Hey guys,
Has anyone figured out a way to limit the charging from the dock to the tablet? As in not for the tablet to charge at 75% battery life, to drop it to say 25% the only charge to 50% to try and preserve the life of the batteries, as it seems the tablet will lose battery life due to a 'constant' charge
like a laptop you can set power settings up so that your laptop doesnt charge unless needed when plugged into the power source.
I just want to know if it can be done
Sent from my Transformer Prime TF201 using xda premium
84DGR said:
Hey guys,
Has anyone figured out a way to limit the charging from the dock to the tablet? As in not for the tablet to charge at 75% battery life, to drop it to say 25% the only charge to 50% to try and preserve the life of the batteries, as it seems the tablet will lose battery life due to a 'constant' charge
like a laptop you can set power settings up so that your laptop doesnt charge unless needed when plugged into the power source.
I just want to know if it can be done
Sent from my Transformer Prime TF201 using xda premium
Click to expand...
Click to collapse
I honestly never thought of this, but I gotta say that's a really good idea. What's the point of charging through the dock if eventually, the battery in the dock is gonna run out? I would love it if anyone could figure this out.
Likewise, i know it's somewhere in the power settings yet its fnding out how to do it, and hopefully you dont have to root it or be running a custom rom, if it could be an app install that does it even better, there are some apps that look at the power consumption yet this one would be to turn off / edit the charge protocol
Sent from my Transformer Prime TF201 using xda premium
From what i have seen even when keyboard dock says no battery (after completely transferring it to tablet) it runs without any problem. It either has some reserve or gets powered by tablet.
Sent from my GT-I9100 using XDA
Gabewalters said:
I honestly never thought of this, but I gotta say that's a really good idea. What's the point of charging through the dock if eventually, the battery in the dock is gonna run out? I would love it if anyone could figure this out.
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Click to collapse
By charging from the dock when the Prime runs down to around 75%, it keeps the Prime charged up longer as in for around 18 hours instead of the 12 hours the tablet alone is rated to deliver.
Even if the keyboard dock becomes completely depleted, it will still work fine as it draws current from the tablet's battery even while it is "charging" the tablet.
The battery in the dock is only there to charge the tablet, it serves no other purpose.
I interpreted the question as 'this mode of operation is bad for the battery cause it can only cope with XXX charge cycles'
I think it's a limitation in the charging circuit that makes it impossible to run off DC input only (with the battery offline), and the battery technology prohibits a constant float charge of the cells.
It might be possible to tweak the end-of-charge current to closer match the 'on' consumption of the tablet (but in what state), so 95-99% charge takes much longer, but probably only in the kernel. It's not worth the effort for my money...
ksekhar said:
From what i have seen even when keyboard dock says no battery (after completely transferring it to tablet) it runs without any problem. It either has some reserve or gets powered by tablet.
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
Pretty sure it just draws power from the tablet once the dock battery is dead.
Sent from my ADR6425LVW using XDA Premium.
you're right on the money,
so that i could leave it plugged in for extended amounts of time, I dont want the battery life to die out before i get a good amount of use out of it
I have started to notice it is already not last the 18 -19 hrs as promised and ive had mine for about 3 months
Sent from my Transformer Prime TF201 using xda premium
Related
Hadn't used my dock for a couple of days and plugged in my Prime tonight to see how the dock held its charge. I was impressed to see the dock at 98%, which is right where I had left it. That's about perfect.
Just thought I'd make note of a significant positive.
Sent from my Transformer Prime TF201 using Tapatalk
Great findings can't wait for arrival of my dock
Sent from my Transformer Prime TF201 using xda premium
build quality on my dock sucked. the small screws in the bottom holding it all together werent flush, im returning it tomorrow and asking for a replacment, other than that its awesome!
may I note that when the prime is docked it does not go into deep sleep thus reducing the total battery life if you kept the 2 seperate...
Sent from my Transformer Prime TF201
Wordlywisewiz said:
may I note that when the prime is docked it does not go into deep sleep thus reducing the total battery life if you kept the 2 seperate...
Sent from my Transformer Prime TF201
Click to expand...
Click to collapse
Yes, that's something that ASUS needs to resolve. I get about 1.5%/hour usage when the Prime is docked and closed (and thus on standby), vs. about .25%/hour on standby for the tablet by itself.
That's better than what I get with my original Transformer when it's docked, which is closer to 2.5%/hour usage. But, it would be great if ASUS can figure out a way for the dock to not stop the tablet from entering deep sleep.
Wordlywisewiz said:
may I note that when the prime is docked it does not go into deep sleep thus reducing the total battery life if you kept the 2 seperate...
Sent from my Transformer Prime TF201
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Click to collapse
that's very disappointing to hear actually...
theoilman said:
that's very disappointing to hear actually...
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Click to collapse
I don't see it as that much of a problem. If there's truly something about the dock that makes deep sleep on the tablet impossible (I have no idea if there is or not, and it really does remain to be seen), it's not an unreasonable solution to simply store them separately. Even carrying them separately isn't a problem, really.
I do hope that ASUS can enable deep sleep when docked, but if they can't it doesn't really reduce the usefulness of the dock for me. In fact, I use my tablet by itself the majority of the time in any case and thus tend to keep the two separate.
The fact that the dock maintains its charge when undocked is far more important to me, and it does that quite well.
Just a guess but I would assume it doesn't enter deep sleep because it will turn on the screen when you open it. If it is docked and you close it, the screen shuts off but it still needs to monitor the dock to see if you open it again. It would be nice to have an option to have it conserve power (as if it isn't docked) and you have to manually turn the screen on again.
wynand32 said:
I don't see it as that much of a problem. If there's truly something about the dock that makes deep sleep on the tablet impossible (I have no idea if there is or not, and it really does remain to be seen), it's not an unreasonable solution to simply store them separately. Even carrying them separately isn't a problem, really.
I do hope that ASUS can enable deep sleep when docked, but if they can't it doesn't really reduce the usefulness of the dock for me. In fact, I use my tablet by itself the majority of the time in any case and thus tend to keep the two separate.
The fact that the dock maintains its charge when undocked is far more important to me, and it does that quite well.
Click to expand...
Click to collapse
I'm not saying it's the end of the world, but one of the attractions of the dock is to make a clamshell shape that will protect the tablet and keys during transport. sucks if it will drain the battery whenever you want to take it somewhere.
Mine does go into deep sleep, make sure in asus customized setting you put it in battery facet dock mode, then the keyboard doesn't wake the tab.
Sent from my Galaxy S2
ravizzle said:
Mine does go into deep sleep, make sure in asus customized setting you put it in battery facet dock mode, then the keyboard doesn't wake the tab.
Sent from my Galaxy S2
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Click to collapse
I didn't know that. Very helpful, I'll check that
I have something setup wrong because my tablet sucks my dock dry in about 3 hours in use - it just never stops pulling the charge from the dock. I only let them sleep together once and it was a disaster ......dock was drained, tablets had rebooted I suppose because it was in some sort of different "mode", it still had life, but it was alien like life!
---------- Post added at 12:12 AM ---------- Previous post was at 12:03 AM ----------
ravizzle said:
Mine does go into deep sleep, make sure in asus customized setting you put it in battery facet dock mode, then the keyboard doesn't wake the tab.
Sent from my Galaxy S2
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Click to collapse
Is that the last setting in that section? I have that box checked.
Hmmm, I don't know then. What is your wifi sleep Policy?
My wifi is set to never.
I last charged my tab on thursday night, its between mostly idle since then(like 3 hours total use since then) still have 77% on tab and 37% dock.
Sent from my Galaxy S2
I'd been wondering how well it would hold a charge while docked, so last night I fully charged both the tablet and dock then left it closed from midnight (UK time.)
It sat on my desk like that until I got home from work at 17:15 this evening, opened it up and the dock was showing 99% and the prime 98% full charge.
I've not changed any of the power settings or docked settings yet, so that's running out of the box (post updates of course.)
Of course it's possible the battery indicator isn't accurately reflecting the amount of charge it's used, but based on those numbers it doesn't seem to be a problem.
Somewhat anecdotal evidence, I'll test it out a bit further this week and see if its actually entering deep sleep (presumably it is.)
bristolmunkeh said:
Somewhat anecdotal evidence, I'll test it out a bit further this week and see if its actually entering deep sleep (presumably it is.)
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This has been my experience as well. The dock does not seem to keep the screen any more awake than when they are not connected. I do love how the screen automatically comes up when you open it and turns off when you close it.
Man I love the two of these things together.
I have the Asus setting checked but my tab is like a vampire and sucks the dock battery dry in just a few hours time. There needs to be a deep sleep setting. It isn't really practical for me to disconnect the dock every time I stop using it. That takes away a good part of the portability aspect.
Sent from my Transformer Prime TF201 using xda premium
rjscott2005 said:
I have the Asus setting checked but my tab is like a vampire and sucks the dock battery dry in just a few hours time. There needs to be a deep sleep setting. It isn't really practical for me to disconnect the dock every time I stop using it. That takes away a good part of the portability aspect.
Sent from my Transformer Prime TF201 using xda premium
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Click to collapse
Do you mean when the Prime is completely charged (which is what this thread is about) or when the dock is charging the Prime? Because the dock battery IS smaller than the Prime's, and thus it will certainly discharge at a faster rate when charging the Prime's battery (until it runs out, of course).
Indeed, the dock shouldn't discharge AT ALL until the Prime is at 70% or less. So, if your Prime is 100% charged and it still sucks the dock battery dry in a few hours, then you're experiencing some other problem.
Again, this is about the Prime and dock both being at 100%, and whether or not the Prime enters deep sleep. It's not about the impact on the dock battery when the dock is actually charging the Prime from a less-than-70% state.
rjscott2005 said:
I have the Asus setting checked but my tab is like a vampire and sucks the dock battery dry in just a few hours time. There needs to be a deep sleep setting. It isn't really practical for me to disconnect the dock every time I stop using it. That takes away a good part of the portability aspect.
Sent from my Transformer Prime TF201 using xda premium
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Click to collapse
I think we have the same dock exactly what happens to me. I am assuming user error, a setting i don't have rught, but I'm not sure where else to check. My wifi is set t to never.
slugbug2010 said:
I think we have the same dock exactly what happens to me. I am assuming user error, a setting i don't have rught, but I'm not sure where else to check. My wifi is set t to never.
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Click to collapse
As I said in the post just before yours, if your Prime is at 70% or less, your dock will charge it which will definitely discharge the dock pretty quickly. If your Prime is at 100%, then it shouldn't be discharging the dock at all. If it is, then something's broken.
wynand32 said:
Do you mean when the Prime is completely charged (which is what this thread is about) or when the dock is charging the Prime? Because the dock battery IS smaller than the Prime's, and thus it will certainly discharge at a faster rate when charging the Prime's battery (until it runs out, of course).
Indeed, the dock shouldn't discharge AT ALL until the Prime is at 70% or less. So, if your Prime is 100% charged and it still sucks the dock battery dry in a few hours, then you're experiencing some other problem.
Again, this is about the Prime and dock both being at 100%, and whether or not the Prime enters deep sleep. It's not about the impact on the dock battery when the dock is actually charging the Prime from a less-than-70% state.
Click to expand...
Click to collapse
Yes, from 100%.
Sent from my Transformer Prime TF201 using xda premium
wynand32 said:
As I said in the post just before yours, if your Prime is at 70% or less, your dock will charge it which will definitely discharge the dock pretty quickly. If your Prime is at 100%, then it shouldn't be discharging the dock at all. If it is, then something's broken.
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Click to collapse
Would there be log file that might shed light, like logcat or something? I don't know enough about this, I'm asking. I do know how to grab logs.
Sent from my Transformer Prime TF201 using xda premium
Hey guys i tried looking through for a bit and didnt find much on this...how is your TFP`s battery life? I`M not too happy to be honest, for instance today my battery is at 20% been on for 6 1/2 hours and havnt really done anything too intensive, mostly just web browsing and downloading apps, played a game for about 5 minutes. My touchpad seemed to get similar if not better battery life... anyone notice this too?
Sent from my Transformer Prime TF201 using xda premium
Man, I have to try to kill the battery in a full days time. And that was before I got the keyboard.
Mr Zulu said:
Man, I have to try to kill the battery in a full days time. And that was before I got the keyboard.
Click to expand...
Click to collapse
I wish, I am at 3% and 7hrs 20m ...this really isnt good at all, brightness is at 50% ..any suggestions? I feel like i should be getting another 2 hours out of this.
Sent from my Transformer Prime TF201 using xda premium
jb9217a said:
I wish, I am at 3% and 7hrs 20m ...this really isnt good at all, brightness is at 50% ..any suggestions? I feel like i should be getting another 2 hours out of this.
Sent from my Transformer Prime TF201 using xda premium
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Click to collapse
It really depends on your setting, or how you use it... but saying that..
it isn't as "good" as Asus advertised, nor some other media/blogs have reported from their "hurried" interviews.
ICS update probably has something to do as well... I really don't think Asus and Nvidia has fully worked out Tegra 3 with ICS yet.
I think in normal use the processor is kept at too high a frequency. I rebooted about an hour ago, and since then mine has spent well over half the time at 1200MHz. Given what I've been doing, that seems like overkill. I think ASUS is still tweaking the power profiles, which might account for the apparent variation between revisions.
Sent from my Transformer Prime TF201 using Tapatalk
plus wifi is a major killer if its set to ON while sleeping, or screen off. when i have wifi off, it lasts much longer
Sent from my Transformer Prime TF201 using xda premium
I've been satisfied with battery life, not that I've timed it.
Sent from my Transformer Prime TF201 using Tapatalk
I've timed it several times. Its your settings. I get longer than what you posted on my 1.6Ghz vipercontrol overclock. Stock settings easily get 9 or more hours. I always have my brightness low as its bright enough. Having it at 50% or more is a waste unless you outside LR have bad vision. At night I know you can't be having brightness up like that or you'll hurt your eyes looking St that bright screen. DISPLAY BRIGHTNESS is the biggest drainer of battery. Along with web surfing, watching flash videos, or streaming movies. If you doing all that, maybe use power savings mode instead. You can still surf web n all that with no problems plus battery will last even longer.
For me, my prime easily gets Asus advertised battery life n more sometimes. If I can run a 1.6Ghz overclock n get better than what y'all posted then you need to adjust your settings.
As with all battery life situations on Android, make sure you pay attention to the following:
Screen timeout, make sure the screen does not stay on for long when you are not using the device.
Look at your applications that schedule background tasks and auto synchronizations as well as the sync settings in your Accounts & Sync. Don't sync data that does not need to be sync'ed.
Use the balanced performance mode most of the time.
Turn off features that you do not need, such as GPS or bluetooth, if you are not using them.
Under developer options turn off 'animation scale' settings. This will make moving around menus more snappy since there's no transition time and it also saves a little bit processing power if you move around in Android menus a lot.
If you do not use WiFi, keep it off or at least turn off available network notifications so it would not constantly search for them.
kristovaher said:
[*]Under developer options turn off 'animation scale' settings. This will make moving around menus more snappy since there's no transition time and it also saves a little bit processing power if you move around in Android menus a lot.
Click to expand...
Click to collapse
On ICS it should be done by GPU, so I think it will affect battery life very, very little.
My concern is more about the keyboard/dock battery life.
It seems to drain a lot faster than the tablet and it never stays long at 100% ; always fall to 99 or 98% although the tablet is not under 90% yet.
I wonder if this is because I first charged the dock alone instead of charging it with the tablet on it.
Anybody sharing these feelings with me ?
I would say the reason is that dock always charges the tablet. I've also notified that dock's battery is empty in the morning if I left tablet and dock together during a night.
RighZ said:
My concern is more about the keyboard/dock battery life.
It seems to drain a lot faster than the tablet and it never stays long at 100% ; always fall to 99 or 98% although the tablet is not under 90% yet.
I wonder if this is because I first charged the dock alone instead of charging it with the tablet on it.
Anybody sharing these feelings with me ?
Click to expand...
Click to collapse
Please use search, the 98%-99% thing has been discussed and asked over and over again for ages. Your battery never stays at 100%, neither the tablet or the dock.
Once battery reaches 100%, it stops being charged, otherwise it can damage the battery.
Dock battery discharges quicker because the dock battery is smaller than the tablet battery. The dock does not 'double' the battery life.
As of TF201 (differently from original TF101), dock starts charging the tablet once tablet falls near 70%. This makes sure that battery on the tablet (and dock) are used more efficiently and lasts longer (it goes through less cycles in the end). While this means that dock does not keep tablet at 100% all the time (so you can remove the tablet at 100% always), it does mean that battery life will not diminish as quick as before and you're prone to less hardware problems in battery in the long run.
jb9217a said:
I wish, I am at 3% and 7hrs 20m ...this really isnt good at all, brightness is at 50% ..any suggestions? I feel like i should be getting another 2 hours out of this.
Sent from my Transformer Prime TF201 using xda premium
Click to expand...
Click to collapse
The 50% brightness is most likely why you are seeing lower than expected battery life. Also, you should be in power saving mode if you are wanting to extend the battery as long as possible.
ASUS claims the Prime's battery lasts 12 hours using the following criteria: "Battery life tested under power saving mode, playing 720p video playback, Brightness:60nits, default volume with headphones."
http://usa.asus.com/Eee/Eee_Pad/Eee_Pad_Transformer_Prime_TF201/#specifications
Not sure what 60nits corresponds to on the brightness selector but I am assuming it is low.
jordache16 said:
The 50% brightness is most likely why you are seeing lower than expected battery life. Also, you should be in power saving mode if you are wanting to extend the battery as long as possible.
ASUS claims the Prime's battery lasts 12 hours using the following criteria: "Battery life tested under power saving mode, playing 720p video playback, Brightness:60nits, default volume with headphones."
http://usa.asus.com/Eee/Eee_Pad/Eee_Pad_Transformer_Prime_TF201/#specifications
Not sure what 60nits corresponds to on the brightness selector but I am assuming it is low.
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Click to collapse
Yeah , 60 nits is very low, especially since prime Max brightness is significantly way higher than that. Like 380 nits(unit of measurement for brightness) or more. BRIGHTEST tablet/display on the market today.
After posting last night I messed with YouTube and browsed for about an hour and only lost about 5% or so. Seems good to me.
Sent from my Transformer Prime TF201 using Tapatalk
kristovaher said:
Please use search, the 98%-99% thing has been discussed and asked over and over again for ages. Your battery never stays at 100%, neither the tablet or the dock.
Once battery reaches 100%, it stops being charged, otherwise it can damage the battery.
Dock battery discharges quicker because the dock battery is smaller than the tablet battery. The dock does not 'double' the battery life.
As of TF201 (differently from original TF101), dock starts charging the tablet once tablet falls near 70%. This makes sure that battery on the tablet (and dock) are used more efficiently and lasts longer (it goes through less cycles in the end). While this means that dock does not keep tablet at 100% all the time (so you can remove the tablet at 100% always), it does mean that battery life will not diminish as quick as before and you're prone to less hardware problems in battery in the long run.
Click to expand...
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Sorry, I red and searched a lot already in this forum but I missed that.
Just didn't think there was such a gap between a 22Wh battery and a 25Wh one. Thank you for your answer.
RighZ said:
Sorry, I red and searched a lot already in this forum but I missed that.
Just didn't think there was such a gap between a 22Wh battery and a 25Wh one. Thank you for your answer.
Click to expand...
Click to collapse
I've noticed on both the Prime and my original Transformer that the dock battery does seem to discharge more quickly than expected when charging the Prime. It's not directly proportionate, I don't think, i.e., 22Wh is about 10% less than 25Wh, but I don't think the dock only discharges 10% faster when charging the Prime.
I think there's something about the charging process that makes it less efficient than simply powering the unit. Perhaps some power experts can chime in here and explain it... Certainly, I've noticed that charging the Prime from 70% to 100% can just about completely discharge the dock.
I've noticed the dock discharging faster if it's plugged into my usb port in my PC. I think the media mount takes more power than I thought it would.
When not connected to my PC through usb, the battery life is pretty long when doing regular web browsing and video watching.
Playing games obviously causes the battery to drain faster. Also the brightness also has a large affect on my overall battery life.
As others have said, turning off wifi when you're not using it will massively extend the battery life.
Hey!
I know that it's never a good idea to leave full or empty batteries just stay without use for too long. I don't use TF201 every day and I have it shut down when I don't use it, I am wondering how the battery should be managed and if any of you have any experiences with maintaining your previous devices, like TF101 or others, in similar conditions.
I charge the device after use and then it stays that way a day or two without use due to me not having lectures or enough time off work to play with it. When I do play with it, I don't use more than 20% of battery life and then I dock it with keyboard again (which charges it again even if it is turned off, which is really nice).
Are there any bad side effects of having the device powered off and not used for a day or two? Or letting the keyboard charge the device while it is powered off? Or leaving it in charged state for a few days?
Since I cannot change the battery on TF201, I am super OCD about the battery situation to make sure it works properly throughout the ~2 years I'll be using it.
Thanks!
I let it drain completely then recharge it. I don't power it off, just let 'er sleep in between work, driving, eating, etc.
Moderate usage will give me a couple days worth out of it. Charge during sleepy time, wake up, disconnect, repeat.
I found this article very interesting on batteries. Debunked alot of myths surrounding the type of battery we have.
http://forum.xda-developers.com/showthread.php?t=1168036
demandarin said:
I found this article very interesting on batteries. Debunked alot of myths surrounding the type of battery we have.
http://forum.xda-developers.com/showthread.php?t=1168036
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Click to collapse
Really good article, thanks!
Problem is that TF201 is a special puppy, since its dock recharges the tablet even when tablet is shut off. It's not recomended to keep the battery 'full' nor 'empty' and problem with TF201 is that it keeps tablet full or drains the dock while keeping tablet full, even if tablet is shut down.
I am just wondering if this behavior is bad for battery life in the long run if I don't use it for a few days (I certainly won't keep it 'on' for days and not use it, this will certainly make it go through more recharge cycles in the long run).
That article is good for managing a single-battery device, but since tablet with dock takes over a lot of charge-or-not decisions, it's a little different.
It's basically question about which is worse, going through definite amount of recharge cycles quicker because it is on and needs to be charged every now and then or letting it shut down and used when needed like a laptop.
Maybe I'm thinking too much and it doesn't really matter, but it just made me curious since I never had TF101, so I can't really rely on that experience.
We can buy the TF201 battery, can't we?
If yes, I don't think you should worry much.
Within a year or two, the battery should be still in perfect or near perfect condition.
If not, then buy a new battery.
By that time frame, most of us would have been buy a new tablet anyway
Make sense? no?
gogol said:
We can buy the TF201 battery, can't we?
If yes, I don't think you should worry much.
Within a year or two, the battery should be still in perfect or near perfect condition.
If not, then buy a new battery.
By that time frame, most of us would have been buy a new tablet anyway
Make sense? no?
Click to expand...
Click to collapse
TF201 battery is not user-replaceable. It needs to be done by ASUS or you're breaking warranty. I don't even think ASUS will sell these batteries.
kristovaher said:
TF201 battery is not user-replaceable. It needs to be done by ASUS or you're breaking warranty. I don't even think ASUS will sell these batteries.
Click to expand...
Click to collapse
Ok, thanks for the info, I did not know that.
But still, if I have a tablet, I won't keep it for more than 2 years most probably
And on my experience, for two years, battery will still be good.
gogol said:
Ok, thanks for the info, I did not know that.
But still, if I have a tablet, I won't keep it for more than 2 years most probably
And on my experience, for two years, battery will still be good.
Click to expand...
Click to collapse
Yeah, possible. I'll shake that OCD'ness off me then I suppose. I've just always had user-replaceable battery Android devices simply because I don't pay attention to how badly I mistreat the battery, I can always replace it. But with TF201 I have to pay some attention
Is there a way to signal the keyboard dock to start charging only when the tablet has 20% charge left?
I leave the dock connected all the time and the tablet is constantly being charged by the dock.
the lithium ion battery is fine you can let it sit for months and months, you can charge it every 5 minutes, you dont have to let it drain out or manage it just let it do its thing!
Hi boys and girls!
I bought a TFP (with sn: C3O) less than a week ago from NetOnNet in Sweden. I'm loving it! Damn what a piece of hardware . But I did notice one thing. The only problem I had with it. When docked and sleeping, the battery would drain insanely fast!!
I found that many ppl pointed at the option; "Stay Awake - Screen never sleeps while charging". But making sure that it's unticked doesn't seem to be enough. After digging some more online. I found that ticking it and then unticking it again made all the difference! . And it did for me too!
I went from losing (not actual numbers) 12% battery/hour to losing only 0,2%/hour. Hope this info helps. And if it does, spread the word! .
Edit: I polished the numbers abit. My Prime is crazy efficient nowadays, and have been ever since the fix . I just wanna add that you MAY have to redo the fix after installing a new firmware.
I'm sorry but where exactly is this stay awake option?
Sent from my Transformer Prime TF201 using XDA Premium HD app
Nevermind, it's in Developer Options (A quick google was enough )
currydude said:
I'm sorry but where exactly is this stay awake option?
Sent from my Transformer Prime TF201 using XDA Premium HD app
Nevermind, it's in Developer Options (A quick google was enough )
Click to expand...
Click to collapse
Ahh yes, sorry bout that! I dont have me TFP here atm but it's in the Settings and then Developer Options. Me thinks atleast :$. It's the one that whines that performance may suffer if you tamper with them .
EDIT: Oh lol. Just saw that you Googled it >.<.
Mr_President said:
Hi boys and girls!
I bought a TFP (with sn: C3O) less than a week ago from NetOnNet in Sweden. I'm loving it! Damn what a piece of hardware :O. But I did notice one thing. The only problem I had with it. When docked and sleeping, the battery would drain insanely fast!!
I found that many ppl pointed at the option; "Stay Awake - Screen never sleeps while charging". But making sure that it's unticked doesn't seem to be enough. After digging some more online. I found that ticking it and then unticking it again made all the difference! :O. And it did for me too!
I went from losing (not actual numbers) 8% battery/hour to losing only 0,5%/hour. Hope this info helps. And if it does, spread the word! .
Click to expand...
Click to collapse
I can confirm that this works, did it last night and no drain overnight.
fazerrider said:
I can confirm that this works, did it last night and no drain overnight.
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Click to collapse
Awesome! . Nothing better than the feeling of helping others. If you install a new firmware you might have to redo the fix. Not sure about that since my came with the latest version available.
im still quite new to the tablet, can i just confirm that people are seeing this drain when the tablet is shutdown with a battery below 70%?
or is this happening when the tablet is left on and the dock is just emptying?
Hawke84 said:
im still quite new to the tablet, can i just confirm that people are seeing this drain when the tablet is shutdown with a battery below 70%?
or is this happening when the tablet is left on and the dock is just emptying?
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Yes, below 70% the dock kicks in and drains to 0% or something like 30%.
I think that depend on how low the tablet was and I think the dock stops charching the tablet when it has reached around 90%?
Shis really sucks, I would like to be able to stop the dock to auto-charge. That way I would be able to keep battery levels identical as when undocked and the tablet should only be charged when it's docked and in use.
Will this option ever be possible in stock or custom rom? Or is this "hardware-coded"?
Hawke84 said:
im still quite new to the tablet, can i just confirm that people are seeing this drain when the tablet is shutdown with a battery below 70%?
or is this happening when the tablet is left on and the dock is just emptying?
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For me the problem existed because the setting, Stay Awake, was "stuck". Which means that when the dock is connected to the tablet. The tablet thought that it was being charged, so it stayed awake. Using up lots of battery 24/7. Even when it was just idle/locked. And when the battery in the tablet dropped below 70% then the dock started charging it.
Problem is that since the tablet was using up lots of power, the docks power got drained. Cause it never managed to get the tablets power to 90%. At 90% it would've stopped charging it til the tablets power would've dropped below 70% again. Whew. Hope this answers your question .
I'm thinking that you could have the tablet and dock connected but instead of having them idle/locked you could turn them off completely. Should work. But that's not very practical now is it? =/.
Thanks will try this out!
pvdwaal said:
Yes, below 70% the dock kicks in and drains to 0% or something like 30%.
I think that depend on how low the tablet was and I think the dock stops charching the tablet when it has reached around 90%?
Shis really sucks, I would like to be able to stop the dock to auto-charge. That way I would be able to keep battery levels identical as when undocked and the tablet should only be charged when it's docked and in use.
Will this option ever be possible in stock or custom rom? Or is this "hardware-coded"?
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Click to collapse
I believe there is an option in the dock settings to change what percentage it starts to charge the tablet I'm not positive though because I don't have my prime in front of me but do remember seeing something about it.
Again I could be wrong but I'm pretty sure you can change it.
Sent from my PC36100 using Tapatalk
Frostbiter said:
I believe there is an option in the dock settings to change what percentage it starts to charge the tablet I'm not positive though because I don't have my prime in front of me but do remember seeing something about it.
Again I could be wrong but I'm pretty sure you can change it.
Sent from my PC36100 using Tapatalk
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I don't think there is, I can't find one
Sent from my HTC Sensation XE with Beats Audio using xda premium
Hawke84 said:
I don't think there is, I can't find one
Sent from my HTC Sensation XE with Beats Audio using xda premium
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Me neither..that's the main reason I asked
But...stilll..... it could solve all my (and many others) dock-drain-problems
If this has been talked about i missed it, but i thought as on my og transformer that when the dock and tablet was at 100% that the dock would drain all the way down to 0 and then the tablet would use it's own battery... but as I'm seeing the dock will use it's battery to charge the tablet back up to about 90%, and to me it's just not as good as the old way... any info regarding this matter would be helpful... thanks alot in advance..
Sent from my Transformer Prime TF201 using XDA Premium HD app
KingDavid63 said:
If this has been talked about i missed it, but i thought as on my og transformer that when the dock and tablet was at 100% that the dock would drain all the way down to 0 and then the tablet would use it's own battery... but as I'm seeing the dock will use it's battery to charge the tablet back up to about 90%, and to me it's just not as good as the old way... any info regarding this matter would be helpful... thanks alot in advance..
Sent from my Transformer Prime TF201 using XDA Premium HD app
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There is a ton of information about this throughout the forums. Use the search function next time.
What you will find is that due to the batteries being Lithium-Polymer, the dock (and the wall charger, for that matter), will charge the tablet only when the tablet reaches at least a 30% drain. At that time, it should recharge it back to 100%. This will keep the LiPo batteries from damaging short cycles.