I recently diagnosed my TFDOCK with the early battery syndrome. I sent the dock into asus service for my RMA and they returned it with the updated chipset (or so it would seem). I did the battery test again to verify (turn off TF101 while docked, press KB key to turn on) and my TF101 did not turn on as i hoped. This confirms that the RMA was successful and the chipset updated.
Right away i wanted to see if the battery drain issue was resolved. So i charged it up to 100/100, closed the lid (which puts it to sleep) and let it sit overnight. This morning the tablet was at 100, and the dock was at 71. I understand that in standby there must be some drain, but i was expecting something like 0.25% per hour (or something in that range). this was closer to 3% per hour which is quite a bit.
I have read from other threads that this even happens when you turn off the TF101 (full power down). so naturally, now i am concerned that this was not really a battery drain fix at all, just one small part of the fix. I would really rather not have to disconnect the tablet from the dock every time i plan to not use it for a few hours.
So my questions are this then. what are the expected rates of battery drain in different scenarios: standby/off docked/undocked? Does it make a difference if i press the power button for standby vs. just closing the lid? Should i set the wifi disconnect policy to screen off rather than never while plugged in (does docked equate to plugged in)? Is it possible that the prime rom (2.1.1) has some effect on the battery drains. I have the latest dock firmware (EP101-0213) but is it possible that i need to reflash the tablet fw or dock fw (somehow) in order for the updated chipset to be recognized and utilized properly?
NOTE: i waded through a number of battery drain threads and didn't see any answers to these questions. there are a lot of posts though so it's easy for me to have missed one that has the right info. If this is the case please link the thread/post. There are a number of posts that have empirical battery drain data, but none that i have read suggest what is expected (or if one can even expect a standard rate of drain).
Thanks.
SOLVED: my issue related to having the 'always stay on while plugged in' option checked in the development section (and also possibly the wifi disconnect policy to never while plugged in). I have turned both of these off and also installed the auto airplane mode app. Now my batteries barely discharge at all when shut off (and in deep sleep mode). The theory is that the TF101 thinks it's plugged in when you are connected to the TFDOCK, even though there is no actual wall power source. This resulted in the TF101 never going into deep sleep and therefore draining the battery the whole time you think it's doing nothing. I'm not sure how to mark this thread solved, so mods go ahead.
+1 to your questions
My dock does the same thing but even with turning off the tablet while docked over night the dock looses battery.
I'm running revolver.
FYI: I don't have the dock battery drain fault.
seakins said:
+1 to your questions
My dock does the same thing but even with turning off the tablet while docked over night the dock looses battery.
I'm running revolver.
FYI: I don't have the dock battery drain fault.
Click to expand...
Click to collapse
Yeah, I was curious about this as well. My dock doesn't lose that much, but it does seem like it's losing a good bit. Mine tends to drop about 15% every 12 hours. I haven't tried turning the pad off and see what the results are. I do have auto airplane mode setup, and the setting to turn off auto wake.
patsissons said:
I recently diagnosed my TFDOCK with the early battery syndrome. I sent the dock into asus service for my RMA and they returned it with the updated chipset (or so it would seem). I did the battery test again to verify (turn off TF101 while docked, press KB key to turn on) and my TF101 did not turn on as i hoped. This confirms that the RMA was successful and the chipset updated.
Right away i wanted to see if the battery drain issue was resolved. So i charged it up to 100/100, closed the lid (which puts it to sleep) and let it sit overnight. This morning the tablet was at 100, and the dock was at 71. I understand that in standby there must be some drain, but i was expecting something like 0.25% per hour (or something in that range). this was closer to 3% per hour which is quite a bit.
I have read from other threads that this even happens when you turn off the TF101 (full power down). so naturally, now i am concerned that this was not really a battery drain fix at all, just one small part of the fix. I would really rather not have to disconnect the tablet from the dock every time i plan to not use it for a few hours.
So my questions are this then. what are the expected rates of battery drain in different scenarios: standby/off docked/undocked? Does it make a difference if i press the power button for standby vs. just closing the lid? Should i set the wifi disconnect policy to screen off rather than never while plugged in (does docked equate to plugged in)? Is it possible that the prime rom (2.1.1) has some effect on the battery drains. I have the latest dock firmware (EP101-0213) but is it possible that i need to reflash the tablet fw or dock fw (somehow) in order for the updated chipset to be recognized and utilized properly?
NOTE: i waded through a number of battery drain threads and didn't see any answers to these questions. there are a lot of posts though so it's easy for me to have missed one that has the right info. If this is the case please link the thread/post. There are a number of posts that have empirical battery drain data, but none that i have read suggest what is expected (or if one can even expect a standard rate of drain).
Thanks.
Click to expand...
Click to collapse
I'm having drain problems with my dock. If I turn off with the keyboard attached and then press a key, the transformer wakes up. So does this mine has the problem and needs the update?
1)Who do I contact to get the mod done , I'm in the UK
2) Can I just send the dock?
3) How long does it take
thanks
patsissons said:
I recently diagnosed my TFDOCK with the early battery syndrome. I sent the dock into asus service for my RMA and they returned it with the updated chipset (or so it would seem). I did the battery test again to verify (turn off TF101 while docked, press KB key to turn on) and my TF101 did not turn on as i hoped. This confirms that the RMA was successful and the chipset updated.
Right away i wanted to see if the battery drain issue was resolved. So i charged it up to 100/100, closed the lid (which puts it to sleep) and let it sit overnight. This morning the tablet was at 100, and the dock was at 71. I understand that in standby there must be some drain, but i was expecting something like 0.25% per hour (or something in that range). this was closer to 3% per hour which is quite a bit.
I have read from other threads that this even happens when you turn off the TF101 (full power down). so naturally, now i am concerned that this was not really a battery drain fix at all, just one small part of the fix. I would really rather not have to disconnect the tablet from the dock every time i plan to not use it for a few hours.
So my questions are this then. what are the expected rates of battery drain in different scenarios: standby/off docked/undocked? Does it make a difference if i press the power button for standby vs. just closing the lid? Should i set the wifi disconnect policy to screen off rather than never while plugged in (does docked equate to plugged in)? Is it possible that the prime rom (2.1.1) has some effect on the battery drains. I have the latest dock firmware (EP101-0213) but is it possible that i need to reflash the tablet fw or dock fw (somehow) in order for the updated chipset to be recognized and utilized properly?
NOTE: i waded through a number of battery drain threads and didn't see any answers to these questions. there are a lot of posts though so it's easy for me to have missed one that has the right info. If this is the case please link the thread/post. There are a number of posts that have empirical battery drain data, but none that i have read suggest what is expected (or if one can even expect a standard rate of drain).
Thanks.
Click to expand...
Click to collapse
I did the same test a while back, and I cannot recall what ROM I was using, but after the overnight test, my dock was at 95 percent. Maybe your CPU doesn't deep sleep? Try getting CPUSPY off of the market and see what happens..
@wilx I sent mine in to a canadian asus service shop and they had it back to me in about a week. I just sent the dock, they didn't want the tablet. Not sure who you need to contact, but start by calling your most reasonable asus tech support and they will probably set up an RMA over the phone. I did it all via email, but started here: support.asus.com
Thanks for the CPUSPY idea, i grabbed it and did a quick 5 minute test. it's now evident that my transformer was NEVER going into deep sleep mode. I believe the culprit is that i have the 'always stay on while plugged in' option checked in the development section. My theory is that the transformer is near oblivious of the dock and assumes that because the dock can provide power that the TF is plugged in! as soon as i disabled this option i could start going into deep sleep mode. I also moved the wifi disconnect policy to screen off (for the same reasons). I will do a quick charge tonight and then again let it sit turned off all night to see the difference this makes. I suspect that this will fix the issues i have been having.
UPDATE: starting at 100 and 98, after 9 hours, the batteries were at 97 and 89. So i lost a collective 12%. A little more than i was hoping but still very reasonable. 72% of the 9 hours was in deep sleep mode. roughly 2 collective hours were it woke up (for whatever reason, unclear on why). I had left the TF and dock open but turned off for this test. the next test i will do with the tf closed on the dock (folded) to see if it makes a difference.
For what it's worth, my TF101 has been off the charger for about 48 hours and received about 4 hours of very heavy use during that time. The dock is at 38% and the device is still at 100%.
It's a B40 with a B60 dock (I think) running Revolver 3.11.1.
OP, it looks like you've just solved your problem. While I don't think that my device charges from the dock battery, it does treat it as though it were plugged in to the wall when connected.
just for reference, this suprised me yesterday. i charged both the dock and the tablet last friday morning both to 100%. i didnt turn the tablet off, just closed the lid. my wifi sleep policy is to turn off after lid is closed/screen timeout after 320 secs( using revolver 3.11).
i came back home last night, turned on the tablet. tablet was at 86%, dock was at 99%. thats pretty good going after 3 days of no use.
bob dylan said:
just for reference, this suprised me yesterday. i charged both the dock and the tablet last friday morning both to 100%. i didnt turn the tablet off, just closed the lid. my wifi sleep policy is to turn off after lid is closed/screen timeout after 320 secs( using revolver 3.11).
i came back home last night, turned on the tablet. tablet was at 86%, dock was at 99%. thats pretty good going after 3 days of no use.
Click to expand...
Click to collapse
I used to get this kind of performance with my previous dock so I know it is possible, but now more like the OP..very very poor. I will try some settings (like he never sleep while plugged in possiblity) otherwise I will be on tablet number 2 and dock number 3 soon..
@luna_c666 i did notice that i didn't go into deep sleep mode for very long (like 10% of the time) while it was plugged in. So this leads me to believe that leaving the dock plugged in (with the TF docked) will cause the batteries to be used the whole time it is plugged in even after it is fully charged. This suggests that leaving the TF plugged in and docked for LONG periods of time would be damaging to the batteries.
Hi, thanks for the info!
Here is what i have discovered..I AM going into deep sleep, so that isn't the problem, although I haven't run a good bench test I do NOT have any of the 'never while charging' settings on, yet while trying to use a batteryy health tester app it would not let me do the test because my TF was 'charging'..well, my tab battery is 100, and the dock is 96, the TF should not be 'charging' IMO, I thought it only charged while the tab was <95%? Yet it wouldn't let me run the test because it said I was 'charging' while the dock ws being used.
I also tried to find the 0209 firmware, unsuccessfully, so if nyone has a link to that I would love to bench test the dock with this firmware, however I am on 0213, and I tried with revolver parts to 'roll back to old driver' to fix battery drain in the options, and it did not change the firmware number so I am not sure if it DID or DIDN'T?
Hmm..think my problem is solved?
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I thought patsissons found the fix for my issue that is similar to such battery draining description. But the problem is that I don't have the stay awake while charging enabled and I have the power savings enabled. When my tablet is completely off and connected to the dock/keyboard, the dock's battery gets drained like crazy just equivalent of luna_c666 is describing. So every time I'm done using the tablet and dock, I would have to disconnect the tablet and the dock to prevent the dock's battery from discharging while not in use. And I'm not referring to deep sleep mode. Deep sleep mode still has the same issue, even after the infamous dock RMA fix.
Have you tried using "Better Battery Stats" from the store. It's confusing at first but it can help you learn what app is creating a lot of wakelock requests.
There is a high chance you have a misbehaving app that is waking the device up and doing things. When this occurs, the battery will be drained from the dock since the tablet is designed via hw to always get a full charge when the dock is present.
Ive looked all over and cant find a reason so Im asking here. Ive done a few tests and noticed that over about 8 hours of non use and when the dock has a charge, i only lose about 2-4% of the battery. However when my dock is at 3%, my tablet depleats about 8% over those 8 hours when docked. My dock doesnt have the issues other people had before with it not allowing deep sleep and waking up the tablet. Also, if my tablet is undocked then its the normal 2-4%. It just seems that after my dock is almost fully depleated, it uses more of the tablet batter. Is that normal and is anyone else noticing this? Thanks.
amcottre said:
It just seems that after my dock is almost fully depleated, it uses more of the tablet batter. Is that normal and is anyone else noticing this? Thanks.
Click to expand...
Click to collapse
It is normal that the tablet will use more battery to sustain the keyboard as well as itself.
sbliner said:
Have you tried using "Better Battery Stats" from the store. It's confusing at first but it can help you learn what app is creating a lot of wakelock requests.
There is a high chance you have a misbehaving app that is waking the device up and doing things. When this occurs, the battery will be drained from the dock since the tablet is designed via hw to always get a full charge when the dock is present.
Click to expand...
Click to collapse
I second this advice - I had a problem a few months ago with my TF101 draining the battery unusually fast, like about 50% overnight.
With the aid of Better Battery Stats I was able to track the problem down to the avast!Mobile app I have installed. A recent update appeared to have defaulted a CPU Wakelock option to ON rather than OFF, which had the result of keeping the CPU running, even when the tablet was supposedly asleep.
Mike_NZ said:
I second this advice - I had a problem a few months ago with my TF101 draining the battery unusually fast, like about 50% overnight.
With the aid of Better Battery Stats I was able to track the problem down to the avast!Mobile app I have installed. A recent update appeared to have defaulted a CPU Wakelock option to ON rather than OFF, which had the result of keeping the CPU running, even when the tablet was supposedly asleep.
Click to expand...
Click to collapse
I've since also started using GSAM Battery Monitor
https://play.google.com/store/apps/details?id=com.gsamlabs.bbm
It's a lot easier to link the battery usage to the app.
sbliner said:
I've since also started using GSAM Battery Monitor
https://play.google.com/store/apps/details?id=com.gsamlabs.bbm
It's a lot easier to link the battery usage to the app.
Click to expand...
Click to collapse
Installed and on test. Thanks.
Related
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.
First, just to clarify the dock battery drain problem is:
With the tablet locked into the dock, and turned off (not standby), the dock battery loses power at a rate of about 2% per hour. This occurs with the tablet off, but locked into the dock. There is a nice long thread about it here.
I went to my local Asus service repair center. I talked to them about the dock battery drain issue. They said they would be willing to look into it, and if my dock has a problem repair/replace.
With that being said, I have not seen a single post of someone saying either 1) they don't have the dock battery drain problem, or 2) they hand the problem successfully repaired by Asus.
If you have do not have the dock battery drain problem, or have had it successfully repaired, Please reply to this post.
I need to know if it is going to be worth the time to let Asus take a look at my dock. I already have a B60 model dock, so I'm not going to get an upgrade to a newer model out of the deal. I don't want to give them my tablet, just to hear back that there was nothing they could do or give me a new keyboard which also has the problem.
So, should I let Asus check to see if I have a dock battery drain problem?
Also, as a heads up, I asked them about replacement USB/charging cables. The service department doesn't have any, and they will call the Shanghai distribution center about ordering some. They said they will call me back Monday and let me know if they can get any. If I can get some extra cables, I will let you know.
Mine seems fine now only about 8% drain during the same amount of hours, Had 0209 update installed but received a minor dock update last Tues, did'nt realise what it was for but after, no drain on dock when connected and closed. All the batch numbers will be the same hardware B3-B6 it will be a software issue, my update popped up as a notification, just installed and bingo.
PS to the above, I leave all radios on GPS WIFI etc, same with my HTC desire HD and Ipad, this will account for the minimal drain. Also I would imagine when docked if the tab loses 1% because of the process of regarging from the dock, it may take more than 1% of dock power to replace it. I mean the collective power of the dock plus the energy need to transfer full power back to the dock might not be equal, if the pad was flat and you had 80% in the dock if you closed it, my guess is you would only get 60% after transfer back to the Tab.
Do you have any information on what that minor dock update is, or where you got it? Also what country do you live in, and which rom do you use?
Strange. Most people with B60 docks are reporting no drain, or at least less drain.
Is your Tf also B60K?
typci said:
With that being said, I have not seen a single post of someone saying either 1) they don't have the dock battery drain problem, or 2) they hand the problem successfully repaired by Asus.
Click to expand...
Click to collapse
What do the specifications state the drain SHOULD be? As clearly without knowing that, how can anyone know something is outside specification...
Cool, good point about knowing the specifications so I can tell if I am out of spec. However, it's a lithium ion battery. I really hope specifications do not include a drain over 1% a day. If they do I am really really disappointed in Asus. I have plenty of devices that have lithium ion batteries, most of them have battery drain near zero. I have a 5 year old laptop that will drain out the battery in about a week. But that is a very old piece of equipment, not a new computer.
If most people with the B60 are reporting no drain, then that is the answer I need. I have a drain of 2% per hour. If people are reporting less drain, how much drain is the average person experiencing with the B60? Based on the dock battery drain thread, I think it is 2%.
Also, where do you see the posts of people who have no battery drain? I've only seen one post of someone without battery drain, and 1 post of someone with less that 1% per hour.
typci said:
Cool, good point about knowing the specifications so I can tell if I am out of spec. However, it's a lithium ion battery. I really hope specifications do not include a drain over 1% a day. If they do I am really really disappointed in Asus. I have plenty of devices that have lithium ion batteries, most of them have battery drain near zero. I have a 5 year old laptop that will drain out the battery in about a week. But that is a very old piece of equipment, not a new computer.
If most people with the B60 are reporting no drain, then that is the answer I need. I have a drain of 2% per hour. If people are reporting less drain, how much drain is the average person experiencing with the B60? Based on the dock battery drain thread, I think it is 2%.
Also, where do you see the posts of people who have no battery drain? I've only seen one post of someone without battery drain, and 1 post of someone with less that 1% per hour.
Click to expand...
Click to collapse
I'll test my dock tonight.
Just to verify. Im supposed to turn off the tablet completely and keep it docked then record the percentge drop on the tablet after a few hours right?
I got my tF and dock from the first or second batch of shipments I believe. Not sure what version of each I have. how do i go about checking?
starplaya93 said:
I'll test my dock tonight.
Just to verify. Im supposed to turn off the tablet completely and keep it docked then record the percentge drop on the tablet after a few hours right?
Click to expand...
Click to collapse
Record the percentage of both the dock and the tablet before shutting down.
I get the drain as well, B50 on both the tab and the dock. The drain is NOT normal Li-ion drain as it doesn't happen when they aren't docked.
Additionally - to the people that say it's normal to have this much drain with the radios turned on, we mean that the tab is turned OFF. Not screen off, but the entire thing off - as in hold the power button until the pop-up and push the soft turn off button on the screen.
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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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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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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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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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 Guys,
I remember reading a post about this before but can't bloody well find it
With my tablet docked, they keyboard battery is draining much faster than my tablet resulting in a useless dock fairly quickly i.e. 0% in dock vs 80% in tablet. This seems quite a gap - I'm running stock, not rooted. Is there anything I can do to improve this? I don't remember the charge gap being so vast in my first TF700.
Any advice/suggestions are most welcome.
Thanks.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Been discussed before. Dock still operates at 0%, no need to keep a charge in there. It acts as the sacrificial battery, making the tablet use that power first, so if you so choose, you can continue using the tablet w/o dock or with dock and get the maximum battery life both ways.
Thanks Nick, I thought I noticed my keyboard wasn't working before when at 0% but will give it another whirl tonight. If it does work then bravo on Asus
i recently bought the dock and i also find the battery drain rather strange. i always turn off wifi over night and the battery of the tablet usually stays exactly the same, e.g. if i fully load the tablet before going to bed, i have like 99% in the morning without any drain.
yesterday i went to bed with dock 80% and tablet 85% and wifi off. today i find the dock left with only 40% and the tablet with 82%? is this normal? i guess i have to take them apart all the time over night otherwise it just drains too much
Definitely is not normal - I leave mine docked overnight with wifi *on* and I only get a percentage or two drain...
To start with, 'd look (with CPU Spy) to make sure you tablet is deep-sleeping properly.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
That's odd. Maybe some process kept running overnight.
Check that the following are set:
- GPS to OFF
- IPS+ OFF (set it to IPS mode. + drains 10% or some overnight, even when off.)
- Mode to Power Saving!
- Shut down all active processes (taskmanager has this convenient one click clean.)
- Check that media players have shut down properly in the Settings/Apps/Running apps menu. Also make sure they're not still cached (VLC tends to do that...)
I think that this is normal behavior. I notice that after using the device for a while, when I shut it off the dock battery actually charges the tablet battery. The charge light on the tablet even indicates that this is the case. I believe that is by design.
Dub Tech said:
Hi Guys,
I remember reading a post about this before but can't bloody well find it
With my tablet docked, they keyboard battery is draining much faster than my tablet resulting in a useless dock fairly quickly i.e. 0% in dock vs 80% in tablet. This seems quite a gap - I'm running stock, not rooted. Is there anything I can do to improve this? I don't remember the charge gap being so vast in my first TF700.
Any advice/suggestions are most welcome.
Thanks.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
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The charge light is indicating the tablet is (primarily) running off the dock battery. EDIT: although this is in essence a correct statement, I have paid more attention to it and noticed the dock does indeed charge the tablet (when not in use) -- it's a few percents, but nonetheless, it charges. Mea culpa..
The capacity of the tablet and dock batteries is different, so discharging under load will differ as well. I guess the behavior you are seeing is by design, and, to some extent preferable to the situation I have had since the beginning: my tablet depletes faster than the dock, at least initially, and that was what most of the early adopters were seeing, as well. This of course led to some discussion.
The behavior we noticed seemed somewhat counterintuitive, since it meant we would have less battery capacity on the tablet if we would choose to undock it -- as opposed to your situation, where you have as much battery capacity left on the tablet as possible when you choose to 'travel light'. I'd prefer it that way. ; )
So, the dock depleting significantly faster is nothing unusual nor anything to worry about. I do have to concede, though, that my battery drain is far less than some in here report -- it has been going for three and a half days with moderate use now. (That's OK, I guess, given the fact that I currently am in nightshifts and do not have to time to tinker as much. Even when I *am* tinkering, though, the batteries routinely carry me over two days, easily.)
My dock and tablet have weird battery usage.
So my problem is really weird I think, but maybe you guys can confirm or offer any fixes. I have tried charging the tablet and dock assembled through the dock port and gotten both batteries to 100%, but then while docked, the tablet's battery drains faster and the dock;s remains at 100%. As the tablet's battery gets to around 70%, the dock's will start to deplete but very slowly. The dock will only go to 70%, and the tablet will drain completely to 1% and then shut off even though the dock still has 70%. I then undocked the tablet and just charged the tablet back to 100% without doing any charging to the dock. After docking the tablet, it shows the tablet at 100% and then the dock at 70%. This time the tablet drains to 1% and then shuts off with the dock still at 50%. What's going on here or is it normal or is there a setting that I'm missing? I thought the dock was supposed to extend the tablet's battery life time??
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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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"