Tab S 8.4 battery behavior - Galaxy Tab S Q&A, Help & Troubleshooting

I've noticed a trend of my battery dropping off like this. Granted I was playing games typically each time, but still strange to see such dramatic, steep drains, right?

I used to have this happen with my Tab Pro. This was one of the reasons that I got rid of it.
What I discovered though was that it was never fully charging to 100% so it would just suddenly lose like 20 or 30%. Next time charge up your Tab S and then reboot and make sure you are still at 100%. Not sure if it's the same issue. But it's worth a try.
Sent from my Surface Pro 3 using Tapatalk

laestrella said:
I used to have this happen with my Tab Pro. This was one of the reasons that I got rid of it.
What I discovered though was that it was never fully charging to 100% so it would just suddenly lose like 20 or 30%. Next time charge up your Tab S and then reboot and make sure you are still at 100%. Not sure if it's the same issue. But it's worth a try.
Sent from my Surface Pro 3 using Tapatalk
Click to expand...
Click to collapse
Thanks. I just took it off the charger at 100%, rebooted and I came back up at 98%. I'll see how this charge performs.

I had an LG G Pad that did the same thing before returning. Would charge it to 100% let it go to sleep then all of a sudden it would be 92% upon waking up a few seconds later. Really really weird.

Same thing as before. I bought from Amazon. Time to start talking about a replacement? I bought this for longer plane trips and this isn't cutting it.

Have you tried Reset to Factory Default when battery is fully charged?

mgrass said:
Thanks. I just took it off the charger at 100%, rebooted and I came back up at 98%. I'll see how this charge performs.
Click to expand...
Click to collapse
When this happens, plug it back into the charger whilst switched on until it reaches 100%, then see how it performs.
Sent from my SM-G900F using Tapatalk

ShadowFlare said:
Have you tried Reset to Factory Default when battery is fully charged?
Click to expand...
Click to collapse
I have not yet reset it following a charge.
It's been on charge all evening now and just checked it at 100%. Following reboot it came up at 99% which is acceptable.
Doing a reset now and will report back. . Following this it's back to Amazon we go.

mgrass said:
I have not yet reset it following a charge.
It's been on charge all evening now and just checked it at 100%. Following reboot it came up at 99% which is acceptable.
Doing a reset now and will report back. . Following this it's back to Amazon we go.
Click to expand...
Click to collapse
I feel mine has great battery life. I have mine overclocked and undervolted though. One charge has lasted me almost the whole road trip that I'm on from Kentucky to Florida. It's about 800 miles and 14 hours, not to mention I didn't even start the trip with a full battery.

Related

Charge drops to 90% straight away!

In the morning, I take the phone off charge at 100%, and it will then drop to 90% within the first 5mins (with no use)
Sometimes it charges until 90% and the light goes green and it does not continue charging to 100%.
To fix this I have to take out the charger and put it back in, it then charges to 100% like it should.
Anyone else have this problem? Its really inconvenient, if its not a software issue, should I cal t-mobile to have the battery replaced?
Thanks
I'm not sure but try this: uplug the power, restart the phone and then charge it and see if fully goes through.
Someone here once wrote that if he restarts the phone while charging it (he was talking about the Hero btw) it doesn't register the correct battery charge!
Just a thought. If that doesn't work then call them to replace the battery/phone.
I read somewhere else that the phone does not trickle charging once it is full, so what is probably happening is the phone fully charges, then gradually loses some of its charge, though I'm not 100% on that.
Ah just found the link where I read about the charging issue http://forum.xda-developers.com/showthread.php?t=658338
I have seen mine do the same (once) except it went from 100% to 91% - literally in seconds though.
Some have said it's a bug in the Android OS (?)
I found updating to fw .11 has made a difference for me.
I also removed Sky Sports news app ( not sure if coincidence that it's ok again since doing both those)
May install Sky app again to see.
Sometimes apps can cause problems.
How do you check the specific level of the battery? i tried pressing it in the top bar but nothing....
Matt2887 said:
How do you check the specific level of the battery? i tried pressing it in the top bar but nothing....
Click to expand...
Click to collapse
Go to Menu > Settings > General info & option > Battery information.
choccy31 said:
I found updating to fw .11 has made a difference for me.
I also removed Sky Sports news app ( not sure if coincidence that it's ok again since doing both those)
May install Sky app again to see.
Sometimes apps can cause problems.
Click to expand...
Click to collapse
Yep, upgrading the firmware and removing apps can improve battery performance.
I would suggest you pull out the battery a few times and then try a full discharge/charge to reset the digital circuit of the battery to improve the state-of-charge estimation.
Mastoid said:
Yep, upgrading the firmware and removing apps can improve battery performance.
I would suggest you pull out the battery a few times and then try a full discharge/charge to reset the digital circuit of the battery to improve the state-of-charge estimation.
Click to expand...
Click to collapse
Hello, I will try a complete battery drainage, til it wont switch on, and then see if it is fixed.
So far my full drains have been to 1%.
I will report back
choccy31 said:
I found updating to fw .11 has made a difference for me.
I also removed Sky Sports news app ( not sure if coincidence that it's ok again since doing both those)
May install Sky app again to see.
Sometimes apps can cause problems.
Click to expand...
Click to collapse
I've been looking for the sky sports news app and I can't find it in the marketplace anywhere. I've got it on my old hero?
where did you get the app?
Just type sky news in market.
Ny phine only charged to 98 last night its now 94% after 20 mins. I hot it up to 100 but that quick a drop is not right. It's now 92%!
Ok, so last night I ran my phone down til it switched off, switched it on again and waited for it to turn off. I did this continuously til the power button no longer worked. I then took out the battery and replaced it. Then I put it on charge without having the phone switched on.
Turned the phone on today and it was at 99%. Its now 95% so the charge seems weak, but it seems to have improved since the 90%?
Maybe after a few more full calibrations it will be fine. I will try this for another couple of days and see if it helped.
After 2 days of running it down to 0 and charging while switched off, I got good battery life with the charge holding up to 100% quite well
So today I decided to charge it while it was switched on, and it charged to 100%, a couple of minutes later and its below 90% again!
I don't know why this is happening because it seems to work fine when charged while switched off, but not when its on.
What should I do?
I don't know why this is happening because it seems to work fine when charged while switched off, but not when its on.
What should I do?
Click to expand...
Click to collapse
Exactly same thing happened with mine this morn and I definitely became alarmed. It only charged to 99% when on and the charge fell very fast to 90% within 40mins of just standby - not even WiFi on.
So then I charged it to 99% while on and then switched it off disconnecting and reconnecting the charger. Turning it on 5mins later, it was back at 100% again. Browsed web using WiFi and updated all apps and widgets for 22mins continuous before it dropped to 99% this time. Been fine since.
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk
th3 said:
Exactly same thing happened with mine this morn and I definitely became alarmed. It only charged to 99% when on and the charge fell very fast to 90% within 40mins of just standby - not even WiFi on.
So then I charged it to 99% while on and then switched it off disconnecting and reconnecting the charger. Turning it on 5mins later, it was back at 100% again. Browsed web using WiFi and updated all apps and widgets for 22mins continuous before it dropped to 99% this time. Been fine since.
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk
Click to expand...
Click to collapse
Was it fine the next day?
I did a factory reset and it did not fix the issue, I will try this and if it does not work this time I will get mine replaced! (or a new battery?)
Was it fine the next day?
Click to expand...
Click to collapse
Yup. As good as before.
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk
interesting because I can't seem to get rid of mine!
T-mobile think its a problem with my battery and are sending me a new battery to see if that fixes the issue. I will post back with an update on the topic when I get the new battery in a few days.
On the phone keypad, if you dial *#*#4636#*#*, you will be taken to a testing menu. In this menu there are options to see phone and battery information as well as usage statistics for apps.
After 2 days of running it down to 0 and charging while switched off, I got good battery life with the charge holding up to 100% quite well
So today I decided to charge it while it was switched on, and it charged to 100%, a couple of minutes later and its below 90% again!
I don't know why this is happening because it seems to work fine when charged while switched off, but not when its on.
What should I do?
Click to expand...
Click to collapse
Same for me. I don't really want to have to always charge it with the phone off. Very annoying.
interesting because I can't seem to get rid of mine!
Click to expand...
Click to collapse
Same thing I described above repeated itself this morn except that the charge dropped to 93% within 12mins this time - on standby with airplane mode and no WiFi or Bluetooth enabled. However, It's held steady after that. I poll battery charge, voltage, temperature and usage levels using the Testing notification icon (I use the BarControl app).
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk

[Q] samsung galaxy s3 charging problem

Hi,
Ive been having problems while charging my phone. Usually i charge my phone from 11 pm to 7 am and sometimes when i wake up in the morning the battery light is green and it reads as 100% battery charge but the moment i disconnect the wire it instantly drops to 30-50%. Is anyone else having these issues?
Are you stock?
I have not had this problem and charge pretty much same as you. I am stock rooted with a few apps disabled and only had the phone since October.
Try this app
Also I'm pretty sure you shouldn't let it charge for so long, it will hinder you battery life in the long run. At least that's what I have read.
lt1camaro said:
Hi,
Ive been having problems while charging my phone. Usually i charge my phone from 11 pm to 7 am and sometimes when i wake up in the morning the battery light is green and it reads as 100% battery charge but the moment i disconnect the wire it instantly drops to 30-50%. Is anyone else having these issues?
Click to expand...
Click to collapse
Option 1 : Clear battery stats
Option 2 : Get a new battery and 24 hour charge
Option 3 : Let the battery DIE, drop it in the freezer for a few hours, then 12 - 24 hour charge it again. Doing this though MAY (not always does) cause the water indicator to trip. Easiest solution I found for that was I vacuum sealed my battery THEN dropped it in the freezer. No air, no moisture, no trip.
kirkgbr said:
Are you stock?
I have not had this problem and charge pretty much same as you. I am stock rooted with a few apps disabled and only had the phone since October.
Click to expand...
Click to collapse
Yes i am running stock
jgaf said:
Try this app
Also I'm pretty sure you shouldn't let it charge for so long, it will hinder you battery life in the long run. At least that's what I have read.
Click to expand...
Click to collapse
I would also recommend trying this app. I tried it out a few days ago and it does seem to help out quite a bit.
I find mine drops instantly to 99%. Even sometimes when I'm at 74% and if I don't use it at all, I will check back and it goes up to 78% :-/

[Q] Battery drop after reboot?

I've been experiencing huge battery drops (from 10% up to 20%) after I reboot my phone. Is this a KitKat issue or is it my battery?
In the morning from 99% (after checking a few messages in the morning), I rebooted and I dropped 11% to 88%.
I think It may have been my battery giving me the huge drops. I don't seem to have this issue any more after buying a new one. :good:
I didnt found it on reboots, but i have this problem when i enter recovery. 20 minutes in recovery - i dont hace 20% of battery.
artur1131 said:
I didnt found it on reboots, but i have this problem when i enter recovery. 20 minutes in recovery - i dont hace 20% of battery.
Click to expand...
Click to collapse
Hmmm that's strange.
I've noticed it usually drops more when I leave my headphones in.
full loaded ACE 2.
reboot cost u 5%
first 10 % gone in a few minutes for heavy users and in a few hours when deepsleep !!
what i wanna say.
the first 10 % gone in a few.
after that normal drain.
I often get this, although not as bad. I usually lose 2-5% on a reboot, sometimes up to 10%. The other week I charged it to 100% when it was off, turned it on and had 92%.
so is this actually a problem or is it normal for everyone?. Mine looses 5-8% in the first couple of minutes after I unplug the charger..
It's normal.
Sent from my GT-I8160 using Tapatalk
edithswanneck said:
I often get this, although not as bad. I usually lose 2-5% on a reboot, sometimes up to 10%. The other week I charged it to 100% when it was off, turned it on and had 92%.
Click to expand...
Click to collapse
Same experience. Around 5% to 10% is lost during my reboots.
ulalume said:
so is this actually a problem or is it normal for everyone?. Mine looses 5-8% in the first couple of minutes after I unplug the charger..
Click to expand...
Click to collapse
Its normal. I usually lose the first 5% of a full charge in a couple of minutes. After it gets to 95%, battery charge will drain normally depending on usage.
Vino Kulafu said:
Same experience. Around 5% to 10% is lost during my reboots.
Its normal. I usually lose the first 5% of a full charge in a couple of minutes. After it gets to 95%, battery charge will drain normally depending on usage.
Click to expand...
Click to collapse
ok then, thanks...I just thought that this didn;t happen when I was on GB, but it doesn;t matter anyway..
If I reboot once, I will lose between 5 - 10% battery. However, if I reboot straight after the first reboot, I will lose between 0 - 2% battery. I've never really understood this.
Sent from my GT-I8160 using XDA Premium 4 mobile app
Phone need more energy for reboot, that causing the drain. Mine usually drop 2-5%. After recharge battery alsi drop to 95-92% fast. Thats normal
Sent from my GT-I8160 using xda app-developers app
Battery Charging Issue
Is this normal?
When I charge my battery whether it be from mains or USB computer it charges ok, but as soon as it gets to 100% it still says charging for a little time and doesn't report the unplug charger message right away.
With the Jellybean 4.1.2 system I don't get the alert tone when the battery reaches FULL, therefore I have a feeling that when it still says charging even though it's showing 100% that it's actually decreasing power at that point, any help please?
I have tried other batteries, and one in particular goes from 90% right up to 100% and seems to miss that last 10 percent, so I don't use that one now.
I have the most current firmware installed.
Buy a new one
Sent from my GT-I8160
pbgrout said:
Is this normal?
When I charge my battery whether it be from mains or USB computer it charges ok, but as soon as it gets to 100% it still says charging for a little time and doesn't report the unplug charger message right away.
With the Jellybean 4.1.2 system I don't get the alert tone when the battery reaches FULL, therefore I have a feeling that when it still says charging even though it's showing 100% that it's actually decreasing power at that point, any help please?
I have tried other batteries, and one in particular goes from 90% right up to 100% and seems to miss that last 10 percent, so I don't use that one now.
I have the most current firmware installed.
Click to expand...
Click to collapse
when it says 100%, you still have to wait for a few minutes before it displays the green "full" icon in the upper left corner and asks you to disconnect the charger.
However, the first 5-8% always drains REALLY fast and not proportionally to the rest of the battery drain...
I think It may have been my battery giving me the huge drops. I don't seem to have this issue any more after buying a new one.
ItsHumf said:
I think It may have been my battery giving me the huge drops. I don't seem to have this issue any more after buying a new one.
Click to expand...
Click to collapse
what about the initial drain? does the first 10% still drop fast or has this changed too with the new battery?
I just wish that JellyBean 4.1.2 would give an alert sound when the battery has reached it's full limit like Gingerbread used to do.
Who would be the best place to ask them to do this on their next update?
But I think that it does..a very short one indeed, but it does, along with the screen lighting up briefly..
ulalume said:
But I think that it does..a very short one indeed, but it does, along with the screen lighting up briefly..
Click to expand...
Click to collapse
Doesn't make a sound on my phone and im not always looking at my phone to see it light up.
I have sounds all turned on and on full volume so no reason why I dont hear a sound when its reached full capacity.
ItsHumf said:
I've been experiencing huge battery drops (from 10% up to 20%) after I reboot my phone. Is this a KitKat issue or is it my battery?
In the morning from 99% (after checking a few messages in the morning), I rebooted and I dropped 11% to 88%.
I think It may have been my battery giving me the huge drops. I don't seem to have this issue any more after buying a new one. :good:
Click to expand...
Click to collapse
are you using custom battery ? like double-powered-battery

Battery can not be fully charged - 8.4

I left my 8.4 charged with the wall charger over night, in the morning I found it's only 94% full, this happened multiple times, and I also tried another wall charger it still happened. The battery chart shows it stopped at 94% (some times 95%) and never went up. Does anybody has the same problem? Is there anything wrong with the battery? BTW, the battery life is not good for me, screen on for only 5-6 hrs on about 30% brightness.
debugger919 said:
I left my 8.4 charged with the wall charger over night, in the morning I found it's only 94% full, this happened multiple times, and I also tried another wall charger it still happened. The battery chart shows it stopped at 94% (some times 95%) and never went up. Does anybody has the same problem? Is there anything wrong with the battery? BTW, the battery life is not good for me, screen on for only 5-6 hrs on about 30% brightness.
Click to expand...
Click to collapse
Stock rom?
anything running that could be consuming power?
Sent from my SM-T320 using Tapatalk
dottat said:
Stock rom?
anything running that could be consuming power?
Sent from my SM-T320 using Tapatalk
Click to expand...
Click to collapse
debugger919 said:
I left my 8.4 charged with the wall charger over night, in the morning I found it's only 94% full, this happened multiple times, and I also tried another wall charger it still happened. The battery chart shows it stopped at 94% (some times 95%) and never went up. Does anybody has the same problem? Is there anything wrong with the battery? BTW, the battery life is not good for me, screen on for only 5-6 hrs on about 30% brightness.
Click to expand...
Click to collapse
I have the same problem.
dottat said:
Stock rom?
anything running that could be consuming power?
Sent from my SM-T320 using Tapatalk
Click to expand...
Click to collapse
stock rom, not rooted. I doubt it's caused by any app, if in that case the battery should still be fully charged then go down, but it's not what I saw.
dansafe said:
I have the same problem.
Click to expand...
Click to collapse
Yes that's exactly the same as mine. I contacted Samsung support and they suggested to do a factory reset to see if it's a problem about software, otherwise I'll need to file a service request.
This happens all the time. If I reboot the tab will then show 100%.
Sent from my SM-T320 using Tapatalk
laestrella said:
This happens all the time. If I reboot the tab will then show 100%.
Sent from my SM-T320 using Tapatalk
Click to expand...
Click to collapse
same problem here...tab will only charge to 84% and a restart dont work.
ik will try to do al factory reset.
michel242 said:
same problem here...tab will only charge to 84% and a restart dont work.
ik will try to do al factory reset.
Click to expand...
Click to collapse
Let it run down to 10% then recharge. do this a couple cycles. You could also try a battery calibration app that wipes the stats and starts fresh.
Solved my issue a while back.
A restart used to fix my issue but now the tab will say it's 100% charged and then at some point drop 10 or even 40% randomly.
Something is definitely wrong with the battery on this thing.
it's not the battery, but the reporting statistics used that is bugging out.
storino03 said:
it's not the battery, but the reporting statistics used that is bugging out.
Click to expand...
Click to collapse
Is there any way to fix this? If it's fully charged then it should show 100%.
I have the same issue, read here:
http://forum.xda-developers.com/showthread.php?t=1215182
I found the problem has become worse and worse, sometimes it just stopped at 30~40%, then I said "f*** it", opened the back cover, pulled the battery out and put it back, reboot. Left it charged during the night. The next morning I found it charged to 100% !! Will post back if it really solved the issue after some more cycles.
debugger919 said:
I found the problem has become worse and worse, sometimes it just stopped at 30~40%, then I said "f*** it", opened the back cover, pulled the battery out and put it back, reboot. Left it charged during the night. The next morning I found it charged to 100% !! Will post back if it really solved the issue after some more cycles.
Click to expand...
Click to collapse
I simply let the battery drain to around 20% and then charged it fully. Ever since (1.5 months ago), it has been reporting accurate battery %.
storino03 said:
I simply let the battery drain to around 20% and then charged it fully. Ever since (1.5 months ago), it has been reporting accurate battery %.
Click to expand...
Click to collapse
But the problem was the battery could not be charged to 100%, even if I left it charged over night, in the morning it showed 30%.
Mine works 100% perfect on ND3..
I have tried to make it do somthing weird..
I can't see anything in the ROM coding so far that would cause this..
So over a week later and my battery has been perfect.. Stock rooted nai....
4hrs 40 mins of screen on too..
Hi. I dont know if anyone is still on this post but i have this device and ive had this problem for the last year. It would get so bad with all the discharges that my battery died. I bought another battery and replaced it. I still got -300ma when connected to a 1A chaarger. So i replaced the flexi usb port membrane in hopes that would do it but i only got to 100mA. I bought a 2.4A charger and the tab doesnt even recognize the charger is in. Cant really turn it for service because I rooted it so my warranty is void. Any commentary and opinion would be greatly appreciated.:good:

Won't charge to 100%

Anyone having an issue with their phone only charging to 98%? It will only each 100% if I unplug it for a bit once it reaches 98% and then plug it back in.
saragez said:
Anyone having an issue with their phone only charging to 98%? It will only each 100% if I unplug it for a bit once it reaches 98% and then plug it back in.
Click to expand...
Click to collapse
No issue here.
Sent from my Google Pixel 2 XL using XDA Labs
saragez said:
Anyone having an issue with their phone only charging to 98%? It will only each 100% if I unplug it for a bit once it reaches 98% and then plug it back in.
Click to expand...
Click to collapse
not seeing that on mine.
It does this by design. It prevents battery damage and prolongs battery life (in terms of life expectancy and usability over years).
http://www.androidpolice.com/2010/1...bump-charging-and-inconsistent-battery-drain/
I've had the 98% issue since day 1. I've never seen 100%. It appears to be a very rare issue. Otherwise my battery performance is great!
jordanl17 said:
I've had the 98% issue since day 1. I've never seen 100%.
Click to expand...
Click to collapse
Even with overnight charging?
Sent from my Pixel 2 XL using Tapatalk
Yep, wake up, look at phone: 98%.
jordanl17 said:
Yep, wake up, look at phone: 98%.
Click to expand...
Click to collapse
That's really strange!
Sent from my Pixel 2 XL using Tapatalk
that happened top me on my first charge
just give it a couple charges it will start going to 100
I have to say battery life is great for me on pixel 2 xl. every time i charge it will go all the way to 100 %.
Hmm, I've charged it overnight for awhile now and it still won't get to 100%. It'll say that it's fully charged but will just show 98%
Experienced the same thing on my Pixel 2 XL. I did manage to fix it by powering the phone off for 10mins with it plugged in/charging. Once rebooted it showed 100%. Otherwise it will stay at 98 or 99% forever...
Strange thing happened yesterday. It finally charged to 100% and 5 minutes later I unlock the phone and its back down to 99% while still plugged in to the OEM wall charger (showing charging rapidly).
Copy and paste from my post in the Real Life Review section:
I would leave my 2 XL charging overnight (stock charger and cable) and when I wake up around 7-8 hours later, the percentage would either be 97%, 98%, or 99%. I've rarely seen my phone go to 100% since getting it on the 18th.
Whenever the battery hits 50% and I go and charge it mid-day, it would take a painfully long time to charge up after around the 85% mark (the general consensus and expected). I would check and it would be at 99%. After around 10 minutes, I check again and it shows 98%.
Needless to say, I disabled "show battery percentage". If the battery icon is full, then it's 100% to me.
I have this with my 2 xl too. It'll stop at 98-99, and if I unplug/plug back in a few times or reboot a few times it'll eventually get to 100. But it'll drop from 100 only after a few minutes even unused. Not sure if by design or a minor hardware issue.
Mine was charging overnight to 100% now for the last 2 or 3 days it's only been going to 98% overnight. Battery life is still good though.
I was wondering of was something to do with Battery Stats, maybe needs cache cleared or resetting somehow.
Actually I cannot even get mine to charge to 100%
saragez said:
Anyone having an issue with their phone only charging to 98%? It will only each 100% if I unplug it for a bit once it reaches 98% and then plug it back in.
Click to expand...
Click to collapse
Actually I cannot get mine to charge to 100 percent except two charges ago. That being said there must be something wrong as using the white charger and cable to go from 2% - 98% it took more than 5 hours ! I cannot get it to go past 99 % and I have been charging with phone off then with on and then according to Google support tried safemode but still no difference. Highly frustrating for a $1k phone. I finally shut phone off for the last 20 minutes and then checked the charge and it is now at 100% but what a battle and a SLOW SLOW charging phone.
I never charge mine to 100%, I usually take it off the charger around 85%. Not had any battery problems, don't think it's ever necessary to hit 100%.
I've had the opposite. Wake up it's 100. Listen to music on the way to work for about an hour (bluetooth). When I get there it is still 100 percent. Put it in pocket for another hour, check phone, 96%.
I turned off my phone when plugging it in last night hoping to make this go away.
When I turned it back on this morning... still only 98%...
saragez said:
Anyone having an issue with their phone only charging to 98%? It will only each 100% if I unplug it for a bit once it reaches 98% and then plug it back in.
Click to expand...
Click to collapse
yes, mine started around a week ago (black 64GB) today as soon as i unplugged it dropped to 98% used it for a minute n it went to 95% sometimes the phone wont even charge to 100%

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