Database Develop

[Q] Battery Problems - falling from 70 to 0 %

Hello,
i have a bad problem with my LG starting from day one when i bought it. I tried many things now, to no avail.
The problem is that sometimes my battery falls from high percent value to 0 just in one second. then the mobile goes out and i have to charge it, even it was nearly full some minutes ago.
Another problem is a warm mobile in standby mode when i have mobile inet active, and battery wont last longer than 4 hours. With WIFI it doesnt get warm but starts to decerase RAM until the mobile is unusable (timeouts, freezes, ect)
So there are 3 problems, i think related together somehow:
1. sudden Akku drainage, falling from high percent value to zero
2. fast akku drainage with mobile inet on, doesnt fall from #to zero, but get used up very fast
3. Unusable mobile due to RAM issues when WIFI activated.
Here are following some pics and a Log attached from Android Stats. Here you can see starting at 9.34 the bettery recalculations, in very short timeframes.
Can someone see any issues from the log what could be the problem?
The situation was like this: I recharged yesterday evening, and turned mobile inet on. Then i went to sleep. In the morning i saw that i had no connection to google servers (icons white instead on green) but i saw the battery was only drained 2% over night so i thought not bad.
I reactivated internet (mobile) in hope to get conn to google servers. Well, i got it but in same time the battery got drained from 98% to just 40% in one second. Since then the mobile stays warm. I have auto sync deactivated.
LOG
http://a-wo.com/00/asi_logs-20120208-095928.log
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I forgot:
Android 2.3.4 original, rooted but nothing changed on firmware/rom/baseband/anything

So i inserted screens now.

you have some kind of background application that doesnt let your phone enter deep sleep mode to lower cpu frequency and conserve battery (phone is awake when screen is not on, you can see the activity in the pictures). you should check what app is using most of the CPU time, it might not be code optimized and might be sucking too much of the battery.
also, it might help resetting the battery stats, search a bit and find some info on that (short version, charge it to 100%, let it for another hour plugged in, go in CM, delete battery stats, restart).
worst case scenario, your battery is busted and a replacement might be needed. hope that helps.

andrei.je said:
just a hint : most battery consumption can be checked in the battery stats, on the activity graph : awake vs screen on - if awake and screen on are not synced in the activity graph (should have same lines) then you have a problem. meaning when your phone has its screen off it should go into deep sleep mode (lower cpu frequency) but if you the phone is awake while screen is off, you have an application installed that won't let your phone sleep and just keeps using the cpu and sucking the battery.
this is mostly applied to standby battery life, if you are playing a game/watching a movie, doesn't really matter screen is on, cpu/gpu is sucking the battery.
my worst battery life while i had the O2X was about 16h, but that's with normal phone use (no games - you can have a psp for that, no music - you can have an ipod for that), mostly emails, browsing, IMs, calls/texts all day long also best battery life was 2d 10h (mostly on standby)
Click to expand...
Click to collapse
Thanks for also answering my post on the other topic.
It may be that theres an app that keep our phone from sleep, but even with this app, when i dont turn on wifi or mobile internet, the mobile runs 6 days straight. This is no joke, offline it could hold 6 days, i have a screen of where it looses 8% in 28 hours. And as you can see on my screen, it happens from one second to the other.
I already changed the phone the third time now, even with very few installed apps, this remains. I had it first time on day one when bought th mobile. Since then in all 3 mobiles maybe 15 times.
Anyway, it bothered me, but not as much as that the phone went nearly unusable with internet active. Always at 50 mb ram. So it was basically an offline only phone. In my 2 tests, both 5 days without internet, the mobile neither went slow, nor went off, nor lost battry, nor anything. Very fast LG OS. Until internet...
Anyway, now i installed Chuck Norris CM /MIUI ROM, lets see what happens. Until now its so smooth and soft, it feels like a complete other mobile. Also with wifi active... but i cannot say anything until tomorrow.
I tested already a lot of System Analyzer apps but theres really not much to see. Nothing seem to use much battery in whole. At least nothing that explains a loss of 70% in 5 seconds.
I posted a log here, thats the best thing to see i guess, but i cannot really read it well :-(
Anyway, your help is appreciated
Click here to see log

Saenchai said:
Thanks for also answering my post on the other topic.
It may be that theres an app that keep our phone from sleep, but even with this app, when i dont turn on wifi or mobile internet, the mobile runs 6 days straight. This is no joke, offline it could hold 6 days, i have a screen of where it looses 8% in 28 hours. And as you can see on my screen, it happens from one second to the other.
I already changed the phone the third time now, even with very few installed apps, this remains. I had it first time on day one when bought th mobile. Since then in all 3 mobiles maybe 15 times.
Anyway, it bothered me, but not as much as that the phone went nearly unusable with internet active. Always at 50 mb ram. So it was basically an offline only phone. In my 2 tests, both 5 days without internet, the mobile neither went slow, nor went off, nor lost battry, nor anything. Very fast LG OS. Until internet...
Anyway, now i installed Chuck Norris CM /MIUI ROM, lets see what happens. Until now its so smooth and soft, it feels like a complete other mobile. Also with wifi active... but i cannot say anything until tomorrow.
I tested already a lot of System Analyzer apps but theres really not much to see. Nothing seem to use much battery in whole. At least nothing that explains a loss of 70% in 5 seconds.
I posted a log here, thats the best thing to see i guess, but i cannot really read it well :-(
Anyway, your help is appreciated
I think the problem is caused by the battery stat file. Avoiding the techinical causes you should only charge the phone untill 100% and using battery calibration (you can donwload it for free from market) calibrate the battery! Hope to be helpful ^_*
Click to expand...
Click to collapse

[Q] Weird "battery drain" when lightly using the phone

Hello !
I just bought my P880 two days ago and everything is great except one thing: battery drain. It is not occouring in background when phone is in Deep sleep, it doesn't lose charge while it's sleeping, but when I just unlock it/start using it, it just starts draining.
I have rooted it, and unrooted using SuperSU. The thing is I haven't experienced that kind of drain yesterday, it was working fine except drain caused by bad signal (badly inserted SIM).
Usage by Android System is at 50% over 5 hours, Screen is at 9%. Awake graphs are the same as Screen on graphs- no wakelocks.
I have these apps installed:
Prey Anti Theft
Skype (not running)
Adobe Reader
SoundHound
Disco Light
QR Droid
Sygic (not running)
X-plore
SwiftKey 3 keyboard
WiFi, GPS, Data, everything turned off except mobile signal
Running Internation version with Android 4.0.3, Kernel 2.6.39.4-00001-g0f9182c
Mobile network type is EDGE:2 with mobile signal -70dBm
I'm first time android user and this is my first problem so I tried to include as much info as possible.
Thanks in advance

I see 2 mayor issues, first is the android deft app, it may be running and trying to sync but bcz the data is off it will try to connect foreva.
Also, edge is (in other words) ROAMING and this forces the antenna to use more power to get signal from another provider, it get worst if you have a phone with sim card.
Sent from my LG-P880 using Tapatalk 2

Gildegan said:
I see 2 mayor issues, first is the android deft app, it may be running and trying to sync but bcz the data is off it will try to connect foreva.
Also, edge is (in other words) ROAMING and this forces the antenna to use more power to get signal from another provider, it get worst if you have a phone with sim card.
Sent from my LG-P880 using Tapatalk 2
Click to expand...
Click to collapse
Thanks for pointing that out, but I have disabled every sync and I have set phone to 2G mode only, the reason is that UMTS signal was low and was draining battery even more.
I am only losing sharge when just doing random things on phone, even if that means only adding/removing widgets/apps on main screen with WiFi off.

Then you must try the Deodexed version of v10f, removing the bloatware with the script in the same thread.
The issue may be some lg apps that are running in the background so doing this will have 6 hours in standby time with 100% still, like me (if I turn all radios off ).

I have just woken up, while sleeping (9h) phone was awake for about 50%, no wakelocks but there were 30 alarms from Android/Google maps ans 29 alarms from com.google.android.gsf
Hope this helps.
I may try custom ROMs if nothing else works.
While typing this message I have lost 7%.

Similar state here as the OP. Got the phone two days ago.
All is good, it rooted OK, Directory Bind works fine, phone runs like hell (about 10 times faster than my old Galaxy S) BUT it drains battery like a genuine power guzzler.
Ok I get that according to the performance you get, it comes with an accordingly high power draw, so I don't ***** about it, I just want to know if this is normal. I mean I played 2 hours and 15 minutes of Sprinkle and the battery died, starting from a full charge. Screen was set at 50%.
GPS is off, Bluetooth is off, no 3G mobile network and screen is at 50% brightness as I said. There's an NFC icon on the notification bar next to the battery icon, which I am not sure if it should be there.
Here are a couple of shots from the battery section of the phone and from Battery monitor widget if these help.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Please note that as the OP said, the phone consumes nearly nothing when idling. Firmware is 10f.
PS I am not trying to hijack the OP's thread. I just noticed the same behavior and I'd like some help on the same matter, as well as to contribute in whatever way I can. If the OP is offended somehow, I will gladly start a new thread.

@psolord No, not offended at all. I'm glad you posted actually.
My phone has encountered 20 more Alarms, wake ups since I left it standing:
com.google.android.apps.maps Wakeups: 50
com.google.android.gsf Wakeups: 45
You can see pictures below, the drop on the second picture happened when I was writing me previous post from P880.
- I am also rooted again (after factory restore)
- I have reenabled 3G networks but the signal is only at about 50%.
Any additional info please ?

Ok buddy, so we can keep discussing it here together.
For the matter at hand, I see the same behavior, when I unlock the screen, it's like I have opened a whole in the battery.
It dropped from 85% to 65% just from downloading a new map (500MB, 20min download on a slow wifi) from Sygic downloader. I mean this can't be right, right?
I also checked cpu spy and it reports the system 75% at deep idle, 15% at 51Mhz and the rest are 0% to 1% up to 1500Mhz. So if the cpu has so little operation, what on earth is draining the battery?
I wonder if we could be looking at a bad battery batch.
Is there an app that reports exactly what activity consumes power and how much?

Indeed, the hole in the battery.
I even restored to factory from recovery mode since I screwed up the root, so it was just stock, but guess what, nothing has changed :crying:
I really hope this can get fixed, else I'll get a replacement.
I hope someone from this forum with more experience can help :/

I think I am onto something.
Can you please check how is the phone doing if you disable everything under location and services?

psolord said:
I think I am onto something.
Can you please check how is the phone doing if you disable everything under location and services?
Click to expand...
Click to collapse
I am going to try this, I am also talking to LG Support right now. WIll let you know when I get more information.

I disabled everything, and I didn't see pretty much any improvement. LG Support suggested me to return the phone.
Pretty much draining the battery atm so I can charge it back to 100% and use something like Battery Calibration. Maybe it can change something.

Yeah indeed I was onto nothing. Nothing changed for me either.
Playing 30mins of a 720P resulted my battery dropping from 62% to 50%. I also used the gps for the first time with Sygic (Jesus even the GPS is lightning fast) and the battery went from 50% to 30% for a 20 minute ride. It seems that my phone cannot give me more than 2 hours of use. That's just silly.
BTW do you or anybody, know of an app that can show battery usage per app?

psolord said:
Yeah indeed I was onto nothing. Nothing changed for me either.
Playing 30mins of a 720P resulted my battery dropping from 62% to 50%. I also used the gps for the first time with Sygic (Jesus even the GPS is lightning fast) and the battery went from 50% to 30% for a 20 minute ride. It seems that my phone cannot give me more than 2 hours of use. That's just silly.
BTW do you or anybody, know of an app that can show battery usage per app?
Click to expand...
Click to collapse
Stock application ?
Also you can use Better Battery Stats to see if there are any wakelocks or anything is waking up the phone etc.

What is happening right now is rather strange, I disabled screen turning off (trying to drain battery to 1%/2%) looking at stock battery app, it seems to be stuck at 21% and it's not changing.

The stock application does not do so much analysis, but the batterystats you used above seems more like it.
I am getting panicked and I miss some stuff haha. Ok lets cool.
It makes me sad that we don't get any input from the community. Something like "yeah this is normal, live with it" or "your phone is faulty, take it back to the shop for a replacement" or something.

Agreed, ANY, ANY kind of input would be appreciated, but I guess we are getting none.
I am going to fully charge it today, do some stuff and report back tommorow. Also anyone, please do post any suggestion you may have.

shiinkotheone said:
What is happening right now is rather strange, I disabled screen turning off (trying to drain battery to 1%/2%) looking at stock battery app, it seems to be stuck at 21% and it's not changing.
Click to expand...
Click to collapse
Maybe this has to do something with the built in power saver. Maybe it kicks in when the battery drops to the 20s and stops whatever is draining it.
I am thinking trying some battery saver to see if it does the same thing but from the beginning of the full charge.

psolord said:
Maybe this has to do something with the built in power saver. Maybe it kicks in when the battery drops to the 20s and stops whatever is draining it.
I am thinking trying some battery saver to see if it does the same thing but from the beginning of the full charge.
Click to expand...
Click to collapse
Actually I have disabled it when it asked me if it should turn on. So I guess nothing to do with that.

I am going to backup now, fully unroot and somehow get it to pure stock. Than I'm probably going to exchange the phone in case battery life doesn't change.

The Sony Xperia SP, A heartbreaker Smartphone

Hi, I bought this phone a month ago, I bought that actually looked like a very good phone, analyze their characteristics, not only its design, and discard the possibility of buying the Samsung S3 Mini, I think it was a mistake :crying:
This Xperia SP is really a headache, the first thing I knew I was bad at was his poor WiFi, later learned of the problem of the screen, which to place the phone on a flat surface the touch becomes useless (I is how to fix it), and now the battery, then I have seen pictures that the battery will last up to 2 days, I was never happened in 14 hours, or when you use it the first time, now active or inactive so I Sstamina gives up to 7 hours, which sucks .
Originally came with compiling 12.0.A.1.257 and decided to upgrade to the 12.0.A.2.245 to see if suddenly improved, big mistake, the 2245 presents many problems in the stability of the OS, the screen flashes when using certain applications , Stamina mode is "Arrangement" a bit, as the cell I last up to 12 hours, but it's all over.
In conclusion I am determined to get rid of this phone, and all who ask for me, I gonna Scream, NEVER BUY THAT MTF CELL, which by the way is a bit expensive for the problems to come.
Sorry, my english is not very good :silly:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

how many apps are you running?
That standby time seems ridiculous...
Heres mine and I have 41% battery.
I've heard about problems with wifi and touch but never had either of them, try and exchange your phone if its getting that bad.

esloded said:
Hi, I bought this phone a month ago, I bought that actually looked like a very good phone, analyze their characteristics, not only its design, and discard the possibility of buying the Samsung S3 Mini, I think it was a mistake :crying:
This Xperia SP is really a headache, the first thing I knew I was bad at was his poor WiFi, later learned of the problem of the screen, which to place the phone on a flat surface the touch becomes useless (I is how to fix it), and now the battery, then I have seen pictures that the battery will last up to 2 days, I was never happened in 14 hours, or when you use it the first time, now active or inactive so I Sstamina gives up to 7 hours, which sucks .
Originally came with compiling 12.0.A.1.257 and decided to upgrade to the 12.0.A.2.245 to see if suddenly improved, big mistake, the 2245 presents many problems in the stability of the OS, the screen flashes when using certain applications , Stamina mode is "Arrangement" a bit, as the cell I last up to 12 hours, but it's all over.
In conclusion I am determined to get rid of this phone, and all who ask for me, I gonna Scream, NEVER BUY THAT MTF CELL, which by the way is a bit expensive for the problems to come.
Sorry, my english is not very good :silly:
Click to expand...
Click to collapse
To be honest with you- the WiFi does suck on the sp, even though there are many fixes none of which will work 100% . Ive come across alot of problems with my sp also, keyboard wont pop up, walkman crashes when using certain apps. But on the plus note there is deffo an upside to the sp compared to most other mid range smart phones out there.
I have smashed my screen on my sp and have no warrenty- so im switching over to a s3 mini, simply because a new white digitiser for my phone would cost me £135.
Play around with your phone first see if you can make any good of it before you sell up
Xperia SP Trinityy V
Desire HD -LorD ClockaN ICe CreamSandwhicH
iPhone 4S But thats irrelivent Here

Americans ("People who live in the USA") use the term "Lemon". A lemon is a car, often new, that is found to be defective only after it has been bought. Maybe you bought a Lemon. My SP gets good battery life, about 7 hours of heavy use. Join us at a Spanish forum at http://www.htcmania.com/forumdisplay.php?f=1082
Check this out:

yo-meister said:
how many apps are you running?
That standby time seems ridiculous...
Heres mine and I have 41% battery.
I've heard about problems with wifi and touch but never had either of them, try and exchange your phone if its getting that bad.
Click to expand...
Click to collapse
My battery has never lasted so long, here I leave the applications that I'm running and my phone settings only asset I have WiFi, my cell phone battery only lasts if I have off jj :crying:
If I can help greatly appreciate it, because the phone I like, but do not want to have to charge it every 7 hours.
Question: If i reset my phone, can it fix?

i think may be uninstall antivirus app.
if it is not work
please backup your file and factory reset

esloded said:
My battery has never lasted so long, here I leave the applications that I'm running and my phone settings only asset I have WiFi, my cell phone battery only lasts if I have off jj :crying:
If I can help greatly appreciate it, because the phone I like, but do not want to have to charge it every 7 hours.
Question: If i reset my phone, can it fix?
Click to expand...
Click to collapse
Whats your screen on time? Also ho do you use your phone? Heavy gaming or light texting only?
Things will always matter when you want to compare battery life. So give us more details. Install Wakelock detector or BetterBatteryStats to know what is eating up the battery on your phone and then work on eliminating the factor. Cheers man!

sarkar1990 said:
Whats your screen on time? Also ho do you use your phone? Heavy gaming or light texting only?
Things will always matter when you want to compare battery life. So give us more details. Install Wakelock detector or BetterBatteryStats to know what is eating up the battery on your phone and then work on eliminating the factor. Cheers man!
Click to expand...
Click to collapse
I do not play much, texting, only play when I'm charging the phone, cut the rope and Diamon Dash.
In the images shows that the battery is low 2% in 29 minutes
Ok, i do it, the result from battery stats plus.
After it, I think do a factory reset, to see how it behaves.

esloded said:
I do not play much, texting, only play when I'm charging the phone, cut the rope and Diamon Dash.
In the images shows that the battery is low 2% in 29 minutes
Ok, i do it, the result from battery stats plus.
After it, I think do a factory reset, to see how it behaves.
Click to expand...
Click to collapse
I think you should. Your Android OS is using too much battery. Hit on it and check which process is using the maximum battery.

Once you've charged your battery to 100%, go to Apps, All, and look for eco mode controller. Click on force stop and after 5 seconds or so, clear data. Then reboot your phone and use it normally. Check out my best battery life so far (attached images)
Sent from my C5303 using xda app-developers app

Battery life not quite as good as I hoped
The battery life on my xperia SP is not bad but it is no better than my previous xperia neo which had only a 1500mah battery versus 2370mah.
Many reviewers have commented that they can get through 2 days.
I can only make 1 and a bit. The key problem appears to be the screen. I can use the screen for about 4 hours/day before I'm out of juice, some reviewers claim 7 hours. Thats a big difference. Using it outside of the time is always going to be worse but screen on time is a bit disappointing for me. Stamina with screen off seems reasonable but again not outstanding. I lost 13% between the morning and lunchtime without doing anything but 15 minute syncing, I use a battery saver, not stamina mode as I don't want to shut down all my apps and have no data at all when screen is off.
Phone is only 2 weeks old, can I recalibrate the battery? Seems to stay on 1% for a while too. On the contrary, my wifi reception is really good. Better than any other phone I've had.

paulmt123 said:
The battery life on my xperia SP is not bad but it is no better than my previous xperia neo
Click to expand...
Click to collapse
I had a Pro, the QWERTY variant of the Neo. The SP has the same battery life for me, which is about 7 to 10 hours
paulmt123 said:
I use a battery saver, not stamina mode as I don't want to shut down all my apps and have no data at all when screen is off.
Click to expand...
Click to collapse
Go to Settings>Power management>STAMINA mode and add apps you want to stay connected, like Facebook, Google accounts, MyXperia...whatever app you want to keep connected to the internet
paulmt123 said:
Phone is only 2 weeks old, can I recalibrate the battery? Seems to stay on 1% for a while too.
Click to expand...
Click to collapse
Yes you can, but you need to root your phone. Some people say its useless to do It, but you can try.

Got a bug less device
Sent from my C5303 using xda app-developers app

Battery life on standby is perfectly good for me – a few people have said that the estimate Stamina mode gives is based on recent usage. So if you haven’t had the device very long of have just had a big session on your phone the estimate might not be very accurate.
Most mornings the battery is 0, 1 or 2% down on the reading before I went to sleep…deep sleep is being enforced.
However, I don’t think the battery consumption with screen on is anything special – not bad, not exceptional.
It’s a really good phone IMO. I admit WiFi seems badly implemented and you shouldn’t need the tweak which seems to fix it for most rooted users (all manufacturers seem to still release phones with Wifi problems). But with this tweak in place I get better wifi than my old xperia (it had a custom kernel that gave it awesome range) and better than my wife’s Samsung S2. There’s a part of my house where we couldn’t get any signal for my old phone or laptops – amazingly the SP can connect!

Parkside said:
Battery life on standby is perfectly good for me – a few people have said that the estimate Stamina mode gives is based on recent usage. So if you haven’t had the device very long of have just had a big session on your phone the estimate might not be very accurate.
Most mornings the battery is 0, 1 or 2% down on the reading before I went to sleep…deep sleep is being enforced.
Click to expand...
Click to collapse
My C5303 drained battery like hell, with less than 5 minutes on screen time, it drained 2% per hour.
bluetooth, nfc, wifi, data disabled( sim card does not have data), mobile network wcdma or gsm only
stock .245 generic RU rom rooted with bbs installed,
top of the list wakelock : superstamina xssm (nobody in this forum can fix it)
battery drains : cell standby and phone idle
already factory reset over 5 times, nothing works
is it a rom problem? app problem? simcard problem or battery calibrating problem?
really need some advice here, had been stuck with this ****ty battery life for 2 motnhs

Jambu95 said:
My C5303 drained battery like hell, with less than 5 minutes on screen time, it drained 2% per hour.
bluetooth, nfc, wifi, data disabled( sim card does not have data), mobile network wcdma or gsm only
stock .245 generic RU rom rooted with bbs installed,
top of the list wakelock : superstamina xssm (nobody in this forum can fix it)
battery drains : cell standby and phone idle
already factory reset over 5 times, nothing works
is it a rom problem? app problem? simcard problem or battery calibrating problem?
really need some advice here, had been stuck with this ****ty battery life for 2 motnhs
Click to expand...
Click to collapse
I think that is a problem in the OS of the SP, as put or dimly lit screen this will still consume battery as much lighting.
In my case the problem was corrected a bit, I deleted widgets, some app that did not use, the antivirus was always eating, I set to use 3G only when I need it, otherwise I'm on 2g most of the time, not game unless it is connected to the charger, WiFi and GPS only when I need them, listen to music and write a little and this we see is the result, compared to what it was prior is something a little encouragement ...(Attached)
But, why have a midrange phone if you will not be able to use to stop because two hours is dead? the Sony need to fix that big waste of battery.
I will continue to see what happens, disconcerted me the Android OS consumes much battery 45% to 52% long
Please, helpme whit this, why there are applications that I am using, or have not opened, but are consuming battery?, How do I prevent them from running without my wants? any program to control the apps that connect to the internet?

esloded said:
I think that is a problem in the OS of the SP, as put or dimly lit screen this will still consume battery as much lighting.
In my case the problem was corrected a bit, I deleted widgets, some app that did not use, the antivirus was always eating, I set to use 3G only when I need it, otherwise I'm on 2g most of the time, not game unless it is connected to the charger, WiFi and GPS only when I need them, listen to music and write a little and this we see is the result, compared to what it was prior is something a little encouragement ...(Attached)
But, why have a midrange phone if you will not be able to use to stop because two hours is dead? the Sony need to fix that big waste of battery.
I will continue to see what happens, disconcerted me the Android OS consumes much battery 45% to 52% long
Please, helpme whit this, why there are applications that I am using, or have not opened, but are consuming battery?, How do I prevent them from running without my wants? any program to control the apps that connect to the internet?
Click to expand...
Click to collapse
Check which processes in Android OS is running the most. Install Wakelock Detector and that should help you get there
Also, hibernate apps that are running in background. Use Greenify for the same.

sarkar1990 said:
Check which processes in Android OS is running the most. Install Wakelock Detector and that should help you get there
Also, hibernate apps that are running in background. Use Greenify for the same.
Click to expand...
Click to collapse
i have everything turned off, zero app installed ( except bbs), the lighting effects are off, totally everything off, screen at the dimmest, battery still drain, is that a battery problem or a sim card problem, there are many wakelocks too

esloded said:
I do not play much, texting, only play when I'm charging the phone, cut the rope and Diamon Dash.
In the images shows that the battery is low 2% in 29 minutes
Ok, i do it, the result from battery stats plus.
After it, I think do a factory reset, to see how it behaves.
Click to expand...
Click to collapse
In the images posted I can see Mcafee and Lookout. I would suggest removing Mcafee as I have found it to be a resource hog, my opinion though. Either way u need to get rid of one of them.
In another image I noticed wifi is always on. Go to Settings -> Wifi -> menu, advanced -> Keep wifi on only when connected to charger one. That will reduce wifi wake usage.
get Juicedefenderfrom HERE OR
Snapdragon BatteryGuru from Here
If using Juice defender, set to balanced/aggressive.
If using Viber, go into viber -> more options -> settings -> wifi sleep policy -> change to use device settings not always on.
Zero the battery and do a full charge. Post updated screens when battery is under 30% ( Please include the MISC Usage screen from BBS). I expect it will be 2 days before we see those screens.
If you can even post a screen of the Misc usage from BBS just now and we`ll compare it with the next one soon.
I use JD (gives me a 1.5x boost to battery) with Stamina Mode on (no low battery or wifi). I charge my phone on an average once in 2 days, medium.

I don't have any of those problems, the battery lasts very long, don't have any flat-surface problems, wifi catches at full signal on both my houses, never had "screen flashes", only some crashes in the youtube app.
Must be a PEBCAK error

Battery life and Charging issues

Hi Guys,
Just bought a 8.0 version. So far I have few issues with it
1, The device must be charged with official samsung adapter which came with it or unless it only activates slow charge. I have few hi-power USB adaptors (2A) lying around of iPad which quickly charges iPhone and iPad within an hour or 2, I connected the tab with it but it gave the error message that it's not official samsung adapter and activated the slow charge which is painfully slow. It charges 10 % in 1 hour, so require to plug in 12 hours to charge it full.
2, I charged it full and left it for 1 day, didn't open it. On the second day, I opened it to find out the battery left only 5 % from 100 % , it drained 95 % in just a day or more doing nothing !!!
3, After that, last night I disabled notifications for all apps, disabled google account auto sync, disabled a lot of apps which I thought might be draining the battery. I left it at 80 % . This morning I woke up to find out it was left 64 % i.e. even after all notifications and sync disabled, it still sucked 14 % sitting idle in just 7 hours time. That is, still sucking 2 % an hour sitting idle. I find it pretty amazing, since even my iPhone with all it's notifications etc, the battery doesn't drop more than 1 or 2 % whole night. Comparing with 2 % an hour for this tab with all notifications disabled !!!
Is the system this bad in battery management? or is it normal for android devices?

Try setting your WiFi to be off when screen off. Menu in WiFi settings will take you to where to disable this.

I think there is something else going on. Did you check in settings to see what is using battery? In a normal day of use, I go through about 5%/hour with the biggest drain being from the screen, as it should be.
Regarding your charger issues, I haven't figured out the secret, but I have been successfully charging my S2 using a non-trivial charger and not slow charging. I have also added a magnet charge adapter and get full-sized charging with the required cable conn3cted to the non-trivial charger.
Verstuurd vanaf mijn SM-T710 met Tapatalk

I'm hoping you find a solution to this. I've just got an 8.0 LTE and it's draining juice like crazy. I've tried all you've tried without much success.
I'm gutted tbh, as finally, finally, Samsung makes an 8.0" tablet with 4:3 aspect and also a tab that doesn't lag! But something just right. My Note 10.1 (2014) last for days and days without a charge. This thing lasts a day to a day and a half which is so frustrating as this is the tablet I've been waiting for for years.

Draining is almost definitely not normal. A tablet should not drain that quickly, especially because even my 2 year old LG G Pad can last a month on a charge. Try going into settings -> battery -> battery usage and see what's eating up that battery. if it reports system, try disabling features, or perhaps factory reset and not install anything, leave it and see if it drains normally. if so, slowly reinstall your apps and see which one will cause issues. if not, and drain is still crazy, ask for a replacement or repair.
Regarding charging, it might just be because Samsung is using fast charge on this thing or sth, or it's using a different volt, watt or amperage on its chargers and the new tabs just aren't designed to be used with apple acc. That's unfortunaletly likely a hardware issue though.

AB__CD said:
Draining is almost definitely not normal. A tablet should not drain that quickly, especially because even my 2 year old LG G Pad can last a month on a charge. Try going into settings -> battery -> battery usage and see what's eating up that battery. if it reports system, try disabling features, or perhaps factory reset and not install anything, leave it and see if it drains normally. if so, slowly reinstall your apps and see which one will cause issues. if not, and drain is still crazy, ask for a replacement or repair.
Regarding charging, it might just be because Samsung is using fast charge on this thing or sth, or it's using a different volt, watt or amperage on its chargers and the new tabs just aren't designed to be used with apple acc. That's unfortunaletly likely a hardware issue though.
Click to expand...
Click to collapse
I think i know the Problem of the fast battery drain. I saw that every time all cores are active. I think thats the Problem... Anyone knows a trick??
Gesendet von meinem JY-S3 mit Tapatalk

GrandMasterPlank said:
I'm hoping you find a solution to this. I've just got an 8.0 LTE and it's draining juice like crazy. I've tried all you've tried without much success.
.
Click to expand...
Click to collapse
This problem is common in Samsung tablets. Re solder the battery connector will fix quick discharge or slow charging.
This is not exactly but the battery connector used most in Samsung tablets
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

sascha.staudt said:
I think i know the Problem of the fast battery drain. I saw that every time all cores are active. I think thats the Problem... Anyone knows a trick??
Gesendet von meinem JY-S3 mit Tapatalk
Click to expand...
Click to collapse
I don't think that's the problem, after fully charge to 100%, I can have my tablet for over 9hrs in standby and still at 100%, with wifi or data turned on, battery does drain faster, I've only disabled apps that I don't use, but I've sure all my cores auto detect whether they are needed or not.
@op
You can use a good quality cable or charger, it should work, a branded one is not mean it's better, I have 1 from china, a few HTC 1Amp ones, and a aukey brand one, that work, you can also use any of those QUALCOMM 2.0 certified chargers, they should work, but don't expect it to support the QUALCOMM 2.0 fast charge.
I also have about 4 other chargers that don't work.

I use Anker 40W 5-port USB charger and the tablet charges without any problems. It also charges fine from external batteries. The only time I saw it complain about "slow charge" mode is when I connected it to an USB port in an older PC.

Did this ever get resolved?
I recently got an 8" S2 LTE version and it's drinking juice maddeningly fast. Around 7% per hour just sitting on my desk in standby.

It can solve within 5 minutes by soldering iron

There's another thread on here that had a suggestion that turned out to solve it.
The issue was with 5Ghz WiFi. I switched to a 2.4Ghz WiFi band and now my battery drain in standby is gone.

I doubt the issue is in the hardware - certainly soldering the connector will do nothing, the pcbs are machine soldered, with a tiny chance of error (definitely not "common"), and the surface area needed for current flow is minuscule so unless youre missing a pin up the house, youre just wasting time and unnecessarily taking apart your device
I have some experience with the android ril and its probably what is casing problems for people on the LTE version - just a bad connection to the cell tower.
Someone mentioned that connecting to 5 ghz wifi will drain battery. The principle is the same - connecting to a low power or intermittent signal will drain battery.
A new radio may help - try a few different ones if its possible, i dont know about their availability.
Also tell me, do you use the same provider for data on your tab as you do on your phone?

vshapke said:
I doubt the issue is in the hardware - certainly soldering the connector will do nothing, the pcbs are machine soldered, with a tiny chance of error (definitely not "common"), and the surface area needed for current flow is minuscule so unless youre missing a pin up the house, youre just wasting time and unnecessarily taking apart your device
Click to expand...
Click to collapse
You may own one or two Samsung tablets, and fortunately doesn't have battery connector problem but thousands of other users have it and it's a phenomenon of Samsung tablets, not just this model but other models as well. The threat of " Flickering Screen" has more than 40,000 views, other forum: Android Central, it has over 100,00 views, all of them coming from a cracked battery connector. PCBs are machine soldered, but this connector cannot handle the stress and the flexibility of the mainboard weakly secured to the frame.
I have handled over thousands of Samsung tablet per year, so this fact is not a surprise to me.

Beut said:
You may own one or two Samsung tablets, and fortunately doesn't have battery connector problem but thousands of other users have it and it's a phenomenon of Samsung tablets, not just this model but other models as well. The threat of " Flickering Screen" has more than 40,000 views, other forum: Android Central, it has over 100,00 views, all of them coming from a cracked battery connector. PCBs are machine soldered, but this connector cannot handle the stress and the flexibility of the mainboard weakly secured to the frame.
I have handled over thousands of Samsung tablet per year, so this fact is not a surprise to me.
Click to expand...
Click to collapse
Actually ive had quite a few sammy tablets, opened most of them up and never seen any give between PCB and mobo components. Maybe ive been lucky with that though, as two of the ones ive owned had other serious problems - the Nexus 10 i got on release day in the states seems to have a processor flaw that has it glitching out when sustaining normal load at max frequency, probably a faulty core, and the Pro 12.2 i got my mom needed speaker replacement within two months of use.
Regarding the number of views... that is not an indicator of anything, i imagine a lot of those were people just browsing, or more amusingly people who were reading the forums because they were looking to get the device in question.
Anyway, imho not very likely. But anyone whos worried can go to their local repair shop and get it cracked open and checked for a few bucks. Wonder if anyone is willing to do that?

vshapke said:
Anyway, imho not very likely. But anyone whos worried can go to their local repair shop and get it cracked open and checked for a few bucks. Wonder if anyone is willing to do that?
Click to expand...
Click to collapse
One thing I can tell: even professionals don't know how to fix this problem unless they read this forum and others, or are told what to be done.
I have bought some defective tablets claimed by professionals on some internet sites and I have fixed each under 5 minutes, and re sell them to make a profit of $100 each.

s_kates81 said:
Hi Guys,
Just bought a 8.0 version. So far I have few issues with it
1, The device must be charged with official samsung adapter which came with it or unless it only activates slow charge. I have few hi-power USB adaptors (2A) lying around of iPad which quickly charges iPhone and iPad within an hour or 2, I connected the tab with it but it gave the error message that it's not official samsung adapter and activated the slow charge which is painfully slow. It charges 10 % in 1 hour, so require to plug in 12 hours to charge it full.
2, I charged it full and left it for 1 day, didn't open it. On the second day, I opened it to find out the battery left only 5 % from 100 % , it drained 95 % in just a day or more doing nothing !!!
3, After that, last night I disabled notifications for all apps, disabled google account auto sync, disabled a lot of apps which I thought might be draining the battery. I left it at 80 % . This morning I woke up to find out it was left 64 % i.e. even after all notifications and sync disabled, it still sucked 14 % sitting idle in just 7 hours time. That is, still sucking 2 % an hour sitting idle. I find it pretty amazing, since even my iPhone with all it's notifications etc, the battery doesn't drop more than 1 or 2 % whole night. Comparing with 2 % an hour for this tab with all notifications disabled !!!
Is the system this bad in battery management? or is it normal for android devices?
Click to expand...
Click to collapse
So what happened? Where's the followup to update us all on what you did to remedy this? Did you even find a solution?
XDA is about helping each other. It's not about just coming on here with questions and then not even replying once to the thread you started with any status updates.

I am interested too.

diehard2013 said:
I am interested too.
Click to expand...
Click to collapse
It can fix easily by re solder the battery connector.
This is mine after the fixing, play all day and leave it on overnight, then it's still have 42% left. When battery suddenly drops from like 90% to 10%, I can tell right away that the black battery connector is cracked ( soldered to mainboard ) or the white battery connector ( from battery with 6 wires ) is loose.
This one can fix by pushing the opening closer, I see Samsung fix this problem by applying a little silver conductive glue to it.
Recently when removing battery connector, it seems quite hard to take it out. From a closed look, I see they applied a thin silver conductive glue to
fix loose battery connection

As an Tab S1 owner the T800, it takes approx 5 hrs to fully charge the battery with the original charger.
John.

Z1 suddenly powers off, although it is nearly full [VIDEO]

Hi,
i've read through the forum but i'm not sure if it is the same problem, so i want to post it anyway, maybe someone can help.
My Z1 has the problem that it suddenly powers off, although the battery is nearly full (over 90%). It happens randomly when i open an app or when i just open the display.
here is a video i made:
and when i recharge it, it starts again with 1% although the whole charging takes about 20-30min till it says that it is full again.
what can be the cause for this?
OS is Android 5.0.1
Thanks

So, in the meanwhile i connected it with the Xperia Companion PC Software
which has the ability to check for updates and repair faulty OS..
So it updated to 5.1.1 but at the end it stucked when it should power on and boot.
Again, i pressed the red dot in micro Sim slot for about two minutes and connected it with the charger.
then it began to charge at 54% and at the end i could boot into the system again.
When i watched youtube vids at first it was ok, but after the fourth clip (between 4-8 min. clips)
the Z1 powered off again.
So, it seems to me that the battery makes the problem. It always has this problem when there is more power needed (watching youtube or running an power consuming app).
Then battery seems not to be able to maintain enough power.
In the internet i read about many dead sony xperias, which have similar problems.
In my case i need to be sure that the battery causes the problem, because changing the battery is not easy that way.
i already opened and changed batteries from smaller smartphones but this one is glued with adhesive and that makes it more tricky and takes more effort. So therefore it would be better to know that it's really the battery that makes the mess.
I already contacted Sony Support but no answer yet.

Hi, i had the same issue on my old z1, it was starting to turn off at 30% of remaing battery, and after some time at 90% remaing battery it turned off.
I resolved by sent to change battery

I have the exact same problem! Anyways did you install any rom with any battery tweaks on your Z1?

aaronguest said:
I have the exact same problem! Anyways did you install any rom with any battery tweaks on your Z1?
Click to expand...
Click to collapse
No i never changed the rom or anything on this.
I just made an update with xperia companion, but nothing changed.

Elysiumx said:
Hi, i had the same issue on my old z1, it was starting to turn off at 30% of remaing battery, and after some time at 90% remaing battery it turned off.
I resolved by sent to change battery
Click to expand...
Click to collapse
So how much will it at the end cost to let it change?
I can try to change it myself, but i don't want to risk anything if the cost-benefit difference is not too high.

Hi, i found a web site which for 30€ replace battery and they did other repair service (in Italy)

GetSAS said:
Hi,
i've read through the forum but i'm not sure if it is the same problem, so i want to post it anyway, maybe someone can help.
My Z1 has the problem that it suddenly powers off, although the battery is nearly full (over 90%). It happens randomly when i open an app or when i just open the display.
here is a video i made:
and when i recharge it, it starts again with 1% although the whole charging takes about 20-30min till it says that it is full again.
what can be the cause for this?
OS is Android 5.0.1
Thanks
Click to expand...
Click to collapse
Hey dude, you should change your battery,my brother had the same problem and only solution was replacing the battery now everything is fine Xperia works great widhout shutdown. Dont try tweaks it wont help you.
Best regards and hope you will fix it

GetSAS said:
So, in the meanwhile i connected it with the Xperia Companion PC Software
which has the ability to check for updates and repair faulty OS..
So it updated to 5.1.1 but at the end it stucked when it should power on and boot.
Again, i pressed the red dot in micro Sim slot for about two minutes and connected it with the charger.
then it began to charge at 54% and at the end i could boot into the system again.
When i watched youtube vids at first it was ok, but after the fourth clip (between 4-8 min. clips)
the Z1 powered off again.
So, it seems to me that the battery makes the problem. It always has this problem when there is more power needed (watching youtube or running an power consuming app).
Then battery seems not to be able to maintain enough power.
In the internet i read about many dead sony xperias, which have similar problems.
In my case i need to be sure that the battery causes the problem, because changing the battery is not easy that way.
i already opened and changed batteries from smaller smartphones but this one is glued with adhesive and that makes it more tricky and takes more effort. So therefore it would be better to know that it's really the battery that makes the mess.
I already contacted Sony Support but no answer yet.
Click to expand...
Click to collapse
I had the exact same problem with 2 different Xperia Z1's. First it starts turning off around lower percentages like 10% or 20%. Then slowly but surely it will start shutting down at higher percentages. Eventually you will continuously need an external power source in order to use any application without it turning off. I've seen multiple threads of people describing the same problem. It seems like Sony produces their batteries to only last as long as the warranty, just like their updates.
Replacing the battery isn't too hard, just get one for like 15 euros, and also a T5/T6 screwdriver (perhaps included in a kit with prying tools) for like 5 euros. To open up the device, you'll need to use a hairdryer or something similar.
The process:
Use the hairdryer to heat up the upper-right corner of the backplate.
After heating it up for a bit, see if you can manage to lift up part of the backplate. If you feel like you need too much force, just apply some more heat.
Repeat 1 and 2 until you completely got off the backplate.
Get the screwdriver and unscrew all of the screws. No worries about sorting them, they're all the same size.
Disconnect the ribbon cable near the top that runs over the black frame.
Repeat proces 1 and 2 for the black frame, be careful not to break the plastic.
Disconnect the battery, pull it out, and insert the new one.
It's likely you broke the adhesive of the black frame, if you don't mind losing the waterproofness, you could just put back the frame without any adhesive.
Put back the screws.
Reconnect the ribbon cable from step 5.
If the adhesive on the backplate is still properly on it, heat up the backplate before putting it back on.
Put on the backplate, and slide your fingers across the edges with a bit of force to make sure it sticks well.
Just be patient and be careful not to apply too much force/heat and you'll be good.
If reusing the adhesive, there might be a chance it won't be as waterproof. Using new adhesive might help, but I can't guarantee it will.

Replace the damn battery. Z1 battery lifecycle onle 3 years. Replaced mine and now its normal again. In Malaysia cost only RM100, include replacement service.

I replaced it already. It seems to be good now.

GetSAS said:
I replaced it already. It seems to be good now.
Click to expand...
Click to collapse
Now we know that our Z1 battery lifecycle was pretty bad, lets not charge the phones many times, just charge it when battery goes lower than 15%....install greenify to improve battery usage...
Sent from my C6903 using XDA-Developers Legacy app

Same exact issue with my z1, been a paper weight the past 2 years.
Picked up a battery from Amazon for 30 bucks same day shipping. The install was so easy, took 10 mins.
The unit has not crashed once since the new battery install, can use it as my back up phone now!
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

I ve made a pic to compare the old one with the new battery.
You can see that the old one is slightly more thick.
Old one is above.