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Is anybody seeing heavy battery loss during standby mode?
On average my TF is losing between 3.5 and 5% battery in standby mode. I have done a few tests with and with out airplane mode and it does not change.
I currently have an RMA setup with ASUS but I dont want to have to send it back and wait 14 days, so I wanted to reach out here first.
Thanks in advance,
Brandon
Every device I've ever owned has lost power during standby. That's the tradeoff. Otherwise, you could, you know...turn it off?
Windows has that nice "hibernate" hybrid.
It's totally not worth an RMA...don't let your OCD win.
There are a few processes that run in the background like Android OS, WiFi, keyboard etc. It needs to be reactive to certain signals so it can't be off completely. The iPad has amazing stand-by times but I don't know why. I just saw it when I borrowed one for a day from a friend.
I would NOT RMA my device unless it's a significant drop in battery life (>10%/h); it's just the way it is mate!
But what I realized is after I rooted, installed SetCPU and set the governor to ondemand the battery life has increased significantly. It idles at 216MHz now.
mine doesn't have a great standby time either, pretty bad actually when you compare it to my xoom. however its an issue that should be fixed with a software update and it shouldn't require an rma.
Sent from my ADR6400L using Tapatalk
Check if you have your Wifi on sleep also?? Depending on number of applications that you use for updating it might be using your battery.
There are a number of other threads already discussing the issue of battery life in standby, but here's my conclusion: the TF has an issue with wifi that if you set it to stay on while the TF's screen is off (a setting in the wifi section of system settings), it burns quite a bit of battery while on standby. If you set it to turn off when the screen is off, then it doesn't.
I know this is a bug with the TF because the Xoom does not exhibit this behavior. It burns less than .5%/hour when on standby with wifi set to stay on when the screen is off. The TF gets this same performance (<.5%/hour burn) on standby only if wifi is set to turn off. Otherwise, I'm getting the same as you: around 3.5%/hour burn rate.
I'm assuming that the TF's wifi just doesn't enter whatever low-power state it's supposed to enter while on standby. My second assumption is that this is something that will get fixed in an update.
Sent from my Transformer TF101 using Tapatalk
I just turn on airplane mode when I know it is going to sit, and it burns about 1% an hour.
wynand32 said:
There are a number of other threads already discussing the issue of battery life in standby, but here's my conclusion: the TF has an issue with wifi that if you set it to stay on while the TF's screen is off (a setting in the wifi section of system settings), it burns quite a bit of battery while on standby. If you set it to turn off when the screen is off, then it doesn't.
I know this is a bug with the TF because the Xoom does not exhibit this behavior. It burns less than .5%/hour when on standby with wifi set to stay on when the screen is off. The TF gets this same performance (<.5%/hour burn) on standby only if wifi is set to turn off. Otherwise, I'm getting the same as you: around 3.5%/hour burn rate.
I'm assuming that the TF's wifi just doesn't enter whatever low-power state it's supposed to enter while on standby. My second assumption is that this is something that will get fixed in an update.
Sent from my Transformer TF101 using Tapatalk
Click to expand...
Click to collapse
+1 on this. Looking forward to the updates
wynand32 said:
There are a number of other threads already discussing the issue of battery life in standby, but here's my conclusion: the TF has an issue with wifi that if you set it to stay on while the TF's screen is off (a setting in the wifi section of system settings), it burns quite a bit of battery while on standby. If you set it to turn off when the screen is off, then it doesn't.
I know this is a bug with the TF because the Xoom does not exhibit this behavior. It burns less than .5%/hour when on standby with wifi set to stay on when the screen is off. The TF gets this same performance (<.5%/hour burn) on standby only if wifi is set to turn off. Otherwise, I'm getting the same as you: around 3.5%/hour burn rate.
I'm assuming that the TF's wifi just doesn't enter whatever low-power state it's supposed to enter while on standby. My second assumption is that this is something that will get fixed in an update.
Sent from my Transformer TF101 using Tapatalk
Click to expand...
Click to collapse
Is there an adjustment for the Wifi and/or app settings. In general the second or third largest power consumer in these devices is the radios. The radio needs to be powered up whenever a connection needs data. This can be for keep alive messages that verify the existence of a wifi connection to an access point, or from an app such as gmail, calendar, etc. checking for new data. In any case there may be settings that allow one to decrease the frequency of these operations.
ssj4vegita2002 said:
I just turn on airplane mode when I know it is going to sit, and it burns about 1% an hour.
Click to expand...
Click to collapse
FYI, I did a few tests with airplane mode on and I was still losing around 3.5%-5% battery life.
I did do a few more tests, and my most recent test I found interesting.
I use my TF as usual and had a few applications running, I then turned off the screen and let it sit for an hour and 4% battery life was used.
Then I powered down my TF fully, then I powered it back up and turned off the screen. (Currently the TF is up and running but no applications have been opened aside from backround apps Syncing).
I put the TF into standby (turned off the screen) at 1:37 am and I had 53% battery life.
I checked on the TF in the morning at 8:51am, and I had 51% battery life.
So in just over 7 hours my TF only used 2% battery life in standby which is a very acceptable range.
Conclusion, what ever apps we are opening and using under normal use are not being fully closed out, and are running in the backround, not the backround services as per the airplane mode test.
I will do a few more tests tommorrow, I hope this helps and I look forward to others feedback!
Brandon
Brandon - Please check out yours with wifi set to turn off when the screen is off. In all of my testing (similar to yours), that made the difference between great standby performance (<.5%/hour) and not-so-great (3.5%/hour or more). Nothing else seemed to matter, including manually turning off just about every app that normally runs in the background and verifying that they stayed off.
Hopefully soon Asus will also fix the battery stats bug so that we can see what apps/system components are actually using power on standby. Or they'll just fix wifi so that it sleeps as it should.
Sent from my Transformer TF101 using Tapatalk
I have already done the tests with WIFI turned off and also with the TF in Airplane Mode.
So far the only time I have gotten great standby time was when I rebooted my TF and did not open any applications. (WIFI was on FYI)
Brandon
so, the last two night i've gotten great result from stand by mode. The first night i went and killed couple of programs, before putting in AP mode for the night. 12:45 am till 9:00 am from 78% 75%. Last night at 12:00am had 34% this morning at 8:00 it dropdown to 32%.
I took a screenshot of the battery usage after waking up in the morning. Wifi was left on with the sleep policy set to sleep on screen off. It seems to turn back on intermittently but the awake bar seems to happen more often the longer it is in sleep. Is that meant to happen? What does awake signify? That the screen is on?
background data probably running in the background
like weather updates to it to refresh every 4 hours or something
its weird though, towards the right theres like 2 times where the device is awake for long periods of time :S
brandonpaz said:
Is anybody seeing heavy battery loss during standby mode?
On average my TF is losing between 3.5 and 5% battery in standby mode. I have done a few tests with and with out airplane mode and it does not change.
I currently have an RMA setup with ASUS but I dont want to have to send it back and wait 14 days, so I wanted to reach out here first.
Thanks in advance,
Brandon
Click to expand...
Click to collapse
Would you try "Task killer" for decreasing battery loss?
My battery seems to be dying alot quicker now I have the dock. Hopefully a new firmware will come out that'll lower the battery consumption of the dock when its in standby.
I just noticed in the past few minutes that my gmail is pushing to my tablet despite the screen being off and my wifi policy set to off when sleeping. I've also found some issues when it would actually cut the wifi off when sleeping, and when it comes back it doesn't want to reconnect to my router.
My other issue is battery life related. Last night I *believe* I turned airplane mode on before going to sleep and when I woke up 9 hours or so later, the battery was at least 10% down, I think more than that but I didn't take note of it at night. Even if wifi was on, it should've been shut as my sleep policy is that way. Looking through other threads people seem to be experiencing 1% or so battery drain in an hour. The other factor is that I have setcpu installed and a screen off profile that maxes at the second lowest frequency. This morning I installed netarchy's kernel and lowered my setcpu profile so it stays at the minimum frequency when the screen is off.
I'm running Prime 1.3 (didn't do the r2) and have manually removed a handful of the Asus apps that I don't use/want, and I have GPS disabled.
What 'concerns' me is that I have a droid incredible for a while now and with it, I get no battery drain overnight with airplane mode on (at least none that registers) and that's a battery with a fraction the capacity of the transformer. Moreover, I have a very few apps on my tablet whereas my phone has quite a few and basically beyond the stock stuff on the tablet the same apps are on my phone. Also, the battery stats window on the transformer doesn't show any info about apps. I've had my phone on since I woke up, on 3g and I'm at 90% with not much use. And I thought that my phone got meh battery life.
ive had some issues with wifi disconnecting and wouldn't stop disconnecting till a reboot. cant find any news on it. ive tried all firmwares now and still have the issue.
I been having the same issue. Last night I reflashed the 8.2.3.13-20110511 build, to see it it will help. Mine is stock not rooted.
I have the dock and use the pad with most of the time, both are loosing battery life even after I do a complete shutdown. To me it seems it has gotten worse after the 8.2.3.13-20110511 build update. The WiFi is loosing connection when the dock goes dead so I have to reboot the pad to get it to reconnect.
I also have contacted Asus tech. On another thought I really wish in Android you could disable startup apps without rooting.
-M
Was hoping for more replies but my naturally long-winded posts probably scared everyone off...
I wiped my device and installed Modaco's ROM. I didn't touch the stock apps and only things I've installed are Titanium & Tasker. I put together a Tasker profile to kick airplane mode on when the system is put to sleep, and turn it off when unlocked (unless airplane mode was enabled when put to sleep). I also installed Setcpu and setup a profile to keep the CPU frequency to the minimum when screen is off.
I charged to 100% and let it sit overnight. When I woke up I was at 98%, when I got home a little while ago it was at 96%. Note that I hadn't used the tablet other than for a brief minute or two to check the battery stats. As of now I'm showing 15hrs 51mins on battery with a 4% drop. I've had it in airplane mode the whole time. Oppositely, I had my droid incredible at 100% and played Drop7 (great game btw) for at least 20 minutes before going to bed last night, and it was still 100% when I woke up (it was in airplane mode overnight). I find it weird that my droid incredible, with a 1/4 of the battery capacity doesn't drop at all overnight even with a game being played, and the transformer drops 2% in that time idling.
Has anyone wiped battery stats via CWM?
When I setup AutoStart, I noticed the power state event for screen on/off is off by default. I tried turning back on, seems to improve battery on sleep.
Sent from my Transformer TF101
After using my transformer for a couple of months, the battery life amazed me the most. With about 9-10 hours battery and a couple of days sleep time which was very convenient. Also charging time was very fast.
But after updating to 3.2, I've noticed that when I leave the transformer on sleep like I usually do after using it, it would drain to 0% by the end of the day when usually it would only drain like 1-5% before updating it. I checked the processes and it doesn't look like anything out of the ordinary, and I haven't installed any new applications since the 3.2 update.
Anyone else having this kind of problem?
I have the same problem
Sent from my Transformer TF101 using xda premium
I came online to search for the exact same problem if anyone else had. And seems I am not the only one.
Now do you have the keyboard dock as well or just the tablet itself?
My case is that when I have both (tablet and keyboard) fully charged at 100% it will drain out in 18-24 hours whether I use it or not.
Under Location & Security make sure "Use wireless networks" is unchecked - that fixed it for me in 3.2
Reapman said:
Under Location & Security make sure "Use wireless networks" is unchecked - that fixed it for me in 3.2
Click to expand...
Click to collapse
Going to give this a try, as Im having this issue as well.
I found that putting the device into airplane mode stopped the battery drain, even though I had bluetooth disabled already, and WiFi policy was set to off when screen is off. Will see how it goes with "Use Wireless Networks" disabled in location settings.
Alternatively, I may write a small app that puts the device into airplane mode when the screen has been off for more than a couple minutes (and disables airplane mode when the screen is turned on)
I have this issue too.
I had mine docked into the keyboard. left it closed and went to work.
When I came back home late, I saw the tablet with 90+% battery and the dock at almost 0%.
Might be the same issue as you guys.
What I did is set the wifi policy to off when screen off.
and I tried again to leave it in the same situation.
Charged it full at night. left it overnight, woke up went to work, and came back. and I checked. Both are still way above 90%.
It makes a big difference for me. =)
I got the battery at 66% this morning and now after no use it was at 18%! I was about to throw my tf out of the window!
Ciela said:
Going to give this a try, as Im having this issue as well.
I found that putting the device into airplane mode stopped the battery drain, even though I had bluetooth disabled already, and WiFi policy was set to off when screen is off. Will see how it goes with "Use Wireless Networks" disabled in location settings.
Alternatively, I may write a small app that puts the device into airplane mode when the screen has been off for more than a couple minutes (and disables airplane mode when the screen is turned on)
Click to expand...
Click to collapse
I have done all this yet the drain continues. When I compare the battery drain of my tf101 with my HP touchpad, there is simply no comparison. There is virtually no drain even if I leave my touchpad uncharged for more than a day. On the other hand, my tf discharges battery when closed with the dock as if I am using it.
What gives?
Factory reset helped mine. 14 hours 81% with 3 hours of straight use.
Sent from my Transformer TF101 using xda premium
Reboot
Sent from my Transformer TF101 using xda premium
I got a huge battery drain today again, got my battery from 57 to 3 on the dock and from 100 to 88 on the tablet with less then 10 hours, just for comprasion I got only 7% down on the dock over night (like 9-10 hours) just this morning. when i checked battry use today I saw 63% used by wifi, this wasn't like this in the morning and all I did is just checked my email and sent it back to sleep, that's annoying as hell, i barely use it and it keeps on dying really fast..
Same here indeed the wifi policy set to never sleep-->Big drain wifi policy set to when screen off-->drain very little
Sent from my Transformer TF101 using Tapatalk
Reapman said:
Under Location & Security make sure "Use wireless networks" is unchecked - that fixed it for me in 3.2
Click to expand...
Click to collapse
same here,went from extreme drain to normal
It doesn't seem like the power button on the tablet works as well as the one on the dock. If docked, I only lose about %1 per hour.
I've noticed that if I use the one on the tablet, the screen will go dark, but sometimes the tablet doesn't sleep (verified via the battery status). I have the screen set to never timeout and the Wifi set to turn off. Bluetooth set to off.
The tablet lock button seems to be the most reliable and I always get about %1/hour drain when I use that button. Might be just a coincidence.
Is there are "real" sleep mode that we can access? It seems like sleep mode doesn't really sleep, it just shuts down certain items (the screen, bluetooth/wifi). I'm talking about like an S3 state where power is cut to the processor and the only the memory is keep.
If there is a real sleep, it seems like the device has a choice. I want a "Go to the Fok to Sleep" button!
Reapman said:
Under Location & Security make sure "Use wireless networks" is unchecked - that fixed it for me in 3.2
Click to expand...
Click to collapse
I did this and it worked for about an hour (cpu spy) but then something woke the tablet and it never went back to deep sleep and wiped out the dock battery in about 4 hours. If I turn wifi off standby life is good. However I woud really like to keep the wifi on and get good battery life.
This working consistently for you?
I was ready to replace my dock. This worked like a charm. I went from 1-5% per hour in sleep to <.5% per hour.
I just figured it out this week. I was running WEP at home and this prevents both of my android devices from sleeping like they should. I know I shouldn't be running WEP but neighbor is wide open so I was too lazy to change. Open and WPA allowed sleep on both devices about 80% of the time in standby and big improvement in battery life. Still keeping my eye on it but difference was immediately noticeable with cpu spy.
Sent from my SAMSUNG-SGH-I997 using XDA App
After further review it appears it wasn't WEP. All was well until I put my laptop and computer back on wifi then both infuse and transformer had inconsistent sleep. I disconnected computers and both android devices sleep again. Updated my router firmware but no improvement. Any ideas?
Update: I believe my router is doing this. Works fine until I connect other wireless devices then drains. There are sporadic reports of this in other forums for dlink dir-655.
Sent from my SAMSUNG-SGH-I997 using XDA App
After 3.2.1 or possibly the Maps update, my wifi stopped powering on after sleep. It would start and stop, even airplane mode would not break the cycle. Frustrated, I turned the location setting back on, reinstalled maps and left it undocked. Woke up this morning. 98% battery. Arg. WTF is going on? This is maddening. The dock drain seems to fluctuate between 8-40% in 8 hours and I get 2% undocked? Is the dock the issue (that would suck).
I'm docking it again tonight. Maybe it was reinstalling maps? This is really frustrating. With 3.2.1 the browser is stable, Skype video now is going. This is the last issue with TF before I can strongly recommend it to my friends.
I am getting some nasty battery drain now too. Approx 30% overnight with wifi off. Im very happy that skype works though.
Sent from my ADR6350VW
My build number is HTK75.US_epad-8.6.5.13-20110925, I have both a docking station and a tablet.
When I have the tablet plugged into the Dock, I still have the docking station drain issue. If I leave the screen turned off with the dockingstation plugged in, I get about 1 day of use before the battery is drained (This is with out using the tablet at all).
If I have them seperated and I do not use the tablet, the tablet alone will last for 3-4 days on standby (the screen off).
ASUS is recommending RMA, does anybody here have feedback before I send in my tablet and Dock?
Thanks in advance,
Brandon
brandonpaz said:
My build number is HTK75.US_epad-8.6.5.13-20110925, I have both a docking station and a tablet.
When I have the tablet plugged into the Dock, I still have the docking station drain issue. If I leave the screen turned off with the dockingstation plugged in, I get about 1 day of use before the battery is drained (This is with out using the tablet at all).
If I have them seperated and I do not use the tablet, the tablet alone will last for 3-4 days on standby (the screen off).
ASUS is recommending RMA, does anybody here have feedback before I send in my tablet and Dock?
Thanks in advance,
Brandon
Click to expand...
Click to collapse
Had the same issue. It is not a hardware issue, RMA won't help. I'm running revolution HD and the problem is fixed. I now drain about 2-3% in 8 hours in standby.
i have the same problem running Prime 2.0.4. Been debating calling support, but i'll give revolution a try tomorrow and see what happens.
Hard reset cured it for me.
I guess you already have tried this:
1. Click on <Apps> on the home screen
2. Click on <Settings>
3. Click on <Screen>
4. Make sure that <MobileDock Battery saving mode> is ticked
And after this make sure to turn off the screen with the power button, otherwise it may not go to deep sleep, it is definitely a software bug, which I'm not sure why they don't fix it (I have a B80, tablet+dock)
godsosall said:
I guess you already have tried this:
1. Click on <Apps> on the home screen
2. Click on <Settings>
3. Click on <Screen>
4. Make sure that <MobileDock Battery saving mode> is ticked
And after this make sure to turn off the screen with the power button, otherwise it may not go to deep sleep, it is definitely a software bug, which I'm not sure why they don't fix it (I have a B80, tablet+dock)
Click to expand...
Click to collapse
Yeah I have already tried this but Thanks for the info.
I have the B30 Tablet and B50 Dock.
Brandon
brandonpaz said:
Yeah I have already tried this but Thanks for the info.
I have the B30 Tablet and B50 Dock.
Brandon
Click to expand...
Click to collapse
You need to send in the Dock to get ASUS to change the circuit board. The earlier docks are able to wake-up the tablet by pressing on any buttons on the keyboard. If you can do that with yours, then you need to RMA it for the issue to even be remotely fixed.
I've got battery saving mode enabled and pressing a key on my dock wont wake up the tablet, but when i put it to sleep , both batteries are completely drained within 48 hrs. Separate, they will both last all week.
if you guys are interested, i may point your attention to this thread (pages 22 and 23), where i have posted that i got my transformer back from repairs with successful results
http://forum.xda-developers.com/showthread.php?t=1287799
the revolution rom seems to be working great, but i'd love to be able to use prime and not have the battery drain. i'm wondering if it is a hardware issue, but revolution's clocking settings overcome that by reducing the cpu while its asleep, and prime doesnt do that by default.
I might try prime with some different setcpu profiles to see what happens..
from the points discussed I would say that although it might not be caused by a software issue, at least it should be fixable with software. It's very simple: IF (AND (any keyboard key pressed=TRUE, deep sleep mode=TRUE),IGNORE,...)
I'm having the same problem and it's pretty annoying. I also noticed that after the tablet turns off I have no access to the keyboard until I undock it and then dock it again.
frosty5689 said:
You need to send in the Dock to get ASUS to change the circuit board. The earlier docks are able to wake-up the tablet by pressing on any buttons on the keyboard. If you can do that with yours, then you need to RMA it for the issue to even be remotely fixed.
Click to expand...
Click to collapse
I agree that there was a hardware issue with the Dock, I exchanged my dock for a newer model the first time that they had the sleep mode issue some time ago. Changing the dock fixed the sleep mode issue at that time. They broke the sleep mode again with the last firmware update, so I don't believe the fix is just to replace the dock, because I have the dreaded sleep mode issue AGAIN!
There seems to be a problem with the latest firmware that affects the handover between the AC adapter and the dock batteries. The transformer will not go into deep sleep mode if it has been connected to the charger (as determined by cpuspy) giving ongoing dock battery drain.
If I reboot the device after the charger is disconnected, then deep sleep mode works as intended and battery life is once again awesome. This may be due to an application conflict of some sort, but as yet I am unable to track down the offending app.
Tldr; Reboot after disconnecting from AC to reenable deep sleep mode
Sent from my GT-I9100 using xda premium
KevinLuong said:
There seems to be a problem with the latest firmware that affects the handover between the AC adapter and the dock batteries. The transformer will not go into deep sleep mode if it has been connected to the charger (as determined by cpuspy) giving ongoing dock battery drain.
If I reboot the device after the charger is disconnected, then deep sleep mode works as intended and battery life is once again awesome. This may be due to an application conflict of some sort, but as yet I am unable to track down the offending app.
Tldr; Reboot after disconnecting from AC to reenable deep sleep mode
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Does setting your screen brightness to AUTO make a difference? (vs. manual setting a level).
Bob Smith42 said:
Does setting your screen brightness to AUTO make a difference? (vs. manual setting a level).
Click to expand...
Click to collapse
Doesn't seem to make a difference - my transformer is set on AUTO brightness by default anyway. It definitely seems to be related to the newer firmware - I had no problems with battery drain under the previous firmware so it is fairly unlikely to be a hardware issue.
Well, the other day I did a shed load of app updates and the battery has been draining over 5% an hour in standby mode since. CPU spy shows that it isn't deep sleeping. Looked at Advanced Task Manager and Maps was constantly restarting every time I stopped it. I've now force stopped Maps and the battery problem seems to have gone away. If it works I'll restart Maps and see what happens.
Well I bit the bullet, rooted my transformer and installed Prime. It's been almost 24 hours and the battery level has barely moved. Let's hope that it stays that way.
Well, after further testing, it wasn't Maps that was causing my battery drain problem but Samsung's own app, MyNet. I force stopped it (I've never used it) and everything seems to be okay.
KevinLuong said:
There seems to be a problem with the latest firmware that affects the handover between the AC adapter and the dock batteries. The transformer will not go into deep sleep mode if it has been connected to the charger (as determined by cpuspy) giving ongoing dock battery drain.
If I reboot the device after the charger is disconnected, then deep sleep mode works as intended and battery life is once again awesome. This may be due to an application conflict of some sort, but as yet I am unable to track down the offending app.
Tldr; Reboot after disconnecting from AC to reenable deep sleep mode
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
this helped me.
every time my tablet is docked the battery drains like crazy and both units are dead after one full day and night even sitting idle.
i tried undocking the tablet and rebooting the tablet and leaving it idle and that worked and helped maintain battery life in the tablet. only lost 4% over night
but i still wanted to use my dock.
i charged the dock and tablet together and then after i unplugged the AC cord from the dock, i performed a reboot and then started up CPUSPY and closed the tablet clamshell.
woke up this moning and only lost 4% over night.
while im still jealous that my ipad2 will only lose 4% over a 4 day period staying idle, im still happier that i only lost 4% over night from dock and tablet together compared to being dead over day/night idle.
so to recap, if you have tablet docked and charging. remove the charger and then reboot your system and then your battery drain should be gone. if you dont reboot tablet and dock after removing AC power then your system will drain battery all day and never enter deep sleep.
thanks!
Hi,
I loaded my TR101 yesterday to 99 or 100% ( tablet, undocked), disconnected it from the adapter, used it for some time, and then shut it off. The battery level was around 75% then.
This morning I started it again and the battery level was 98%! So it tells me it loaded in the night from 75 to 98% from thin air. No adapter connected. The dual battery widget shows this too: battery level went up from around 75 to 98.
Is thre any explanation for this? I suppose the battery level is not really 98, but what happened? I conbected the adapter, and the it starts loading to 100%.
I am no twaeker, so I did nothing unusual. I installed all the system updates Asus gave me. Now I have Android 4.0.1.
Any thoughts?
Sent from my Transformer TF101 using xda app-developers app
If you docked it again once you shut it off then the dock would have charged it
*Detection* said:
If you docked it again once you shut it off then the dock would have charged it
Click to expand...
Click to collapse
Yes, I know that the dock charges the tablet battery, but the tablet has not been docked for two days!
BTW: When I started the tablet (undocked) up again after two hours, the battery once more said that it was charged for 98%.
I then used it until the battery said it was charged for 31%. I wonder how the situation will be tomorrow.
First, wipe battery stats if you can. Second, empty it out completely (be careful about the 0% bug) then do a full charge.
Recommended battery use is always to empty it out completely then charge it completely. It'll extend its performance and lifetime.
How do I wipe my battery stats? I cannot find any control to do so. My tablet is not rooted btw.
Anyway: This morning when I started it up the battery icon was red and it shut down by itself (empty battery?), but when I started it up then with the adaptor the battery stood at 17%. This might have been the real status after several wrong indications yesterday, I suppose. Battery health is displayed as "good".
It only seems a matter of wrong indication. The battery last the normal time, it seems to me.
I will let it go to down now util just a few % and fully load it again then.
The reason why I normally shut the tablet completely down when I do not plan to use it for several hours, is that the battery drains when the tablet is 'sleeping', but when I shut it down completely it later starts up at the same level when I shut it down.
This sees to be an issue Asus had to solve (you could read about it all over the internet when I fist noticed it) but as usual Asus is only intrested in upgrading its latest models and soon abandons active support for what they consider "older" models.
However, I do not buy a new tablet every few months. I consider a tablet old after maybe 3 years or longer.
To continue the battery issue: Also, when I shut the tablet down when docked both battery levels have changed when I start it again. To avoid these battery annoyances I often shut it down.
Sent from my Transformer TF101 using xda app-developers app
Well the battery stats part is debatable really, but you need root as far as I know, so you can ignore that part.
About the battery draining while sleeping, I've heard other people having that issue. Not sure if it was ever solved... I haven't had that issue.
Last case scenario would be to make sure it's not a software issue by doing a full factory reset with something like Easyflasher. Corrupted files happens, and there's no easy way to "fix" it. Make sure you backup all important data as easyflasher will completely wipe your device clean, but it's the best way to confirm it's a software-related issue.
Hi,
A cold reboot did it!
For those of you that are as afraid of a factory reset as I am: a cold reboot does not wipe any of your data. You press the 'on/off' button together with 'volume down' button for about 10 seconds. You will see some small print and some unfamiliar pics on your screen. Ignore everything, because a cold reboot is the default thing that will happen.
When your Transformer has booted after this, several things have changed for the better, including your battery indication.
If this instruction is not clear enough, google for 'cold reboot Transformer'.
For me it worked and I found it to be fool-proof.
Sent from my Transformer TF101 using xda app-developers app