Database Users

Strange Battery Issue

I've had my phone for about a week now(att unrooted) and experienced something very strange this morning. I fully charged the phone at around 5:30 last night and used he phone very moderately. At around 11:30 pm uploaded 3 photos on my google drive and the battery was 80-90%. Woke up this morning and the battery was dead. This is totally out of the ordinary because I never experienced this before even with my old and buggy captivate. Keep in mind that I was on wifi and the phone is not yet rooted. Has anyone else noticed anything like this?

That is strange. Honestly, I dunno what could cause it besides some random app that you installed.

i say download a battery calibrator and then go from there

master acehole said:
i say download a battery calibrator and then go from there
Click to expand...
Click to collapse
Battery Calibrator won't do anything.
Install Better Battery Stats, and when your phone turns on after plugging it in, see what was using the most power. It won't work for the first time but will work in the future.

Even better uninstall ****ty apps and disable notifications on this like word with friends, scramble with friends, etc. Go into app manager and disable everything you don't use. Report back in a week.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

I've had the phone for 5 days and gone through maybe 8 batt cycles. I'm not getting more than 2hrs screen time on any cycle. This is stupidly horrible battery life. There has got to be something severely wrong. I don't do much with the phone. I can't even with less than 2hrs to work with. Overnight batt loss is maybe 8%.
Any help is ENORMOUSLY appreciated.
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Update
I was able to reproduce something similar. I opened up market\play to do a few updates and once the update process started, I put the phone down on my desk. Updates installed and the screen remained turned on. Now, I don't remember the exact steps or what other apps were running in the background. All I know is that the screen remained on for a few minutes until I manually turned it off.
This could very well be a bug in Samsung's face\image recognition software that handles smart stay. It might be a bug in google play, a faulty app or a combination of things... Because the battery on this phone is actually quite amazing. I unplugged my phone this morning, went to work, updated a bunch of apps, saved local maps to google maps, hung out on facebook, surfed the web... and after 10.5 hours, I still have more than 50% battery left.
That's a good indication that what I'm experiencing is a software glitch of some kind that if left un-attended, could completely drain your battery.

Try turning battery saver on and check pretty much everything in there. Disable smart stay. Manually turn off your screen when you're not using it. Turn off GPS, Bluetooth, and WiFi when you're not using it. Some downloads hang in the Play store if you "update all"... cancel these and download them one at a time. Do not just assume it all went to plan.
These tips on combination with my first post should help. You should get 4 hours of screen time with some phone calls in a single charge. I find certain apps like Scramble with friends chug charge faster than things like reading xda. Chrome for instance on the PC is less battery friendly and more resources intensive than IE. Perhaps the same is true for the mobile version.
There are way too many variables for us to pick out what your underlying issue may be. Start eliminating things and we'll keep throwing out new ideas. Good luck!
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

My phones battery increased off of the charger. Anyone else having this happen? It jumped from 77 to 78 so idk what's going on.
Sent from my SGH-T999 using xda app-developers app

http://www.xda-developers.com/andro...ii-cell-standby-power-drain-issue-identified/

I just posted a pretty good size list of apps that can be disabled. That helps save battery
http://forum.xda-developers.com/showthread.php?t=1740228

I have managed to narrow it down.
- I had 2 updates in market. I pressed update all.
- screen turned off when the first update was almost done.
- I pressed the power key and entered my pass to turn the screen on and left the phone on my desk.
- I kept seeing the smart stay icon, but the screen remained on.
- I moved phone without touching the screen...no change.
- held my hand over the camera at a distance of a few inches and the screen finally dimmed out.
This happened while google play had focus. This is a bug in smart stay or google play.

Somethings definitely up, this battery life is as bad if not worse than my epic 4g.
Did notice one thing... I cleared memory and it said 51 applications closed.... I don't even think i have that many applications on the phone!
Memory eats up a lot of power.

itisagoodname said:
Somethings definitely up, this battery life is as bad if not worse than my epic 4g.
Did notice one thing... I cleared memory and it said 51 applications closed.... I don't even think i have that many applications on the phone!
Memory eats up a lot of power.
Click to expand...
Click to collapse
You're the second person I found that has the same problem as me! I can't even get 2hrs screen time through my day to day. The same day to day that my atrix was giving me 3.5hrs on.
I feel better knowing that I'm not doing something wrong, but could the phone just have that horrible of battery life and all these reports are a fanboi lie with review articles just copying each other?

I'm so glad im not the only one experiencing all of this! Lol, i upgraded from my mytouch 4G, i DID notice smart stay would come on at random times, sometimes when i wasnt even looking at my phone lol, disabled it & disabled a whole bunch of other crap & like many others & i dont get 4 hours screen time, more like 2 which sucks, id also like to have my data on all the time (but im forced to turn it off to save battery ), im rooted & ive uninstalled w.e crap i didnt need/want or felt it was just running for no reason. I'm doing the exact same battery steps i did with my mytouch & its sad =/ i was hoping i wouldnt have to do half of the ones im doing now, i LOVE my S3 but samsung needs to figure out wth is goin on & same with the guy who talked about if the articles r lying) i saw one on tech radar yesterday on battery life on the S3, they r either lying or they got a good phone in a good batch, smh, also experience my screen flickers from time to time while texting (i always close background processes) i notice blotches on the screen while texting at night or in the dark also, again i love my phone but u know, id love to have my data on constantly to check things quick without my battery going down drastically when i barely even touch it =/

I too have strange battery life. I usually leave my phone charging over night. When I unplug the battery in the morning, I lose about 10% every hour. However, when I get to around 80%, I recharge it again and it loses battery at a MUCH slower rate. Around 2% every hour on stand by. I'm not sure why this happens, but it does.
Also, there are some instances when I pick up the phone and it's pretty warm. Even though it's been sitting idle for about 20 min. Then there are times when I pick it up and it's normal room temperature. This leads me to believe that there are some processes going on while my phone is idle. I'm trying to find out what apps are causing this, as I believe it is causing my battery to drain while idle. It's very inconsistent, which is making it hard to track down. I don't even have a lot of apps installed. Most of it is actually the bloatware that came with my phone
Sent from my SAMSUNG-SGH-I747 using xda premium

JayFReaZy said:
I too have strange battery life. I usually leave my phone charging over night. When I unplug the battery in the morning, I lose about 10% every hour. However, when I get to around 80%, I recharge it again and it loses battery at a MUCH slower rate. Around 2% every hour on stand by. I'm not sure why this happens, but it does.
Also, there are some instances when I pick up the phone and it's pretty warm. Even though it's been sitting idle for about 20 min. Then there are times when I pick it up and it's normal room temperature. This leads me to believe that there are some processes going on while my phone is idle. I'm trying to find out what apps are causing this, as I believe it is causing my battery to drain while idle. It's very inconsistent, which is making it hard to track down. I don't even have a lot of apps installed. Most of it is actually the bloatware that came with my phone
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
I am starting to think it's ATT's LTE connection. I randomly have days where my battery won't make it until 5 pm without really using it very often. Other days, the phone goes all day with 4 hours plus of screen time no problem. On the really bad days, the phone will stay warm despite me closing every app with task manager. I am now experimenting with turning off mobile data (not a permanent solution), and the phone is cool to the touch again. It may be that the phone is burning up the battery in areas where the LTE connection is weak.

Pivo99 said:
My phones battery increased off of the charger. Anyone else having this happen? It jumped from 77 to 78 so idk what's going on.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Mine did this as well I think it went up 3-4%.

Stuck at 100%?

My battery is stuck at 100% and won't go down. Normally I'm not complaining about battery life in this way, but this is really weird. I'm running Paradigm by the way.

Fully charge your battery, then wipe your battery stats in CWM. If that doesn't work, then it's probably an issue with the ROM.
Sent from my Nexus 7 using xda premium

That didn't help, so I flashed the euroskank cm10 nightly, and I still have the issue. Ahhhh. I don't want to have more issues with this tablet. Any other recommendations?

Go back to completely stock and see if it works. Then you'll at least know if it's software related.
Sent from my Transformer TF101 using xda premium

I'm now stock unrooted, all set up. I'll run stock for now until the new Paradigm hits. Then, I'll try rerooting. If I run into this issue again on stock then I'll call Google, and probably just return it. I don't really want a third one. BTW, when it happened, recovery would also show 100% as a reading, but would usually go down to 99% after a while, and then when I rebooted, it would discharge at a normal rate, but would never compensate for the weird extra time at 100%. Does this point to a software or hardware issue?

Is it plugged in?

Lol no. It says discharging, 100%. But my screen was on for 31 min, and it said that and I'm pretty sure the n7 isn't rated for 30+ hrs screen on time.

Amphibliam said:
I'm now stock unrooted, all set up. I'll run stock for now until the new Paradigm hits. Then, I'll try rerooting. If I run into this issue again on stock then I'll call Google, and probably just return it. I don't really want a third one. BTW, when it happened, recovery would also show 100% as a reading, but would usually go down to 99% after a while, and then when I rebooted, it would discharge at a normal rate, but would never compensate for the weird extra time at 100%. Does this point to a software or hardware issue?
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Click to collapse
how long was it at 100%? its normal for it not to drop from 100% over a period of time, battery life is that good. heres a screenie from my n7 from yesterday..
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simms22 said:
how long was it at 100%? its normal for it not to drop from 100% over a period of time, battery life is that good. heres a screenie from my n7 from yesterday..
Click to expand...
Click to collapse
I'm fairly sure 6+ hours with the battery still at 100% is not normal, unless it was asleep the entire time.
Sent from my Transformer TF101 using xda premium

just lou said:
I'm fairly sure 6+ hours with the battery still at 100% is not normal, unless it was asleep the entire time.
Sent from my Transformer TF101 using xda premium
Click to expand...
Click to collapse
majority of the time, i was busy at work. but, ive seen and some other people have seen 2+ hours at 100% with use. so, depending how long hes been watching it drop, it might be normal. especially since he said he saw it drop in recovery then drop after he booted up.

As I said earlier, battery was at 100% for 31 minutes of SCREEN ON. Then I rebooted, cleared caches, hung around in recovery for 5-10 min, saw it hit 99%, rebooted, and system said 99%. Like I said, that would mean I could get 30 HOURS of screen on time. NO WAY is that possible.

Amphibliam said:
As I said earlier, battery was at 100% for 31 minutes of SCREEN ON. Then I rebooted, cleared caches, hung around in recovery for 5-10 min, saw it hit 99%, rebooted, and system said 99%. Like I said, that would mean I could get 30 HOURS of screen on time. NO WAY is that possible.
Click to expand...
Click to collapse
that doesnt mean that you would get 31 hours. what you just described is normal and youre freaking out for nothing.

Maybe you have a super battery saving kernel try just to run it flat, then do a charge while the device is off

Amphibliam said:
As I said earlier, battery was at 100% for 31 minutes of SCREEN ON. Then I rebooted, cleared caches, hung around in recovery for 5-10 min, saw it hit 99%, rebooted, and system said 99%. Like I said, that would mean I could get 30 HOURS of screen on time. NO WAY is that possible.
Click to expand...
Click to collapse
my first day with the n7.. happy now? i ended up getting over 7 hours screen on time. you cant extrapolate 30 hours from it that way like you were doing.

This happened to me too.
After taking it off the charger it wouldn't go down. Now keep in mind my case I had left it overnight and hadn't played with it so I had at least a day in my battery info on 100%. Rebooted, then tried factory reset, all the normal stuff to try and nothing. Then tried CWM wiped everything then even reflashed the ROM and tried a different kernel after going back to complete stock it started decharging finally but now dies at 20%. It just turns off doesnt even shut down, and when it finally gets enough juice to start it would flash a little text message in the upper left "show low low battery logo". I finally managed after flashing CM10 then back to stock and charging and decharging a few times and deleting batterystats.bin from data and pulling the charger while it was booting to get it to realize there was an inbetween 0 and 17% and it sat charging for a while on 0, where it had just jumped straight to 18 but is now charging up normally again, that is where I am at.
I've got like 3 days left on my exchange with GameStop and I'm back and forth whether I should just take it back because I don't have any of this screen lift banter every talks about but don't want to end up with a faulty battery because it only just started here like last week.

People, the nexus 7's battery is not that good that it can go for hours without dropping 1%!!!
It could be that there is a problem with the battery indicator. That could be hardware or software.

tomb20 said:
People, the nexus 7's battery is not that good that it can go for hours without dropping 1%!!!
It could be that there is a problem with the battery indicator. That could be hardware or software.
Click to expand...
Click to collapse
say that in the trinity kernel thread, i bet just about everyone in that thread will disagree with you.

simms22 said:
say that in the trinity kernel thread, i bet just about everyone in that thread will disagree with you.
Click to expand...
Click to collapse
Even with the best kernel available.
Your saying that a 7" LCD can be turned on for hours without a 4325 mAh battery losing 1%!!!
And that's without system, apps etc running.

tomb20 said:
Even with the best kernel available.
Your saying that a 7" LCD can be turned on for hours without a 4325 mAh battery losing 1%!!!
And that's without system, apps etc running.
Click to expand...
Click to collapse
yup. remember, theres no 3G/4G radio sucking the battery juice dry.

Well, flash all stock, and watch the battery meter.
Flash a custom rom with stock kernel and watch the battery meter.
Flash a custom rom and a custom kernel and watch the battery meter, what do you get?
FYI, look at the screen on and total time at 50% battery, i bet you won't have double those time by time you hit 1% either.
You can't look at the first 30 minutes and go crazy over it. That's as bad as watching wakelocks and going crazy over wakelocks before you have an issue, wakelocks are normal and needed.
Stop obsessing, enjoy the tablet.

Happy but Disappointed :(

I ordered the ZF2 from NewEgg when it released in the US.
I now had it for 4 days and generally feel good about the upgrade from a Nexus 5, but there are some things that really bother me with this phone:
1. Heat. This phone seems to heat up pretty bad when charging and doing something on the phone. When I just got it and was doing updates connected to power it actually gave out an error saying it overheated and needs to shut down.
2. Capacitive buttons are laggy. It takes about a second to register the press of the home button along with back and recent buttons. The Nexus 5 onscreen buttons so much faster.
3. The Zen Keyboard is laggy. Had to download and install the stock google keyboard.
4. Benchmarks are weak. Highest I got was 45k on Antutu. I have seen others getting over 48k. Its a minor gripe as the general performance is really good.
5. The plastic ridge that surrounds the screen seems to be very weak. It already has dings in it. Very sad about this.
6. Camera is not compatible with Hypwrlapse or ManualCamera app. I hope that those apps get updated and start supporting ZF2.
7. I don't know what's going on with this battery. Maybe its the apps that I have. But it feels weak. Woke up today at 8am. Its 5:30 now. I'm at 38% with 2 hours and 30 minutes screen on time.
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If anyone else has any thoughts about the phone, please chime in.

coolmaster121 said:
I ordered the ZF2 from NewEgg when it released in the US.
I now had it for 4 days and generally feel good about the upgrade from a Nexus 5, but there are some things that really bother me with this phone:
1. Heat. This phone seems to heat up pretty bad when charging and doing something on the phone. When I just got it and was doing updates connected to power it actually gave out an error saying it overheated and needs to shut down.
2. Capacitive buttons are laggy. It takes about a second to register the press of the home button along with back and recent buttons. The Nexus 5 onscreen buttons so much faster.
3. The Zen Keyboard is laggy. Had to download and install the stock google keyboard.
4. Benchmarks are weak. Highest I got was 45k on Antutu. I have seen others getting over 48k. Its a minor gripe as the general performance is really good.
5. The plastic ridge that surrounds the screen seems to be very weak. It already has dings in it. Very sad about this.
6. Camera is not compatible with Hypwrlapse or ManualCamera app. I hope that those apps get updated and start supporting ZF2.
7. I don't know what's going on with this battery. Maybe its the apps that I have. But it feels weak. Woke up today at 8am. Its 5:30 now. I'm at 38% with 2 hours and 30 minutes screen on time.
If anyone else has any thoughts about the phone, please chime in.
Click to expand...
Click to collapse
1. Mine barely gets warm, and I have yet to see it get as warm as my G2 yet. It gets warm during charge but every device heats up during that process. Temps jump between 3x-4x℃.
2. I'm not having this issue, so not sure what the cause is.
3. The keyboard is smooth like the LG keyboard, and seems just as responsive as my N9 was.
4. I have the 2GB, so 42K seems to be the ceiling in antutu.
5. I've had mine for roughly a week and there aren't any signs of use on it, such as dings.
7. With my 2GB variant I reach ~2.5-3hrs for SOT at roughly 65-50%. I charge the battery to 85/80% and end up with 4-5hrs for SOT consistently. For me Android OS is really hurting battery performance.
"I'd Totally Hug You, If That Was Something I Did"

Something is seriously wrong with the battery of Zenfone 2, 550 ml. It automatically comes down to around 30% in 8-10 hours, even without any active use at all!

i was one who got early units of 550 ml...mines is performing very well......i dont have any issues too what so ever based on your reports above...standby time for 7 hours only reduce to 4 % batterry consumption for me....return your unit if its got warranty so you can sleep better

The battery and 5.0 are a problem. I've had wifi turned off for the past 3 days and the battery app is still reporting that wif is using 20-25% of the battery. The saving grace is standby which is outstanding. Left it off charge all night and it lost 8% in 11 hours. Once I start to use the phone the battery dies very quickly.

Do the rom upgrade

coolmaster121 said:
I ordered the ZF2 from NewEgg when it released in the US.
I now had it for 4 days and generally feel good about the upgrade from a Nexus 5, but there are some things that really bother me with this phone:
1. Heat. This phone seems to heat up pretty bad when charging and doing something on the phone. When I just got it and was doing updates connected to power it actually gave out an error saying it overheated and needs to shut down.
2. Capacitive buttons are laggy. It takes about a second to register the press of the home button along with back and recent buttons. The Nexus 5 onscreen buttons so much faster.
3. The Zen Keyboard is laggy. Had to download and install the stock google keyboard.
4. Benchmarks are weak. Highest I got was 45k on Antutu. I have seen others getting over 48k. Its a minor gripe as the general performance is really good.
5. The plastic ridge that surrounds the screen seems to be very weak. It already has dings in it. Very sad about this.
6. Camera is not compatible with Hypwrlapse or ManualCamera app. I hope that those apps get updated and start supporting ZF2.
7. I don't know what's going on with this battery. Maybe its the apps that I have. But it feels weak. Woke up today at 8am. Its 5:30 now. I'm at 38% with 2 hours and 30 minutes screen on time.
If anyone else has any thoughts about the phone, please chime in.
Click to expand...
Click to collapse
I have the ZF2 which I bought at initial launch from ASUS France. I can tell that I don't have all the issues you are reporting.
1. The phone does heat when charging or making lengthy calls but it doesn't bother me since while charging it's normal and I don't make as many long calls but this has not happened since the last FW update.
2. The buttons are working alright. I haven't noticed any lags. If anything they are more sensitive for me. Takes a screenshot every now and then if I hold my recent app key for a fraction of a second.
3. I always used Google KB on all my android devices so again can't tell but initially I was using the ASUS KB and didn't face any major issues.
4. I haven't done any benchmarks so can't report on that yet.
5. No dings whatsoever. I am also using a case so I barely touch the device.
6. The device has to be supported by devs. I know that the beta Microsoft Hyperlapse does not support it right now but it should do once they add support for it.
7. Well battery has been a concern for most on this forum but with the last FW I am getting 5 hours of SOT with 4G enabled all day. That's not bad at all compared to 2.5 or ~3 hours when I first started using the phone so it has been optimized and if ASUS is serious about this device (I hope they are) then it should only get better.

whynottoday said:
Do the rom upgrade
Click to expand...
Click to collapse
I'm on the latest firmware.?

iancjc said:
I'm on the latest firmware.?
Click to expand...
Click to collapse
i am on last firmware and do not have any issue

coolmaster121 said:
I ordered the ZF2 from NewEgg when it released in the US.
2. Capacitive buttons are laggy. It takes about a second to register the press of the home button along with back and recent buttons. The Nexus 5 onscreen buttons so much faster.
If anyone else has any thoughts about the phone, please chime in.
Click to expand...
Click to collapse
Had the same issue with the capacitive buttons, did a factory reset and cleared the cache and they are now pretty much instantaneous when you press them.

iancjc said:
The battery and 5.0 are a problem. I've had wifi turned off for the past 3 days and the battery app is still reporting that wif is using 20-25% of the battery. The saving grace is standby which is outstanding. Left it off charge all night and it lost 8% in 11 hours. Once I start to use the phone the battery dies very quickly.
Click to expand...
Click to collapse
turn off the allow wifi scanning when off option .. its probably google play location services killing your battery

Thanks never thought of that. Will let you know how it goes tomorrow.

iancjc said:
The battery and 5.0 are a problem. I've had wifi turned off for the past 3 days and the battery app is still reporting that wif is using 20-25% of the battery. The saving grace is standby which is outstanding. Left it off charge all night and it lost 8% in 11 hours. Once I start to use the phone the battery dies very quickly.
Click to expand...
Click to collapse
Go to Wi-Fi Advanced Settings and turn off "scanning always available". That will fix the Wi-Fi consistently on even when turned 'off'.

There's at least a few threads similar to this one already going in this device section. Like this one...
http://forum.xda-developers.com/zenfone2/general/zenfone-2-worth-buy-t3113954
Don't need more the same. It just clutters the section and spreads the talk on the subject out between threads. Join the discussion in the one above, or another. :good:
Thanks! Thread closed.
Darth
Forum Moderator

battery life falling off a cliff

So this has been happening with my battery lately - it's chugging along no problem, then the second my phone hits 30%, it dies completely, and when you hook it up to a charger, it starts charging from 0%.
This has happened with multiple replacement batteries already. Anyone know what's up?
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Are thos replacement batteries new or used?

heyitsejohn said:
So this has been happening with my battery lately - it's chugging along no problem, then the second my phone hits 30%, it dies completely, and when you hook it up to a charger, it starts charging from 0%.
This has happened with multiple replacement batteries already. Anyone know what's up?
Click to expand...
Click to collapse
Was an issue for me back when my battery was bulging. You might want to try and recalibrate the battery if it's new by charging it overnight, if not new then get a new one. If that doesn't help, factory reset. If problem continues, take it to Samsung.
Sent from my SM-N920I using Tapatalk

I had the same exact problem with mu Note 10.1 2014 edition. Then I downloaded a battery calibration app. The one I downloaded is made by a developer by the name NeMa. It worked as stated. Couldn not be happier. But, it needs Root. And does not ask for ridiculous permissions. Give it, or another one a shot and report back.
Sent from my SM-N910V using Tapatalk

Guys, for years now it's been proven that battery calibration is a myth. The act of charging the battery to 100% has the same effect as it does the same thing as a battery calibration app: delete the batterystats.bin file.
The problem is either with the battery or the charging circuit in the phone. Take it to Samsung and have it looked at, because a battery calibration app won't work here, despite claims to the contrary.

Strephon Alkhalikoi said:
Guys, for years now it's been proven that battery calibration is a myth. The act of charging the battery to 100% has the same effect as it does the same thing as a battery calibration app: delete the batterystats.bin file.
The problem is either with the battery or the charging circuit in the phone. Take it to Samsung and have it looked at, because a battery calibration app won't work here, despite claims to the contrary.
Click to expand...
Click to collapse
It has been proven as much as evolution. And that is about zero. No proof. It is a theory. Now, you are of the opinion that it is a myth. I am of the persuasion that it is not. Seeing as my Note 10.1, SGS3, and SGS4 all had battery issues for long periods of time. Then I remembered that there is this "myth" called battery calibration. After trying out the "myth", my wife's phone no longer shuts down randomly, my Note 10.1 does not go from 30% to dead instantly and neither does my SGS3. All have batteries that now last exactly as long as the manufacturer specs them out to. And non of them freez up and or shut down any more. All of these devices have been going through these problems for many months now. Tried the "myth". No more problems for this past week. And there are not going to be problems.
So, in my case, the "myth" has gone from the act of being "myth" to fact. Until your device start acting up where battery stats play a roll, then it will stay as such. A myth. Now, if the battery has been through to many charging cycles, then it is probably old and on its way out. In that instance, no battery calibration will bring it back from the state of dying. At that point, it is time to get a new battery.
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I'll take facts over belief any day of the week.
https://plus.google.com/105051985738280261832/posts/FV3LVtdVxPT
Read and learn.

Strephon Alkhalikoi said:
I'll take facts over belief any day of the week.
https://plus.google.com/105051985738280261832/posts/FV3LVtdVxPT
Read and learn.
Click to expand...
Click to collapse
So you belive everything that you see on TV as well? I suppose that the Internet must be God to you. I mean, there is an http link for everything. Must be fact.
How would you like to explain what happen ed d to all three of my devices that were having g battery issues. SGS3, Would charge to 100% drain down rapidly and when it hit 30% it would just shut down.
SGS4, would drain down to nothing at random and shut down at random. Even in the middle of a call. Note 10.1 2014 edition would drain down extremely fast, and I mean fast. It also would shut down. That one I did replace the battery on. And it still did it. All of these problems have persisted for several months now. Only a week ago did I try the calibration method. Which I am aware, using an app is the short way around deleting the file for the battery. At any rate, all devices are back to normal operations. By the way, I put the old battery back into my Note 10.1, and did the recalibration. AL is well with it also. But, the Internet must be telling the truth. Plain and simple, calibration will not fix a broken battery. It will however reset the part on the system that reads the battery correct and tell the OS what to do with those numbers. In the case of the case of these, my devices, there are no more shut downs happening. Or was all that in my head for months? Probably just a placebo effect? Yeah, that's what it was. The Internet says so. Lol! I'm going to put up a link to a YouTube video that shows that horses are pink.
http://youtu.be/bE4JqBAKy2E
Oh snap! It must be true. There is an http.
Oh mighty Internet God we worship you! Lol!
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---------- Post added at 10:58 AM ---------- Previous post was at 10:57 AM ----------
Sent from my SM-N910V using Tapatalk
---------- Post added at 11:08 AM ---------- Previous post was at 10:58 AM ----------
By the way, I am just having fun with you and bust your chops. Lol! But I still stand by my statements of calibration. It works in some scenarios. Particularly when switching ROMs.
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On my old Gingerbread device, I used Nema's Battery Calibration app. Once I read the information from the Google engineer in the link I provided, I stopped, and haven't touched a battery calibration app since. In my experience, calibrating the battery is a needless step, because you aren't actually doing anything to the battery itself or the circuitry within it. For example, you mention using it after changing ROMs. Why? My battery life has not been affected from all the ROM switches I've made in the last year, and I've made plenty of them.
If a battery calibration app were to actually recondition the battery, then I would say such an app is useful. Instead, you have a placebo effect brought about by an app that does nothing that Android itself doesn't already do. So why waste the time, the energy, and the (minuscule) storage space?

Google make Android. So if they say that batterystats.bin has no effect on actual battery life and such, then it must be true. I mean they are the ones who made the damn file, they should know what it relates to.
The reason why your 3 devices worked again after a battery calibration might be something else. Maybe the app you used did something else other than just delete batterystats.bin file.
I also used to calibrate my battery on my old Gingerbread device. But honestly, I didn't see any improvement in battery life by doing this. Nor did I see any worsening in the battery life or sudded death by not calibrating.

GDReaper said:
Google make Android. So if they say that batterystats.bin has no effect on actual battery life and such, then it must be true. I mean they are the ones who made the damn file, they should know what it relates to.
The reason why your 3 devices worked again after a battery calibration might be something else. Maybe the app you used did something else other than just delete batterystats.bin file.
I also used to calibrate my battery on my old Gingerbread device. But honestly, I didn't see any improvement in battery life by doing this. Nor did I see any worsening in the battery life or sudded death by not calibrating.
Click to expand...
Click to collapse
First, Google did not make Android. They purchased it and now modify it. But that is besides the point.
Sorry, but the app that I used did one thing and one thing only. And that was clear the file. It did nothing else. Can you tell me what if not battery stats, would make all three of my devices behave properly? Because I would love to know, as would the rest of the community. I seriously do not particularly care what Google stated. I care what was happening with my devices. And they were not working. I used an app to clear a file that has to do with the batteries. All of my devices work exactly as they should. Google can tell me that all rainbows are silver. But, my devices are not telling me one thing about my batteries while something else is the case. And my devices are not shutting down on their own either. So, 3-4 months of serious charging, readouts , and performance issues all cleared up after the use of an app. I am confident coincidence is not the case. But thank you for your disbelief in something. Absolutely appreciated. Plain and simple people, if you are having batteries issues. Try the simplest method. A calibration app. If it works, then great. If not, move on to the next step. Try different charger and or cable. If that fails, chances are that the battery is on its last leg. Replace it. Nothing more, nothing less. Zero arguments to be had. Nothing to prove. Or disprove. If any one is of the persuasion that a calibration app is a waste of time, don't use one. Also a simple thing to not do.
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GT-i9505 weird battery behaviour

I've got this weird battery level increase every time after usage period and when phone is in standby. Long ago I had something similar with a cheap "original" battery from amazon which was surely a product falsification. But the battery I'm using now I purchased directly from Samsung online shop and it worked flawlessly for over half a year. About a year ago I switched to a S5 and didn't use the S4 that much anymore.
What I did so far:
- I calibrated the battery (guide by @lawyer_06)
- did couples 0 to 100% charging
- cleared system cache
- updated rom to latest (TW deodexed/stock kernel)
-> nothing changed
Any Ideas what's going on here?
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The battery percentage display is an approximation of the battery level, it's not the actual level.
With high usage it may start to approximate it wrongly, but in the standby phase it will start slowly going back to a value closest the the actual level.
Doing the 100-0 discharge is most damaging. If you want to keep this battery for a longer time, then stop.
Also, this is completely normal. Happens on my phone which runs the same battery I bought it from the store with, and the same happened on my previous phone which also used the original battery it was bought it (and it wasn't a Samsung).

Just to add, battery calibration routines don't do anything except waste battery cycles: they only delete batterystats.bin, which is deleted anyway when the battery is fully charged. Stop trying to calibrate the battery.

Pwnycorn said:
...
Doing the 100-0 discharge is most damaging. If you want to keep this battery for a longer time, then stop.
Also, this is completely normal. Happens on my phone which runs the same battery I bought it from the store with, and the same happened on my previous phone which also used the original battery it was bought it (and it wasn't a Samsung).
Click to expand...
Click to collapse
Partially disagree:
Sometimes a 0 to 100% charging IS necessary to get a "digital reset", means the bat controlling system driver and the bat hardware need to be synchronised from time to time, especially when you sometimes take out the bat or even replace it with another one. And I really don't agree that this behaviour is "normal", I really never ever had s'thing like this with none of my Galaxy S phones (2-5) when using a original bat.
But thanks anyways for your thoughts.

Strephon Alkhalikoi said:
Just to add, battery calibration routines don't do anything except waste battery cycles:...
Click to expand...
Click to collapse
All the same what I wrote above to you. But thanks.

v00d007 said:
Partially disagree:
Sometimes a 0 to 100% charging IS necessary to get a "digital reset", means the bat controlling system driver and the bat hardware need to be synchronised from time to time, especially when you sometimes take out the bat or even replace it with another one. And I really don't agree that this behaviour is "normal", I really never ever had s'thing like this with none of my Galaxy S phones (2-5) when using a original bat.
But thanks anyways for your thoughts.
Click to expand...
Click to collapse
I've never had to synchronize anything. Is there any actual evidence to what you're saying?
I've taken my battery out many times, and I even had 2 batteries that I alternated between at some point.
And does this problem bother you that much? I already told you it has happened on 2 of my phones, both of which used the factory original battery.
Maybe you have never paid attention to it before.

v00d007 said:
All the same what I wrote above to you. But thanks.
Click to expand...
Click to collapse
Then you're a fool. Lithium ion batteries don't need calibration. The circuitry within the battery is designed to not only ensure the battery doesn't overcharge, but also that the battery's cells charge evenly. Claiming the battery needs "synchronization" is a load of horse crap, in that it's justification to treat the battery like an old NiCd.
Whatever. You go ahead and waste your time, and shorten the life of your battery. Perhaps on your next phone you'll get a clue.

Strephon Alkhalikoi said:
Then you're a fool. Lithium ion batteries don't need calibration. The circuitry within the battery is designed to not only ensure the battery doesn't overcharge, but also that the battery's cells charge evenly. Claiming the battery needs "synchronization" is a load of horse crap, in that it's justification to treat the battery like an old NiCd.
Whatever. You go ahead and waste your time, and shorten the life of your battery. Perhaps on your next phone you'll get a clue.
Click to expand...
Click to collapse
Sorry, but your comments are a bit off topic. It's the battery LEVEL INCREASE in standby what's irritating me and what's surely not meant to be like this. You just have to READ what I'm describing here. No need to be rude, I'm neither. [emoji6]

Pwnycorn said:
I've never had to synchronize anything. Is there any actual evidence to what you're saying?
I've taken my battery out many times, and I even had 2 batteries that I alternated between at some point.
.
Click to expand...
Click to collapse
I've expierienced quite a few times that battery level isn't calculated correctly AFTER doing things like this in row: flashing something with odin that goes wrong somehow, getting bootloop afterwards, no buttons work so taking out the bat for reset, flash something else to fix the boot problem and so on - after such procedure I sometimes had inconsistent battery stat, so that the phone i.e. shut down while showing 10%.
And concerning "original" batteries, I can tell you that the leading german computer magazine (c't) discovered in 2016 that so called "original" Samsung batteries that are sold at the german amazon/am.marketplace are up to 80% (!!) product falsifications from China. This "copies" have reached a such incredible high level of professionality that even for experts it's really hard to identify them as fakes. The only secure way to get a 100% original one is from the Samsung online shop. I had such a fake too and wondered why this bat life was so bad + this wierd battery behaviour I'm talking about here. But this time it's different cause the bat I'm using atm is surely a original one.
https://m.heise.de/newsticker/meldu...ef=https://duckduckgo.com/&wt_t=1489485953395

v00d007 said:
I've expierienced quite a few times that battery level isn't calculated correctly AFTER doing things like this in row: flashing something with odin that goes wrong somehow, getting bootloop afterwards, no buttons work so taking out the bat for reset, flash something else to fix the boot problem and so on - after such procedure I sometimes had inconsistent battery stat, so that the phone i.e. shut down while showing 10%.
And concerning "original" batteries, I can tell you that the leading german computer magazine (c't) discovered in 2016 that so called "original" Samsung batteries that are sold at the german amazon/am.marketplace are up to 80% (!!) product falsifications from China. This "copies" have reached a such incredible high level of professionality that even for experts it's really hard to identify them as fakes. The only secure way to get a 100% original one is from the Samsung online shop. I had such a fake too and wondered why this bat life was so bad + this wierd battery behaviour I'm talking about here. But this time it's different cause the bat I'm using atm is surely a original one.
https://m.heise.de/newsticker/meldu...ef=https://duckduckgo.com/&wt_t=1489485953395
Click to expand...
Click to collapse
The battery I'm using now is 100% original. I bought the phone brand new back in 2014 from a renown electronics store here in my country.
This self charging phenomenon doesn't happen only when the battery is in the phone. I mentioned that I used to alternate between two batteries, right?
Well, while stock battery was out, and secondary battery was in the phone, the stock battery used to have up to 10% more charge than when I did the switch.
So if I switched it at 50%, when I switched back it had 60%.
Someone once said that it's a sign of a healthy battery. I don't know about this. But you should stop worrying about it, I'm telling you it's normal.
Or you can have it your way and do a couple of more software changes, ROM changes, battery changes and whatever else, until you come to the realization that there's nothing wrong with it.
The only time you should be concerned, in my opinion, is when your phone shuts down prematurely.

Pwnycorn said:
....until you come to the realization that there's nothing wrong with it.
.
Click to expand...
Click to collapse
I'm not "worried", I just want a reliable status that I ALWAYS had before. I guess there's something broken either in software, blootloader or hardware. The issue even persists with another orig bat a friend gave me yesterday and no matter which rom, TW or cm12, 13 that I tested in the meantime.