I lose all my battery. What is happening? - Galaxy Tab 8.9 General

I had this problem with stock and CM 10.1. This is my case: link
I can have 100% charge when I leave the office. I throw the Tab in my backpack and the next morning, nothing. That is just an example; this happens to me a couple times a week.
If I power all the way down its not an issue. For a while I was thinking it was me putting the Tab in the backpack without sleeping and the cover was touching it and keeping it awake.
Right now I'm showing 4h 8m on battery and 99% full (took it off the charger this morning). I'm showing 35% maps and 32% wifi.

You have wake locks. Are you rooted? If so get better battery stats and find out what is causing the wake lock
God promised men that he'd put beautiful women in all corners of the world. Then he laughed and laughed and made the world round

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X1 is burning..

When i use Music Player for about 30 mins, my X1 becomes very hot. Is this normal?
depends. The battery cover might feel hot because you're not used to having a metal cover (metal conducts heat way better than plastic). It shouldn't be "burning", though.
define 'normal.' lol but yeah pretty much
My battery also drains rather fast when listening to music too =[ I can probably get only 5-6 hours!
I've got to bring my iPod or an extra battery when I work out or else afterwards I'll be at half battery for the rest of the day!
hrmm.... one question for you guys... do you guys use exchange? coz I have found that activesync used to keep trying to sync the contact that I previous created on another... those contacts all have a pic attach to them and for some reason, x1 (or activesync) couldnt take them and therefore, activesync always had error, then I will feel my phone was very hot and the battery drained very fast
i've got my x1 just a few hours ago and have to say that the batt managed to go down from 100 to 60% from 9am to 4pm - and yes, i am using exchange sync over 3g and have played with the device only for a while;
can't imagine how some people squeezed 2 days out of this - unless my batt is bad;
mikebem said:
i've got my x1 just a few hours ago and have to say that the batt managed to go down from 100 to 60% from 9am to 4pm - and yes, i am using exchange sync over 3g and have played with the device only for a while;
can't imagine how some people squeezed 2 days out of this - unless my batt is bad;
Click to expand...
Click to collapse
Actually.. that happenned to me when I first got my Xperia.. my battery didn't last for more than 1 day, but now this is my 3rd day without touching the charger or connect my X1i to the PC..
I don't know why that weird behaivour of the battery, but believe me.. soon it's going to be normal to have enough battery for 2 o 3 days.
In terms of battery life with my X1i, I found that having FlexMail with IMAP IDLE enabled wouldn't allow the device to FULLY enter standby (it only turned off the screen). I wrote a MortScript to check my battery level and run/kill FlexMail depending on where it's at.
In terms of the battery heat, I recently put my phone through hell. I have a cradle in my car that's attached to the vent. The vent is 'closed', although heat does still leak through. I went snowboarding and drove 2 hours with the car heater/GPS/TomTom on, streaming music with CorePlayer, and always having the screen on. By the time my trip was over, the back of the phone was literally too hot to touch for more than 5 seconds. I started freaking out, but I was 5 mins away from home so I left everything connected.
Surely enough, this tank of a phone cooled down over time, but nothing was harmed. The Li-Po battery showed no signs of 'ballooning', so I think everything is cool. Not going to be doing this over and over though!

[Q] Battery drain issue?

Hey everyone,
I'm not sure if I have an issue with a defective Captivate or if it running as intended. That's why I've come to you guys for some insight.
Here's my scenario:
A few days ago, I decided to leave my Captivate off of the charger overnight to see how much battery I would awaken with. It was just a little experiment I thought of to see how much the battery drains while not having anything intensive to do (such as power a screen). I fully charged the Captivate to 100% before setting it on my desk and going to bed. As normally, everything was turned off except wi-fi. When I awoken the next day (8 hours of sleeping), to my surprise, my battery was down to 27%. I was shocked that something could have drained almost 70% of my battery overnight. I downloaded an app called Spare Parts as a recommendation by some people and I seen "Running 100%" which means that the phone spent no time sleeping. When I look at any partial wakelocks, it showed "Android System" as a full bar. I assume that it could be a bad app that was keeping my phone from sleeping.
I restarted the phone, battery pulled, charged up and uninstalled some apps. Everything seemed back to normal as when I checked the the running %, it was proportionate to how often I was using the phone (not at 100%). I specifically checked if the phone was sleeping and it was through some monitoring. I would use the phone for 1 minute and then let it sleep for 2 minutes and you could see that the running % went down, as it is suppose to.
I kept monitoring the running % over the course of the day and it was fine. The less I used it, the lower the % would go; the more I used it, the higher. I also monitored what kind of apps I was firing up and I specifically made it an effort to not open any apps that were out of the ordinary. If I did, I checked to see if it kept my phone from sleeping and it did not (through my same usage tests as above). However, even after my close monitoring, sometime during that day, my phone would stop sleeping once again. I could tell because my running % never lowered, no matter how long I didn't use my phone. It would keep climbing which means it no longer slept. I made sure that I didn't do anything out of the ordinary too as I used the same apps as I did when the phone was sleeping fine. I checked "Android System" and it was getting larger. The battery was around 80%.
I charged up the phone again to max and made sure that nothing was preventing my phone from sleeping. Did the tests again and running % was proportionate again and I double and tripled checked to make sure the phone slept. I then left the phone not charging again to see what would happen as I would have no interactions with the phone to open any apps or change any settings. To my surprise, my battery was down to 60% (~ 6 hours of sleeping) when I awoke. I checked the running % immediately in the morning and it was at a very high percentage. "Android System", once again, dominated the partial wakelock portion.
So what's going on here? It doesn't actually seem like I'm doing anything on the user end to prevent the phone from sleeping. How come it decides to act up all of a sudden? If it was a bad app, how come it decides to prevent sleeping all of a sudden and not before? Even if it was a bad app, I didn't even launch anything while sleeping. Does the phone decide all of a sudden to stop sleeping?
The apps I use are:
Tasker
Y5 Battery Saver
Launcher Pro Plus
Twitter
SwiftKey
NHL Gamecenter
Handcent SMS
doubleTwist
Dropbox
Does anyone have the same problem?
Any help is appreciated.
Get rid of any task killers and battery savers they do more harm then good and most developers recommend not using them, they cause battery drain. The only battery app I use is Juicedefender because it keeps the phone from connecting constantly and keeps apps from running in the backround. I set it to connect every 15 min for 1 minute to sync, I turned off all notifications because they annoy me and I don't need to be notified everytime I get an e-mail or someone posts on Twitter or FB. My battery life has improved greatly once I dumped task killer. Also, I am running a Froyo mod and my battery is amazing now and my GPS works.
If you are in an area with a weak signal this will kill your battery because your phone is constantly searching for a signal and trying to connect. Also turn off wifi if you are not near wifi this will save battery.
Also try calibrating your battery and bump charge it. Here is a link for that. http://forum.xda-developers.com/showthread.php?t=765656
The battery will improve, mine got better after a few weeks of break in. I am at 60% been unplugged since 10 am and I made plenty of calls, checked e-mails, sent e-mails, checked XDA developement all day and I have plenty of juice.
Good infos. O agree with not using task killer
Sent from my SAMSUNG-SGH-I897 using Tapatalk
Hmm, thanks for the tips but there still seems to be something lingering around in my system that doesn't allow the phone to sleep. It seems to activate all of a sudden as well without user intervention.
I again left it overnight and it drained again when I woke up. I lose significant battery overnight when I sleep. I'm thinking about just restoring to factory settings. I've only had the phone for a week so I wouldn't lose that much data. I'll monitor it from the onset once I factory reset it and see if it's a hardware defect or something that was bad in my phone.
Do you have a live wallpaper installed? Also, do you have a bunch of Widgets on your homescreen? Are you constantly synching with e mail, FB, etc? No doubt something is running all night. It's not the phone, it's something you have installed. I set mine to sleep with Juice defender at night so nothing syncs. Check your wireless bill to see how much data is being sent while you sleep. Why not charge your phone while you sleep?
Sent from my GT-I9000 using XDA App
Nope, no live wallpapers and the only widgets I have on my home screen are the LauncherPro Plus widgets, Smooth Calendar and BattStatt. The only syncing I have going on is Google Calendar and Gmail but both of those shouldn't cause the phone to not sleep.
I was thinking of using Juice Defender but I would rather just get to the root of whatever app is preventing my phone from sleeping and kill it at the root instead of finding workarounds. For all I know, my phone may not be sleeping not just overnight, but with normal use as well and it would adversely affect battery life throughout daily use. I need the piece of mind that my phone is properly sleeping.
And I have no issues with charging while I sleep, but again, I need to find the root cause. If for whatever reason I'm can't access a charger overnight in the future (such as if I sleep over at my gf's house), I want to know that I won't wake up with a dead battery in the morning.
I really appreciate the help though.
As for what I decided to do next, I actually factory restored my phone yesterday morning and so far it is working well. I did not download any apps at all to make sure that this problem didn't persist with a stock phone. If it did, I would know that it's a phone defect and not something I did. Throughout the next week, I'll be installing different apps one by one to see any one of those apps will cause my phone to not sleep. This will allow me to isolate the app. It's long and tedious, but I would go through it for better battery life. So far, it's been working as I'm already through 10 hours on my phone with moderate use and it's only at 50%. Whatever was destroying my battery before absolutely had an effect on my daily battery life as I would struggle to even get 10 hours on my phone with moderate use.
Same Here
I find your post very interesting. I have not yet used Juice defender, however, I am now more keen to battery drainage. I talked on the phone for about an hour the other day and my battery went from 100% to 40%. I find this unacceptable for a phone. Imagine taking conf. calls and conducting business in the field throughout the day. My battery would be dead in two hours without checking email
I hope you can reveal your findings to help us all.
Regards,
JROCK
Battery problem fixed using the simple technique similar to the one shared back in this thread.
I used to lose 10% per hour (or there abouts) and by 5 or 6pm needed to go on charger. At the very best with no use it dropped 3-5% in an hour.
Now its all changed...
After being off the charger for 35 min and taken 2 calls and sent a couple of txts she still read 100%.
At 5hrs 17min off the charger it is at 81% and there has been 6 calls in total and about 9 txts, plus a couple of appointments added.
Here is what they said to do and it worked...
1. Charge the phone for 8 hours, but make sure it is turned on while charging.
2. Unplug the phone, turn it off, plug it back in for 1 hour.
3. Unplug it, turn it back on for 2 minutes, then plug it back in for 1 hr.
Then unplug and enjoy the new battery life
Sounds too easy to work, but bugger me, it did!
27% is clearly abnormal.
Sometimes, I put the phone on it's charger after a pull day only using 27%.
I read somewhere on XDA that some early phones had defective screens that would only shut the backlight off and not turn off completely. Don't remember what came of that thread though.
I have a battery drain issue as well. My Captivate is 2 days old and been charging it every night. The first charge was done via the computer while transferring music over. After moderate usage (1 hour of music, browsing apps, learning how to use the phone, etc.), the battery died after 10 hours. GPS, and bluetooth was turned off. WiFi was used for maybe 20 minutes. When I got home, I charged it overnight for around 10 hours.
Today, the phone died on me after 9 hours. I rooted via z4root and applied RyanZa's latest OneClickLagFix, which both apps can be found on the market. Before that time, the battery said there was about 80% remaining. Fast forward to 6 hours later and the battery is gone. Again, moderate usage.
According to *#*#4636#*#*, my Screen On is at around 60%. A few other bars are pretty high as well, but I'm not sure how to do a screenshot on the Captivate right now. The only method I found requires using a PC. Plus, my battery is dead meaning I have to charge it overnight again.
I had an issue for the last couple of days, just figured it out earlier today. I had a corrupt thumbnail file on the external SD so my android.process.media (something like that) was constantly running.
I first realized something was wrong before I determined the battery life was bad when I noticed that my CPU was constantly at 11470-1200mhz or 975-1000 when I disabled the OC.
Unmounting the card would allow the CPU to drop to under 200 at idle so I knew it had something to do with the external SD. Turned out there was a bad file under a DCIM (camera folder), so after I deleted it, it became smooth as silk!
Of course it's still an i9000 rom so battery life is still questionable
geokilla said:
According to *#*#4636#*#*, my Screen On is at around 60%. A few other bars are pretty high as well, but I'm not sure how to do a screenshot on the Captivate right now. The only method I found requires using a PC. Plus, my battery is dead meaning I have to charge it overnight again.
Click to expand...
Click to collapse
Try Shoot Me
Sorry for the hijack!
Here are yesterday's results:
Does these results look normal to you? I'm particularly concerned about the Social Hub and screen, and running. They're all higher than I expected. The brightness of the screen is set pretty low, maybe 2/10 of the brightness bar. As for Social Hub, well all I got is the Facebook widget, which is set to sync every 4 hours. Other kinds of syncing is off. GPS is off too. I don't have any battery saving type of apps yet, except for RyanZa's OCLF which includes the WiFi timeout.
I ended up charging the phone at 5% battery left. I had to sleep!

Battery Life Discussion

Please post your battery discussion here:
Hardcore73 said:
Please post your battery discussion here:
Click to expand...
Click to collapse
The first day I had it, I woke up around 8:00 AM and got to about 6:00 PM when it ran out of juice. This was with heavy use, screen always on and brightness set to about 60%.
I changed the settings so that the screen is not always on and brightness is now set to 40%. This made a huge difference. Today, for example, I've already had it off the charger for 8 hours and it's still at 79% battery. I'm at work, and it's getting used as it normally would be.
The screen being set to always on will obviously burn through battery at a fairly quick rate, especially if the brightness is set high. It's worth noting that letting the screen turn off automatically does not impede its usefulness. The screen comes on automatically when your turn your writes to look at the device, and when you touch the screen.
100% @ 7:30 a.m. & @ 31% battery as of this post, 9:20 p.m. with heavy use throughout the day. I had the screen @ always on through the majority of the day; however switched to off @ around 7 p.m.
eschlenz said:
The first day I had it, I woke up around 8:00 AM and got to about 6:00 PM when it ran out of juice. This was with heavy use, screen always on and brightness set to about 60%.
I changed the settings so that the screen is not always on and brightness is now set to 40%. This made a huge difference. Today, for example, I've already had it off the charger for 8 hours and it's still at 79% battery. I'm at work, and it's getting used as it normally would be.
The screen being set to always on will obviously burn through battery at a fairly quick rate, especially if the brightness is set high. It's worth noting that letting the screen turn off automatically does not impede its usefulness. The screen comes on automatically when your turn your writes to look at the device, and when you touch the screen.
Click to expand...
Click to collapse
So which mode will you run daily? Screen-off?
vypurr said:
So which mode will you run daily? Screen-off?
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Click to collapse
Screen off for sure. It comes on automatically when I go to look at it, and I want to conserve battery.
eschlenz said:
Screen off for sure. It comes on automatically when I go to look at it, and I want to conserve battery.
Click to expand...
Click to collapse
Undocked at 8 AM with 100% charged, used till mid night with heavy usage with 32% left when got to bed. Very impressed with battery performance. I am using default settings (brightness - 4, Always-on screen, showing cards on dimmed screen, alert on watch and phone when connected).
pthakkar9 said:
Undocked at 8 AM with 100% charged, used till mid night with heavy usage with 32% left when got to bed. Very impressed with battery performance. I am using default settings (brightness - 4, Always-on screen, showing cards on dimmed screen, alert on watch and phone when connected).
Click to expand...
Click to collapse
Unplug at 7:30am @11pm still 49% battery but my note 3 battery goes down, i have to plug it in the afternoon.
My battery usage on my phone shows android wear being the main culprit.
Before that, I could last all day in one charge.
unplugged at 8a.m. plugged back in around 1:30a.m. about 18% left.
Screen set to "always on", brightness set to "4".
I'm not sure what constitutes heavy usage, but I do look at my screen and do a couple of swipes about every 15 minutes or so, unless I'm expecting an email or something.
Why do you need the screen always on?
The screen on when you look at it functions really well, and saves a lot of battery.
I unplug at 6.45 am. Still got 60% by 10.30 pm
Sent from my HTC One using XDA Free mobile app
Wow, guys, what am I doing wrong?
I take mine off charge when I get up at 5.30 AM.
It's down to 85% by the time I leave the house at 7am (it's maybe had the screen on for a total of a minute maximum).
I lose roughly 10% an hour (with maximum "screen on" time of a minute or 2 an hour.
It's below 20% by 3 or 4pm.
So I thought it might be that I had brightness on 4/5, so I've changed to 1/5, but still, it's little better. I might get an extra hour maybe.
I like the idea of it, and when it's alive, it's great. But for me, I'm struggling to get 10-12 hours, with low use.
i'm gonna try it tomorrow with Screen-off mode enabled.
I'd happily accept charging it every night, but I'm struggling to get half a day here.
greatcapp said:
Wow, guys, what am I doing wrong?.
Click to expand...
Click to collapse
There's definitely something wrong there. I would try unpairing and resetting the watch (the only thing you'll lose is fitness data).
Then I'd uninstall Android wear from the phone, reset the phone and start all over again.
gadgetgaz said:
There's definitely something wrong there. I would try unpairing and resetting the watch (the only thing you'll lose is fitness data).
Then I'd uninstall Android wear from the phone, reset the phone and start all over again.
Click to expand...
Click to collapse
Thanks.
Gonna try that now..........
i agree, there's something not right in your situation.
i took mine off at 11am and it's almost 3am now and i'm at 43% screen always on and moderate use
Got mine on Thursday. Since then it's off the charger for 16h/day. Setting is always on. Indoor I usually keep the brightness at 1 since I really don't need more. Outdoor it's always at 5.
I always end my day with 20-30% left.
One thing I noticed is colourful watch face kill the battery. Specifically while driving since the brightness it at 5 at the screen come on often while driving or doing other activities.
Sent from my SGH-I317M using XDA Premium 4 mobile app
Having reset the watch as suggested, It does seem greatly improved for me.
It came off charge this morning at 7am, so by now I'd normally be down to maybe 30-40%, but I'm currently still on 82%.
Thanks for the suggestion - it looks like it may have solved it.
I'd normally end the day with about 50% left. Two days ago I installed Pinterest and Fancy to see what the interface is like. The next day I ended the day at 7%. Today by around 4pm I was down to 30%.
i uninstalled both apps, charged it up, and the battery usage seems to have gone back to normal.
On my watch the battery is not that great comparing to some of you. Have you activated some battery saving options ?
Mine comes off charge at around 7am. By 10pm I'm usually around 25-35% battery. Usage is light to medium, with screen set to always on at default brightness.
Ichigo-Roku said:
On my watch the battery is not that great comparing to some of you. Have you activated some battery saving options ?
Click to expand...
Click to collapse
i think it generally comes down to how much you interact with the watch. while i have somewhat moderate usage, the interaction time with the screen fully lit is fairly short, a majority of the day my watch is in the low power screen state (b&w mode) and i think that prolongs the battery quite a bit since it is a samoled screen and i'm sure the processor drops down to a low power state.
a lot of my use is swiping away notifications and navigation (but while in navigation the watch is mostly in the low power state since it shows my next step on that screen)
I'm not interacting that much with it, but each time I turn my wrist, the screen turns on, and I think that's the problem. The B&W mode is nice, when I just want to use it like a real watch the B&W mode is sufficient, is there a way to stay in B&W mode when I turn my wrist, but still have the vibrations on?
Thanks.

Screen stays on despite period of inactivity.

Hello all,
Since the latest firmware update, my G Watch R no longer turns it's screen off when i leave it on my bedside table overnight (not charging) where as it does turn off if it's on the charging cradle.
I've always had the screen set to always on and it generally lasts 2 days easily before the update but now that the screen stays on ambient mode, the battery would drop from 60-70% to around 35-40% after several hours while I'm asleep. I've done a factory reset last week and it didn't help.
On a slightly related note, the battery seems to drain much faster when it reaches below 20% and most of the time it just dies at around 5-10% left even with battery saver on.
Anyone else encountered this?
go into the wear app on your phone and disable always on screen. u also need to do this from the watch settings as well.
But that would turn off ambient mode which I want on and had done so since I bought the watch in November.
I have the same issue as well. Would love to have it back.

Little worried battery life

First day after 8 hours I am at 49%
My last watch would last me all day and I end the day at 49%
I like dark watch faces, first day did not charge the default brightness.
I like to have an ambient watch face (I do not want to press a button to get time) last watch kept ambient watch face on.
Two questions,
Can it last a day (a day for me is 16hours) ?
What settings do you use ?
This is very annoying 3 years and android wear devices I am still concerned I can not make if from when I remove it from a charger at 6am to when I can charge it again sometimes 2 or 3am the following day.
Mine goes from 5:30 am to 9:30pm and still has about 40% charge left.
With screen off mode I usually end the day at around 48% 6:30 to 8:00
Try turning auto brightness off. It works for me.
Two suggestion:
- Always ON / Ambience Display + disable tilt to wake
- Disable Always On + Enable tilt to wake
It will last you more than 24 hours.
One last suggestion: Enable Always ON + Enable Tilt to Wake + Auto Brightness, but you use long sleeve shirt.
So when it was unintentionally awake because of your hand movement, auto brightness will keep brightness at minimum because it is inside your sleeve (dark).
Recently switched Always ON off
and more significantly Tilt to Wake off
Getting 4 DAYS battery life
(Projected, currently at 30 hrs)
Turn WiFi off as well. That drains a ton.
Sent from my OnePlus 3 using XDA Labs
Yeah you really don't need always on and tilt to wake on.
I had this issue as well; watch draining really fast, wouldn't even last a day. I tried a number of things and I found out what works for me. Some will say turn off Wifi, others will say turn off Gestures. I did both of those, but they did not really amount to any great savings.
I reset my phone a couple days back and was forced to do the same to the watch. Once I was back up and all connected, I went into Android Wear app on my phone, pressed the gear (settings), clicked on my Asus ZenWatch 3 name, and ONLY turned off "Tilt to wake Screen". I left ALL OTHER settings alone. THIS my friend is what did it for me. As I type this, it's 2:40 p.m. my time (AST). I unplugged my watch this morning at 6:25 a.m. and I'm currently sitting at 70% battery power on my watch.
I look at it frequently, do voice commands, change watchfaces, install new ones, etc... from this morning till now. Oh...I leave the "always on" alone too. The watchfaces do their ambient faces and I love it. Best watch I ever had. I hope this helps someone.
Not surprising that the watches are a lot like the phones. The same model/year phone can have greatly different battery life with similar uses. Since owning my first smartphone, the first and original Droid, rooting and altering widgets and such, I've always had an issue with battery life. I'd have a dead phone by 1pm with normal to low use, while a friend with the same phone plays with it and gets 3 days.
The watches seem to be the same, and I think I play with mine more than normal, yet am happy with the battery life. I joke with the wife that we both have "charging issues" in that she can't remember to charge her device (phone) and I constantly have to be plenty charged and have charging capabilities wherever I will be. With a quick 10 minute charge in the afternoon or evening (if that at all) I can use and play with the watch all day, sleep with it on to track sleep quality, and I charge it when I get up to shower and my normal bathroom morning routine. This gets it back to 100%.
Although happy with it, I've been adjusting my settings based on usage, and not with a high PITA ratio. Always On set to off, tilt to wake on, and screen on for 10-15 seconds. But I have often thought that the tilt to wake was using battery unnecessarily as my work alone has me moving my arm around all the time. I'm going to try the settings above and see if there's an improvement. It makes sense turning off the Tilt To Wake, and will see if the savings is more than the usage from turning the ambient back on.
I bought this to replace a broken LG G watch R, so far after using it for a week it seems to have half the battery life with the same settings / use

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