought the Verizon Galaxy S5 for my fiance when it came out. Over the past week or two it's been dying rather quickly. Attached are some battery metrics I took from the screenshot. Do they look normal to you?
It looks like the android system is using up all the battery, but I'm not sure why this is.
Thanks in advance for any help!
Mike
Click to expand...
Click to collapse
Do you remember what the screen time was from those screenshots? Android OS at 60% seems really high
Sent from my SM-G900I using XDA Free mobile app
WCM3 said:
Hi guys,
So bought the Verizon Galaxy S5 for my fiance when it came out. Over the past week or two it's been dying rather quickly.
Click to expand...
Click to collapse
You have unrealistic expectations. Using two thirds of the charge over 8 hours is not atypical. Why do you believe otherwise?
You can do various tweaks to gain a few hours e.g. GPS always off, short screen time outs, perhaps install some inverted apps (black themed screens use considerably less battery), et cetera. Or perhaps invest in an extended capacity battery. Or some people feel that it is easier to carry a spare battery.
.
.
What is everyone on in this thread?! 8 hours is nothing and unless you have been gaming non stop, which seems doubtful considering the display being almost non existent in the log, you should normally get at least 24-48 hours with about 3-5 hours of screen time. Something is wrong with either the software or the battery, but normally it is a software problem, BBS is your friend.
johan81 said:
should normally get at least 24-48 hours
Click to expand...
Click to collapse
You sir, are a troll until proven otherwise. You are simply wrong, perhaps the reason why all of the other posts disagree with you. 24+ hours is not normal. The only way anyone would get that kind of duration is to have the phone off most of the time and most people do not use their phones that way. The OP had 8.6 hours at @ 32% remaining, a wholly normal result.
Certainly battery life varies widely depending on GPS & wifi use, gaming, screen time and so forth. But to claim that 24+ hours is normal is egregiously specious.
.
fffft said:
You sir, are a troll until proven otherwise. You are simply wrong, perhaps the reason why all of the other posts disagree with you. 24+ hours is not normal. The only way anyone would get that kind of duration is to have the phone off most of the time and most people do not use their phones that way. The OP had 8.6 hours at @ 32% remaining, a wholly normal result.
Certainly battery life varies widely depending on GPS & wifi use, gaming, screen time and so forth. But to claim that 24+ hours is normal is egregiously specious.
.
Click to expand...
Click to collapse
Wow wow, hold your horses, you are being serious? It is completely normal for me with my 900F model and a lot of people are getting it. 24/48 hours is my typical battery with phone on (the battery obviously doesn't count power off, so that is a moot point anyways). I happened to make a SS last month and will share it for you to see and I didn't even try to save the battery, I never do since the battery of the S5 is so exceptional!
I agree, it does not look normal. Something is probably holding wake locks or working the CPU. There's a lot of badly written apps out there, including some of the most popular. I've seen FB messenger and Slacker radio apps use 2-6% CPU in the background for no good reason, consistently until force closed.
In any case, try to install an app that can read wakelocks, like BetterBatteryStats or GSAM. Also check the tasks screen in Android Tuner to see if something is keeping the CPU busy in the background for no reason.
Once you figure out the abnormal drain, try installing my app, LeanDroid to extend your battery even more
Sent from my Nexus 5

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