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[Q] Tablet and Keyboard Dock battery drains when turned off???

I have had the tablet and the dock battery's drain all the way while connected and with the tablet turned off. I do have the latest firmware for the tablet and the dock.
Has anyone else had this issue?

The battery dock still has draining issues, even while off. I'm not sure why your tablet drained as well -- perhaps the dock started to charge it and tablet turned on due to it? or maybe the tablet started to charge the dock while it was draining and ended up both being dead.

yeah Im really not sure what happened but I do know when I went to turn on the tablet it started up and only had about 13% battery left when it was fully charged when I turned it off.

Check your wireless disconnect policies, if its set to Never then that might explain why.
Sent from my Transformer TF101

frosty5689 said:
Check your wireless disconnect policies, if its set to Never then that might explain why.
Sent from my Transformer TF101
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Im not sure where to check that.

OFF as in you held the power button until it asked if you wanted to shut off, or SLEEP, as in just tapped the power button (or lock button on the keyboard)?
The Lock key on the keyboard, or just tapping the power button puts the unit in SLEEP, which is not really sleeping, it just turns off the screen and depending on your wireless power policy, WiFi may still be on. Apps still run. Stuff still communicates with the interwebs.

off as in i held the power button and hit shut down.

Mine is doing it as well. Did a complete shutdown yesterday after fully charging both the pad and dock. Just turned it on and the dock is blinking orange. I also had the WiFi disabled. Even when you do a shutdown it seems something is not shutting down.
-M

ASUS never said that they fix the dock battery drain issue while tablet is docked and powered off. Have they?

oicu812 said:
ASUS never said that they fix the dock battery drain issue while tablet is docked and powered off. Have they?
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im not sure. At least i know its not just me.
I hope they push the update where we can see the battery live for the dock soon.

Mine is doing the same thing. Keyboard was charged when I closed the lid and then blinking 6 to 8 hrs later. Wasn't doing this with firmware .12 with the keyboard battery indicator. I really hope they bring back some of the .12 features soon.
Sent from my PC36100 using Tapatalk

My keyboard dock no longer seems to hold much if any charge, I left it charging yesterday until the keyboard dock light stopped flashing and stays on steady (I assume that means its full) and now 4 hours later the keyboard dock light is flashing and no longer charging the tablet.

if i recall, this is a known issue with the dock. When not in use, it will still drain the battery. If plugged into the tablet at the time, im pretty sure the tablet will drain also. I think asus is aware and i thought i saw somewhere that there will be a fix once 3.1 is out, that will put the dock into a very low power state when not in use.
so i guess we will see once 3.1 is out

friedgoldmole said:
My keyboard dock no longer seems to hold much if any charge, I left it charging yesterday until the keyboard dock light stopped flashing and stays on steady (I assume that means its full) and now 4 hours later the keyboard dock light is flashing and no longer charging the tablet.
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I believe only Solid Green is full.

Interesting I've only when seen a solid orange light, perhaps that just means charging, will try again tonight.
Sent from my HTC Desire using XDA Premium App

Same issue. Had a fully charged dock and a partially charged Transformer.
Was very pleased to see the tablet start to charge when I docked it, and not so pleased when I got up in the morning and both were dead.

Gary13579 said:
Tablet and Keyboard Dock battery drains when turned off
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Leave it turned on then

Just for the record, I have the same issue. Dock battery drains really quickly when turned off and in sleep mode.

checkbox111 said:
Leave it turned on then
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Click to collapse
that might be a good idea it might not drain as fast!

Does it help if I leave the tablet and the dock disconnected when turned off?

8.6.5.13 firmware installed and still having dock\tablet battery issue.. . .

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
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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)
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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
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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.
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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
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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).
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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
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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!

[Q] Battery or charger at fault?

I have a locked & unrooted WW TF700 & genuine dock on JB 4.2.1.
A week ago I started to notice an issue where the tab would constantly drain whilst it should have been asleep. Overnight it would loose ~30% instead of ~2%. I tried a few settings, but couldn't seem to solve it. I decided to do a factory reset because I haven't done one since I last upgraded to jelly bean. That appears to have cured that problem, but has created two more.
The first problem is that I can't seem to charge the tab over 81% when being charged directly. If I then plug it into a fully charged dock it will charge to 90% but no more, even with the charging cable in the dock.
The second problem is that the tab now decides to shut off at about 30% battery left. It won't shutdown as normal, just go blank and won't boot up again without being charged a little first. I have read threads about artificially overcharging the tab, but a symptom of that is the battery level will remain at 100% for hours before starting to drain normally. My tab won't charge to 100% and will start to drain immediately after removing the charging cable. Regardless I have tried to drain and recharge overnight with the tab both off and on but the tab won't charge past 76% overnight in either case. Restarting multiple times doesn't help at all.
For the first issue I started to suspect the charger may be at fault. This is because if I charge the tab directly, it will never get past 81%. However, if I then plug it into the freshly charged dock it will charge upto 90%. I understand that the dock will never charge the tab past 90%, unless it is plugged into the charger. Does it assume in my case that it isn't plugged in to a charger even when it is? I should mention I am using the original asus charger. Frustratingly I can't just use my phone charger to see if it solves the problem due to the 15v of the asus charger. I have noticed a slight hum/buzz coming from the charger but I can't be sure that it didn't do that before. I have had issues with the internal connections not be pushed together quite right before and getting no charge out of it, but 'clicking it together' a bit more firmly did the trick there.
Even with an overnight charge, plugged into the dock to get it to 90% I now get terrible battery life. Roughly 30mins per 10% juice. Previously I was getting around an hour per 10%.
Does anyone have an suggestions for me on how to eliminate the charger as a problem, or say doing another factory reset on a 'full charge'? The only other thing I can think of is to let it drain, give it enough charger to turn back on, then turn it off and leave it unplugged overnight (I saw it mentioned in another thread). I really appreciate any help you can give before I have to try the dreaded warranty route!

Try this with it undocked. Let the battery discharge to zero, and leave it 24 hours.
Then recharge it fully. This seems to cure the battery calibration memory issues.most us know how you get on.

Luckily I have located an Asus charger to borrow and hopefully find out if it is just my charger or not.
I also tried out CPU-Z and the battery is reporting as only having 7mV. I'm sure that can't be correct as my HOX+ is around 3500mV, and 7mV just couldn't power anything. I don't know if this is just CPU-Z issue with reporting correctly, or a clue that there is something not right with my battery? Has anyone else tried CPU-Z or know what the mV should be roughly, fully charged say?

Unfortunately a different charger didn't solve my issue :'(
I've posted a screenshot to show what is happening. I'll try draining the battery flat and leaving 24 hours to see what happens then. Luckily I still have two months left on warranty.
Pretty annoying because everything else the tablet does is fantastic. I replaced my laptop with it and use it daily for everything.
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD

Unfortunately things have become worse. I tried using the tab until it died (at around 50% battery this time...) and left for 24 hours as suggested. Unfortunately now I can't get the tab to turn on or take a charge at all. I have tried holding power button down, with vol up/down, for over a minute etc. Tried the reset button all numerous times with no luck. All I get is the LED blink twice when pressing the power button and this only happens when the charger is connected, otherwise nothing.
I have the phone number for Asus support and will be giving them a call tomorrow. I'm so glad I never unlocked my device!

Gudders said:
Unfortunately things have become worse. I tried using the tab until it died (at around 50% battery this time...) and left for 24 hours as suggested. Unfortunately now I can't get the tab to turn on or take a charge at all. I have tried holding power button down, with vol up/down, for over a minute etc. Tried the reset button all numerous times with no luck. All I get is the LED blink twice when pressing the power button and this only happens when the charger is connected, otherwise nothing.
I have the phone number for Asus support and will be giving them a call tomorrow. I'm so glad I never unlocked my device!
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Leave it for 24 hours not on charge first then try again. We've seen this happen so many times - the fix is to let it discharge completely.

sbdags said:
Leave it for 24 hours not on charge first then try again. We've seen this happen so many times - the fix is to let it discharge completely.
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Thanks Sbdags, I appreciate your response. I've read numerous threads tonight with similar issues. I did try leaving the tab for 24 hours completely dead overnight last night. I'll try it again (I don't know if the battery is dead or not currently) but I'll leave it unplugged as there is nothing else for me to do with it anyway!

OK, I thought I would complete this thread.
After leaving my tablet for a few more days not on charge I could seem to get no life out of it whatsoever so went down the RMA route and the result of that is in the following thread;
http://forum.xda-developers.com/showthread.php?p=45065793#post45065793
Gudders.:crying:

[Q]

So a few days ago my device started to shut down at 15-20% battery. I use an battery app which makes me se how many % it is left on the battery and the original charge meter seems to be consistent with the app. It also doesnt let me start the device again unless I have a charger in. Another wierd thing is that i am not sure it is charging at all because it does not show in the icon sometimes... (I am writing this while making these observations )
I use the docking station mostly, could this mess things up when i only use the device itself?
I docked the device at 16% and after a few min of youtube it just crashed like before, not a regular shut down.
Is the battery busted because I use it constantly for the past 8 months? I mean I put it in sleep mode when I dont use it but I almost never shut it off.
Wierd, I think it stops charging the device if you leave it alone for a while. It shows it charges the docking station though. I would try other power outlets but somehow i feel it is connected to the first issue I had.

Stammis said:
So a few days ago my device started to shut down at 15-20% battery. I use an battery app which makes me se how many % it is left on the battery and the original charge meter seems to be consistent with the app. It also doesnt let me start the device again unless I have a charger in. Another wierd thing is that i am not sure it is charging at all because it does not show in the icon sometimes... (I am writing this while making these observations )
I use the docking station mostly, could this mess things up when i only use the device itself?
I docked the device at 16% and after a few min of youtube it just crashed like before, not a regular shut down.
Is the battery busted because I use it constantly for the past 8 months? I mean I put it in sleep mode when I dont use it but I almost never shut it off.
Wierd, I think it stops charging the device if you leave it alone for a while. It shows it charges the docking station though. I would try other power outlets but somehow i feel it is connected to the first issue I had.
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Sorry stammis but neither your topic nor your post makes much sense to me.
Your problem is with the tablet docked or undocked?????
It may be a battery calibration problem. Some users have solved this by letting the battery drain in sleep or standby for a day or two.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

berndblb said:
Sorry stammis but neither your topic nor your post makes much sense to me.
Your problem is with the tablet docked or undocked?????
It may be a battery calibration problem. Some users have solved this by letting the battery drain in sleep or standby for a day or two.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
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Click to collapse
Yeah i am sorry i am rambling here, i made a new post about the same issue. Its called "power down with 15% battery left"

Phone dies and will not power on until connected to a charger

I have had this odd problem two days in a row and suspect that I have narrowed it down. My phone has died twice with a sufficiently charged battery. When it dies, it is completely dead until connected to a charger. In fact, the first time, the charging indicator didn't come on for awhile after connecting it to the charger. I was sure that it needed to be replaced for while.
Here are some interesting observations.
I am running Cataclysm from 11/26 with ElementalX-0.11 slightly undervolted and configured for USB Fast Charge. When it died today, the battery meter read 71% although I did think that was quite high for how I used the phone. Both times, the phone would not respond to the power button at all. When I have had other phones died, they usually respond and try to boot at least. Because it won't respond at all, I doubt that it is the undervolting.
Has anyone else had this behavior? I saw one other person mention it, but the thread got hijacked to complain about the manufacturer's replacement policies. It may be that the batter meter is completely off and needs to be reset somehow.

Effects of USB Fast Charge
Has anyone had issues using USB Fast Charge? I was using ElementalX kernel which I configured for USB fast charge and used a 2 amp charger. The phone shutoff and would not power on (described below). I do not know, but it seemed to be correlated to switching to a stronger power supply in my car. I was thinking that something was overheating or otherwise having problems.
http://forum.xda-developers.com/showthread.php?p=48188176#post48188176