Develop Bugs

Very poor battery despite reviews?

Had my Note 2 since Saturday and the battery seems really poor to think everyone reviewing them said they were fantastic.
Day 1 from full charge to 2% I had 1 day 8 hours
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Day 2 from full charge to 6% I had 17 hrs 10 mins
Don't seem to have any rogue apps from battery monitors I've tried which makes sense as I've only downloaded about 10 apps.
Always have WiFi and GPS on which I always do on any phone, and have auto brightness off and set manually to just under half way.
I have dropbox set up to automatically upload camera pictures but under battery monitor this only uses 0.5% of battery use.
I also seem to have a faulty S Pen which sometimes seems too sensitive as it'll draw or open menus/apps with the pen about 1cm from the screen, and other times the pen doesn't recognise the air/hover mode and I have to press firmly to draw.
Any ideas?
Between this and the over sensitive S Pen, I'm beginning to think I just have a faulty phone!?
If it was as easy as taking it to a store I would, but I received it free with a 2 year contract from an online company in the UK called Affordable Mobiles who seem to have pretty good reviews. They've said if I want an exchange or them to have a look at it I'd have to send it back and wait 2-3 days which I can't do really as I don't have a spare phone - but at the same time I don't want to start rooting the phone and messing about with launchers if it is a fault.
Thanks

Turn off gps. Thats sucking away your battery mate. Turn it on only when u need it.
Sent from my GT-N7105 using xda app-developers app

Re: Battery Issue
macklinjudith1 said:
I'm beginning to think I just have a faulty phone!
Click to expand...
Click to collapse
IMO, to get more than 1 day with WiFi & GPS constantly on is good. On my Note 2, I am usually left with around 30% of battery left at the end of the day but I never have GPS turned on unless I need it, only my WiFi is on.
CM

macklinjudith1 said:
I'm beginning to think I just have a faulty phone!
Click to expand...
Click to collapse
So why are you posting this exact same message in multiple threads without explanation?

Try resetting the phone and check it for another day without installing any third party apps if it gives the same result that it must be a faulty phone. Hope it helps.
Sent from my GT-N7100 using xda premium

Thanks guys, I'll try resetting it as suggested and see how it goes for a day or two.
Hope it's just me expecting too much cos I love the phone otherwise and don't want to send it back lol

You didn't mention what screen time you had, that's the most important of all...
Sent from my GT-N7100 using Tapatalk 2

adytum said:
You didn't mention what screen time you had, that's the most important of all...
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
Not sure how you find that out tbh, all I can see is that percentage bar under the battery that I posted

CaptnSpaulding said:
Not sure how you find that out tbh, all I can see is that percentage bar under the battery that I posted
Click to expand...
Click to collapse
You just press the screen icon in the stats.
Sent from my GT-N7100 using Tapatalk 2

Awh man, how dumb do I feel! haha
So far today I've had 2h 18m on battery with 24m15s screen on time and battery is at 94%

CaptnSpaulding said:
Awh man, how dumb do I feel! haha
So far today I've had 2h 18m on battery with 24m15s screen on time and battery is at 94%
Click to expand...
Click to collapse
Happens
You should judge your battery stats from your screen on time. Regular usage with sync and wifi and data enabled should get you between 5 and 8 hours, but it's possible to reach 10 and beyond with low brightness and no connectivity. If it's below 4, you can start thinking that something is wrong if you didn't do any crazy gps navigation or something, and start from there.
Sent from my GT-N7100 using Tapatalk 2

I always get under 4 hrs on screen with my 7105
Sent from my GT-N7105 using xda premium

Well, mine can lasts up to 2 days with Wifi turned on when I'm awake. Also I have roughly 5 hours screen on time on average. Quite achievable with heavy debloating of the ROM and using custom kernel and probably with some undervolting done too.
P/S it's my first Android. Still learning. Please correct if I'm wrong :fingers-crossed::fingers-crossed::fingers-crossed:

So far on my third day I have 10% left with 1d 5h on battery and 5h 13m screen on time.
Regarding issue I mentioned about the S Pen, Samsung are sending me a new one to try and rule out the phone

nothind wrong with your battery 5 hours screen on is good don't worry everything is fine
omega rom v10, kalgas, neak 1.3

Battery Life

Guys, im using Enchanced 2.3.6 with adrenaline engine, and , in 5 minutes playing "Parking Challenge" , battery went from 80 to 20.
Is that normal ?
Battery just lasts not even a full day ... without using wi-fi ...
thanks,

anjos23 said:
Guys, im using Enchanced 2.3.6 with adrenaline engine, and , in 5 minutes playing "Parking Challenge" , battery went from 80 to 20.
Is that normal ?
Battery just lasts not even a full day ... without using wi-fi ...
thanks,
Click to expand...
Click to collapse
That's not normal. You need to calibrate the battery. There is several ways to do that. 1. Fully discharge the phone and then let it charge to 100% without break. 2. Use Die-Hard Battery Calibrator (search it).
Regards
The Phone

Thanks, I will try that. Its possible the battery become worn out ? Because I was thinking in buying a new "gold battery" with 2450mha.
thanks,:laugh:

anjos23 said:
Thanks, I will try that. Its possible the battery become worn out ? Because I was thinking in buying a new "gold battery" with 2450mha.
thanks,:laugh:
Click to expand...
Click to collapse
Yeah it is possible, but how long have you used it?

X-zone said:
Yeah it is possible, but how long have you used it?
Click to expand...
Click to collapse
Well, the phone will make 2 years in September, im using it about 20 months ago.

Just followed your advice of wipe battery stats, guess what ? Phone is on 4 hours ago, full brightness, and i've just sent a couple messages , battery level is 52% ...
Something is wrong out here

anjos23 said:
Just followed your advice of wipe battery stats, guess what ? Phone is on 4 hours ago, full brightness, and i've just sent a couple messages , battery level is 52% ...
Something is wrong out here
Click to expand...
Click to collapse
Did you use it 4 hours with the screen on? The battery stats understandable if you have done that, but otherwise I would recommend you to buy a new battery.
BTW: 1. Have you installed some tweaks? Try to reinstall the ROM. 2. Maybe the game you told us before is using 100 % cpu both when it being used and when the screen is off. Check that with CPU Spy.

I have almost the same problems as you. The phone discharges 40% in like 10 minutes when playing a low graphics game or browsing web. But for me it freezes at a value. For ex: the battery goes from 80% to 40% in 10 minutes than stops at 40% for 20 minutes and so on. I am using Oldroid's CM10.1. I've just reflashed it. And this is my second battery.

X-zone said:
Did you use it 4 hours with the screen on? The battery stats understandable if you have done that, but otherwise I would recommend you to buy a new battery.
BTW: 1. Have you installed some tweaks? Try to reinstall the ROM. 2. Maybe the game you told us before is using 100 % cpu both when it being used and when the screen is off. Check that with CPU Spy.
Click to expand...
Click to collapse
No, screen was on just 30min . I've flashed Adrenaline Engine .. I've checked already, got 4.30h in deepsleep , 25min 245mhz and 14min in 800mhz ...
I think im gonna buy a new battery.
Thanks

anjos23 said:
No, screen was on just 30min . I've flashed Adrenaline Engine .. I've checked already, got 4.30h in deepsleep , 25min 245mhz and 14min in 800mhz ...
I think im gonna buy a new battery.
Thanks
Click to expand...
Click to collapse
No problem

I've got a similar problem. I've installed Jelly Bread v3.5.1 by saldymhmd and Alfisyahrien. I charge the battery until it is 100% charged, then when unplugged it lasts about 30 minutes before the rom shuts down because of the 'low battery status', but if I plug the charger just after that, the battery indicator shows that it is about 85-90% charged, but if I unplug it and turn the phone on, rom still says the batery is low. I tried to wipe battery stats and to calibrate battery using the option in CM settings, but with no avail. Any ideas how to fix the problem? Would the Die-Hard Battery Calibrator fix this?
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Nidrax said:
I've got a similar problem. I've installed Jelly Bread v3.5.1 by saldymhmd and Alfisyahrien. I charge the battery until it is 100% charged, then when unplugged it lasts about 30 minutes before the rom shuts down because of the 'low battery status', but if I plug the charger just after that, the battery indicator shows that it is about 85-90% charged, but if I unplug it and turn the phone on, rom still says the batery is low. I tried to wipe battery stats and to calibrate battery using the option in CM settings, but with no avail. Any ideas how to fix the problem? Would the Die-Hard Battery Calibrator fix this?
Click to expand...
Click to collapse
That's exacly what happens with me, i've already bought a battery from eBay, im just waiting for the delivery. I'll test it, and say something here in a few weeks. Keep tuned

[Q] Very strange battery behavior.

Hi all... first post, first problem with android... and hopefully a long time here in xda!
So I have the T320 (8.4 pro) and I have a strange problem with my battery. Is not only that it lasts no more than 4 hours (screen), the problem come by low and high battery %.
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By low, the table shuts down and after starting it again, it shows between 5 and 10% battery!!
Something similar happens by charging... it shows 90% and no change... and after a reboot it shows 100%.
Is my battery dying? Should I wipe and restart from zero? Cyanogen?
The speed how fast battery drains is also extreme compared to stand-by times... but I assume this is more or less a problem of this tablet.
Many thanks in advance!

parseval43 said:
Hi all... first post, first problem with android... and hopefully a long time here in xda!
So I have the T320 (8.4 pro) and I have a strange problem with my battery. Is not only that it lasts no more than 4 hours (screen), the problem come by low and high battery %.
By low, the table shuts down and after starting it again, it shows between 5 and 10% battery!!
Something similar happens by charging... it shows 90% and no change... and after a reboot it shows 100%.
Is my battery dying? Should I wipe and restart from zero? Cyanogen?
The speed how fast battery drains is also extreme compared to stand-by times... but I assume this is more or less a problem of this tablet.
Many thanks in advance!
Click to expand...
Click to collapse
Having similar issues. Found mine dead out of nowhere one day. Never had custom ROM on it. Did factory reset now it seems like it doesn't want to charge .... Charges VERY slowly if at all.
Sent from my SM-G900T using XDA Free mobile app

i have the same issue, dropped from 50 to 15 all of a sudden , will try calibration , anyone else noticed this ?i picked up mine used so unsure whats the issue

i found better battery life after i did a factory reset. i bought it new and set it up and since then had 1 Sammy update but last week i reset it and it clearly made a difference on my 10.1. yesterday i had 2 hours screen time and on battery for 2 day and some hours and had 60% left.

Add mine to the list....seems to be doing the same thing here. Haven't been able to sort it out yet.

Took the back off mine tonight and reseated the battery connector. Then charged like below. First to time in a while it charged up like this.

can you post a pic of videos of how to pry it open ? hopefully simple with a prying tool

cletusarrarr said:
can you post a pic of videos of how to pry it open ? hopefully simple with a prying tool
Click to expand...
Click to collapse
I just very carefully went around it with one of those guitar like plastic openers i have laying around from the many tablet/phone repair kits i have used. I probably rebooted it 5 times before i finally popped it apart... thing just did not want to charge. This was the first time i saw it ramp up 1% at a time in a while. The other thing i noticed it was doing was jumping from ~70% to 100% instantly.... The graph showed it too. I didn't believe that was really happening.

some pics would help , is it between the screen and the metallic part or the back and the metallic part ?

cletusarrarr said:
some pics would help , is it between the screen and the metallic part or the back and the metallic part ?
Click to expand...
Click to collapse
No. The faux leather cover comes off.
This... http://forum.xda-developers.com/showthread.php?t=2710711
pro 8.4 Teardown

hasnt mentioned there how to open it tho

cletusarrarr said:
hasnt mentioned there how to open it tho
Click to expand...
Click to collapse
Yup... like i said.. guitar pick opener and gently popping the faux leather back off. Its not like removing an LCD from a phone.

cletusarrarr said:
hasnt mentioned there how to open it tho
Click to expand...
Click to collapse
Opened mine up because of the battery charging stalls and reseated my battery. I bought this tab 2 weeks ago used and this is the first time it has charged to 100 without me forcing it too! Its def worth doing if ur battery stalls!!

strive53 said:
Opened mine up because of the battery charging stalls and reseated my battery. I bought this tab 2 weeks ago used and this is the first time it has charged to 100 without me forcing it too! Its def worth doing if ur battery stalls!!
Click to expand...
Click to collapse
Mine has been really good now for days too...any hint of battery probs are gone!
I suspect an app did this too. I was on cm when it started...others were stock. Chrome or some other common Google app put our tabs in a funky state.

Replaced Battery twice...strange behavior

I ordered a new OEM battery. Replaced the original. The phone charges normally to 100%, but during use it gets to 20% and shuts off due to low power. Just shuts down. You have to plug it in for about 5 mins before you can even turn it on again. when it comes on it is at 1%. I went back to the provider and complained that he sent me a bum battery....they sent me another....same issue! So I think its a calibration problem.
Anyone have ideas?

where did you buy the battery ?.... sounds like a knockoff battery problem

cwoodffr said:
I ordered a new OEM battery. Replaced the original. The phone charges normally to 100%, but during use it gets to 20% and shuts off due to low power. Just shuts down. You have to plug it in for about 5 mins before you can even turn it on again. when it comes on it is at 1%. I went back to the provider and complained that he sent me a bum battery....they sent me another....same issue! So I think its a calibration problem.
Anyone have ideas?
Click to expand...
Click to collapse
Well, did u try to recalibrate it?

Boosted_01 R said:
where did you buy the battery ?.... sounds like a knockoff battery problem
Click to expand...
Click to collapse
I don't think its a knock off. Vendor has also been great in replacing.
http://www.ebay.com/itm/100-Origina...Q-/271420199825?ssPageName=ADME:X:RTQ:US:1123

AndreIrawan97 said:
Well, did u try to recalibrate it?
Click to expand...
Click to collapse
The only reference I can find to xperia battery recalibration are steps that are for versions with removable batteries or steps that don't work on the ZL (one set of actions including holding the power button and up volume for 10 secs where there is no response from the phone)
Do you know of any process for ZL that is not root required?

cwoodffr said:
The only reference I can find to xperia battery recalibration are steps that are for versions with removable batteries or steps that don't work on the ZL (one set of actions including holding the power button and up volume for 10 secs where there is no response from the phone)
Do you know of any process for ZL that is not root required?
Click to expand...
Click to collapse
Have u try to use an app called "Battery Calibration" or something like that?
U need root to do it

I bought this one.
http://www.ebay.com/itm/Internal-Li.../191109145386?ssPageName=ADME:L:eek:C:US:3160
Used for 2 weeks. It works as original so far.

These 100% OEM batteries you see selling on Ebay are 99.9% fake.... its luck if you get them to work and if you do, be glad if you get more than a month out of it.... Get a proper battery from Sony... Ebay is good for a lot of things.... batteries are not one of those things, been there done that lol

cwoodffr said:
I ordered a new OEM battery. Replaced the original. The phone charges normally to 100%, but during use it gets to 20% and shuts off due to low power. Just shuts down. You have to plug it in for about 5 mins before you can even turn it on again. when it comes on it is at 1%. I went back to the provider and complained that he sent me a bum battery....they sent me another....same issue! So I think its a calibration problem.
Anyone have ideas?
Click to expand...
Click to collapse
i have the same problem as yours,100% same but it happened to me after installing custom rom on android 4.3..
battery jump from 20% to 0% immediately.. with no mercy, phone shuts off at any cost and start again at 1% after turned on and charged.
i still use the original battery (not replaced it yet) and in battery health test said it's good, no need to replace it.
now i'm trying to find the fix by myself.. maybe i have messed up something with my phone..

Here's an update of my device..
Finally, no need to wait for 20% or below to shuts off..
This problem become more critical to my device, somebody help me!
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The right side of the graph show battery drops immediately from 50% to 0%.. No Mercy
Sent from my C6503 using XDA Free mobile app

Same with me after reboot from recovery
Sent from my Xperia ZL using XDA Free mobile app

daniLaLaLaLaLa said:
Here's an update of my device..
Finally, no need to wait for 20% or below to shuts off..
This problem become more critical to my device, somebody help me!
View attachment 2882472
The right side of the graph show battery drops immediately from 50% to 0%.. No Mercy
Sent from my C6503 using XDA Free mobile app
Click to expand...
Click to collapse
Do you still have the problem?

cwoodffr said:
Do you still have the problem?
Click to expand...
Click to collapse
Yup, but not worst as before after i let it discharge and charge again about 4 times. Now it's off by itself if battery reach 25 and below..
Sent from my C6502 using Instagram

Boosted_01 R said:
.... Get a proper battery from Sony...
Click to expand...
Click to collapse
Does Sony even sell "proper" batteries? I'm pretty sure would would have to send the phone in for an expensive repair.

23-10 said:
Does Sony even sell "proper" batteries? I'm pretty sure would would have to send the phone in for an expensive repair.
Click to expand...
Click to collapse
Yes I would be interested in obtaining an "official" replacement battery just in case if at all possible. How difficult is the replacement?

Update 4.4.4 solved my battery problem.. See the graf, it's drop normaly now.
Sent from my C6502 using Instagram

daniLaLaLaLaLa said:
Update 4.4.4 solved my battery problem.. See the graf, it's drop normaly now.
View attachment 2932917
Sent from my C6502 using Instagram
Click to expand...
Click to collapse
Upgrade to 283 over the air seemed to reset the battery calibration. Now runs right to 0 before shutting down. Still no hell from a total battery life perspective but at least its not shutting down at 12% like it was.

Battery problem tab s 8.4 lte

Hi, i have a tab s 8.4 lte stick rooted and running skyhigh kernel, after my tablet automatically turn off because it run out of battery, but after i boot it up right after the battery is showing 15%, is this normal and should i calibrate my battery?
Thank you in advance

R.A.G.E said:
Hi, i have a tab s 8.4 lte stick rooted and running skyhigh kernel, after my tablet automatically turn off because it run out of battery, but after i boot it up right after the battery is showing 15%, is this normal and should i calibrate my battery?
Thank you in advance
Click to expand...
Click to collapse
My battery is also doing this but then i question which is the true percentage...so then i quickly take the charger out and its just drops in a minute so i know if it thinks its dead its dead.
As for calibration you will find a ton of useful info here : http://www.androidpit.com/how-to-calibrate-the-battery-on-your-android-device
Hope this helps pal.

pdolton2000 said:
My battery is also doing this but then i question which is the true percentage...so then i quickly take the charger out and its just drops in a minute so i know if it thinks its dead its dead.
As for calibration you will find a ton of useful info here : http://www.androidpit.com/how-to-calibrate-the-battery-on-your-android-device
Hope this helps pal.
Click to expand...
Click to collapse
So this mean that the battery percentage display is just incorrect and nothing wrong with the battery itself?

R.A.G.E said:
So this mean that the battery percentage display is just incorrect and nothing wrong with the battery itself?
Click to expand...
Click to collapse
I would hope so as my device is 3 month old and im guessing ur device isnt that old...it would be horrible if batterys were going wrong that fast...no i would say its got something to do with the device judging the level incorrectly fo whatever reason and your idea of calibration is the right direction....i think im going to try as couple of suggestions in that link myself tbh.....if ur battery was to be lasting like an hour though then i would say somethings not quite right.

pdolton2000 said:
I would hope so as my device is 3 month old and im guessing ur device isnt that old...it would be horrible if batterys were going wrong that fast...no i would say its got something to do with the device judging the level incorrectly fo whatever reason and your idea of calibration is the right direction....i think im going to try as couple of suggestions in that link myself tbh.....if ur battery was to be lasting like an hour though then i would say somethings not quite right.
Click to expand...
Click to collapse
I just got in on monday this week, the battery usually last for about a day with 3-4 hours of screen on time with reading and web browsing, with a bit of gaming which seems to kill it pretty fast. I am currently let it charge overnight and the do a full charge cycle to see what will happen. Thanks for your help :good:

R.A.G.E said:
I just got in on monday this week, the battery usually last for about a day with 3-4 hours of screen on time with reading and web browsing, with a bit of gaming which seems to kill it pretty fast. I am currently let it charge overnight and the do a full charge cycle to see what will happen. Thanks for your help :good:
Click to expand...
Click to collapse
No problem pal.

I had major battery issues with my Tab S 8.4 (WiFi only) ... not I have the 10.5 LTE and the battery much much bettwr

le0.br4zuc4 said:
I had major battery issues with my Tab S 8.4 (WiFi only) ... not I have the 10.5 LTE and the battery much much bettwr
Click to expand...
Click to collapse
See the thing is R.A.G.E has jynxed me coz im on t805 and since his post my tablet is saying charging...then its at 20 percent...so i take it off charge and in 3 minutes it jumps straight to 5 percent...not 1 at a time...it just jumps...then a min later its off....so i put it on charge and its saying instantly 14 percent....wtf???

pdolton2000 said:
See the thing is R.A.G.E has jynxed me coz im on t805 and since his post my tablet is saying charging...then its at 20 percent...so i take it off charge and in 3 minutes it jumps straight to 5 percent...not 1 at a time...it just jumps...then a min later its off....so i put it on charge and its saying instantly 14 percent....wtf???
Click to expand...
Click to collapse
My battery jumped when I was playing clash of clans when my battery was at 10%. It went from 10% to 3%. So then I rebooted and it went back up to 5%. So when my battery was almost dead.. I quickly resetted the fuel gauge in synapse.. And waited a few minutes then it died. Then I plugged it into the charger (did not touch it) till it reached 100%. Seems to be fixed now I hope.

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The battery seems not to handle gaming very well i think, those drop are from playing brave frontier am still currently sitting at 38%

I bought this tablet 3-4 days ago. I installed this warship game. I also noticed that it literaly jumps from 30% to 3% in just 5 minutes or less. But my battery charges very quick,which is good on the other hand. What is going on whit this tablets battery? My tablet is still stock,not rooted and bla bla... LTE version offcourse. I'm not sure,but i think it started draining the vattery as soon as i insrted the memory card.
Sent from my SM-T705 using XDA Free mobile app

pdolton2000 said:
See the thing is R.A.G.E has jynxed me coz im on t805 and since his post my tablet is saying charging...then its at 20 percent...so i take it off charge and in 3 minutes it jumps straight to 5 percent...not 1 at a time...it just jumps...then a min later its off....so i put it on charge and its saying instantly 14 percent....wtf???
Click to expand...
Click to collapse
That's the problem I had on me T700, thank God I don't have this issue on the T807.
Funny thing, when the T700 battery died, I'd turn it on after 3 min and would show battery at 23% again and I was able to use it for another 15 min or so

I also had the battery problem,too.
After three days suffering by test all the method I Google from internet, I return my T705y to samsung,and they replace the board and battery.
Now everything's fine, try it,just return tabs to samsung.

tab s 8.4 lte battery only shows 2100 mah fully charged
I purchased a new oem battery (4900 mah) and put that in and it is still showing capacity for the battery as 2100 mah...have not a clue what is wrong?