Charge on demand from dock? - Asus Eee Pad Transformer Prime

So when the tablet is docked, it's not always charging from the dock. This seems like a good idea, probably best to not be constantly running both batts like that. Ok well what if I'm roamin around, and want to dock for 5-10 minutes and get dock power. When it docks, it doesn't automatically start transferring power. Is there anyway to dock it, and force it to initiate the transfer so I can get as much power as possible before I have to undock again? Also this would be when I'm not near wall power, or my charge cable. (I do a lot of server work and I'm back and forth between racks a lot.) Or is there a threshold it looks for to begin? Inactivity for 5 minutes, difference of more than a certain %?

It only charges if the battery is 70% or lower, and charges it up to 90%. I don't know of or am aware of any way to change this though.
Sent from my ADR6425LVW using XDA Premium.

SteveG12543 said:
It only charges if the battery is 70% or lower, and charges it up to 90%. I don't know of or am aware of any way to change this though.
Sent from my ADR6425LVW using XDA Premium.
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Mine seems to charge all the time. The battery in my dock was at 100% and with just a couple of hours of being connected it's down to 59% and the tab is at 88%. Both were at 100%. I noticed this a few days ago and I'm still looking to figure out why this is like this on my combo. The only way to keep my dock from depleting seems to be to remove the tab from it whenever I'm not using it. <shrugs>
Sent from my Transformer Prime TF201 using xda premium

rjscott2005 said:
Mine seems to charge all the time. The battery in my dock was at 100% and with just a couple of hours of being connected it's down to 59% and the tab is at 88%. Both were at 100%. I noticed this a few days ago and I'm still looking to figure out why this is like this on my combo. The only way to keep my dock from depleting seems to be to remove the tab from it whenever I'm not using it. <shrugs>
Sent from my Transformer Prime TF201 using xda premium
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Me too, if I understand what you're saying.
I happened to be taking some screen shots so I was able to go back and see it - my dock drained from around 35% to 0% in 45 minutes.
And maybe I shouldn't do this and I wont do it again (I thought I had done it before) but last night I just left the tablet and dock together, shut and asleep. This morning the dock was dead and the tablet still had .... I don't know but maybe around 80% or so.
It's gotta be a setting.

SteveG12543 said:
It only charges if the battery is 70% or lower, and charges it up to 90%. I don't know of or am aware of any way to change this though.
Sent from my ADR6425LVW using XDA Premium.
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Click to collapse
Just docked it, and it's transferring now. Dock @ 98%, tablet was at 82% when docked.
I'm sure there's a pattern, but it's definitely not charging all the time. If they're both at 100% when i unplug in the morning, the tablet will get down to about 75% before it will start charging an hour or so later. But this isn't consistent. Some times it will be 30 minutes or so in the morning before it's charging with the tablet only down to 90-95 %, or I've seen it drop below 70% before the charge starts.

Huh... Well never mind then! I believe I read that somewhere, and mine does conform to what I posted... Very odd.
Sent from my ADR6425LVW using XDA Premium.

Related

What's the average time your G-Tab 10.1 takes to fully charge?

I leave on charger before going to bed, is this advisable? Would it affect the battery life if it's being charged for longer than required?
Sent from my GT-P7500 using XDA App
M_Shaaban said:
I leave on charger before going to bed, is this advisable? Would it affect the battery life if it's being charged for longer than required?
Sent from my GT-P7500 using XDA App
Click to expand...
Click to collapse
I don't think so, but if you want to be sure, you may just turn it off while it is charging.
What's the average time your G-Tab 10.1 takes to fully charge?
Click to expand...
Click to collapse
from 1% to 100% it is about 5hours
to 100% - 5 hrs...
I notice that my tab charges faster or slower depending on what the tablet is doing. If i am using it, it takes about 1 hr for every 10%, if its on but screen locked it is about 1 hr for every 20%, and if it is off (but plugged into outlet) i notice it is about 25%-30% for every hour. But it depends on your adapter, power fluctuations and etc (lower voltage gives less amps if the power is not consistent)
Around 5 hours on standby mode.. Never realised during off screen charged.. I heard XOOM one charge faster than Tab..
Sent from my GT-P7510 using Tapatalk

Keyboard dock works even when it's completely discharged!

So as the title says, even after my dock exhausted its own battery recharging the ATP, it's still functioning. I'm showing 0! and it's still going strong. For me, that's really awesome that I don't have to worry about whether or not I remembered to charge the dock.
Sent from my Transformer Prime TF201 using xda premium
I noticed this as well
Sent from my Transformer Prime TF201 using xda premium
mletchworth said:
So as the title says, even after my dock exhausted its own battery recharging the ATP, it's still functioning. I'm showing 0! and it's still going strong. For me, that's really awesome that I don't have to worry about whether or not I remembered to charge the dock.
Sent from my Transformer Prime TF201 using xda premium
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Click to collapse
Well, yeah it take power from the tablet to power it.
thats awesome! can't wait to get a dock..if i ever find one in my life time lol.
you can order the keyboard at best buy and pick it up in the store a week later
nevetsvsx said:
you can order the keyboard at best buy and pick it up in the store a week later
Click to expand...
Click to collapse
only the grey one, i have the champagne prime -_-
Last night I found out that the SD card on my dock no longer worked after the dock had given all of its power over to the tablet. Does the sd card slot on anyone else's dock still work after the power in the dock has drained out? The keyboard still worked. I think that what I saw was normal but after seeing this thread I just wanted to make sure.
One thing though. Isn't it bad to deplete lithium ion batteries down to 0? Or does the keyboard dock reserve some sort of minimal charge so it doesn't ruin the Battery?
Mikroft said:
One thing though. Isn't it bad to deplete lithium ion batteries down to 0? Or does the keyboard dock reserve some sort of minimal charge so it doesn't ruin the Battery?
Click to expand...
Click to collapse
i don't know about the prime yet as i don't have one yet, but with the first gen transformer, what they did was once the keyboard is drained to 3% it would stop charging the tablet and use that as reserved
usually that 3% last a couple of days even when the tablet is connected so i'm not sure if the tablet is giving power or not but the keyboard still works
Mikroft said:
One thing though. Isn't it bad to deplete lithium ion batteries down to 0? Or does the keyboard dock reserve some sort of minimal charge so it doesn't ruin the Battery?
Click to expand...
Click to collapse
It's highly unlikely that 0% on the battery meter literally means a complete discharge of the LiIon cells. There is likely 15-20% charge still left in the cells, but the battery reports 0% because to go any lower would risk damaging them. Basically, the manufacturer isn't going to let you damage your device simply by using it in the intended manner.
...and for clarification, these aren't old-school LiON batteries, they're Lithium Polymer...a little different. When the machine is reporting the battery as 0%, it's not actually that low as the above poster has stated. In fact, if your tablet is running when both batteries reach 0%, it smartly uses the little bit of power it has left to shut itself down cleanly.
Li-Po batteries wont go lower than 2.7V but generally kept above that to be safe.
3.0v is the normal safe discharged voltage (per cell), so your 0% reported on the prime is really 3.0v (per cell) ... nowt to worry about its all normal.
3.0v = 0%
4.2v = Full
I'm guessing the dock has a 3cell Li-po too ?

Battery drains while Note is charging from outlet

I noticed that while I have my Note charging from the wall, the battery will drain if I have the screen on or browse the internet. LTE coverage stops about 5 miles from my house, so I was browsing the internet on HSPA during this time. I tried wifi for a bit and it still drained. It will only charge when the screen is off, when I turn it back on the battery starts draining. Does anyone else experience this?
EDIT: It also takes forever to charge. I'm not as concerned with that as much right now though.
captivated said:
I noticed that while I have my Note charging from the wall, the battery will drain if I have the screen on or browse the internet. LTE coverage stops about 5 miles from my house, so I was browsing the internet on HSPA during this time. I tried wifi for a bit and it still drained. It will only charge when the screen is off, when I turn it back on the battery starts draining. Does anyone else experience this?
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Click to collapse
Yes mine does this too, i dont really care since my phone lasts 16+ hours i usually just start charging it when i go to sleep.
but yes i have this problem.
I just got my phone yesterday so I don't know how long the battery will last for me, but having it drain while plugged in is really annoying. I plug in my phone overnight and will read news and browse the internet until I fall asleep, so I don't want it to discharge while I'm doing that.
I'm testing the ipad charger we have, as it offers 2.1A instead of 1. If the phone can make use of the extra current it may help. Otherwise the charging circuitry is just what it is.
Sent from my Samsung Galaxy Note
Same here. Which sucks for me since im a heavy web browser during the day and can only get 6 hours of battery.
hausman said:
I'm testing the ipad charger we have, as it offers 2.1A instead of 1. If the phone can make use of the extra current it may help. Otherwise the charging circuitry is just what it is.
Sent from my Samsung Galaxy Note
Click to expand...
Click to collapse
Please let me know your results. I will buy a new charger if it prevents this.
This does not happen with mine. I just ran a test - started at 82% on the wall charger. Currently tethering via wifi, doing heavy surfing. Also opened Opera and kept refreshing a page every 20-30 seconds to keep the screen on and to simulate surfing via the device itself. So doing double surfing. After about 10 minutes I was up to 84%.
techntrek said:
This does not happen with mine. I just ran a test - started at 82% on the wall charger. Currently tethering via wifi, doing heavy surfing. Also opened Opera and kept refreshing a page every 20-30 seconds to keep the screen on and to simulate surfing via the device itself. So doing double surfing. After about 10 minutes I was up to 84%.
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Click to collapse
That's good to know that at least one person doesn't have this issue. Hopefully more people reply so we can see how many people are or are not having this problem.
For some reason after my first charge my streak never chargers to completely 100 percent. Only 98 percent no matter how long I charge it for. Anyone know why?
Sent from the Almighty Note!
This doesn't happen to me. I just use the same charger with a different cable. Can watch netflix, browse web etc
Sent from the best phone in the world Galaxy Note!!!
borijess said:
For some reason after my first charge my streak never chargers to completely 100 percent. Only 98 percent no matter how long I charge it for. Anyone know why?
Sent from the Almighty Note!
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Click to collapse
My note charges while using it as well. The ipad charger likely won't make a difference unless the circuitry in the Note is different than the Galaxy Nexus as I tried an ipad charger with that and the current was so high it shut off from overheating..
Also your phone has software in it to prevent overcharging. What it does is it will charge to 100%, then even if plugged in run off battery power down to say, 95% and when it hits that lower threshold it will charge back up to 100% and so on. This is probably what you are seeing.
Sent from my GT-N7000 using xda premium
captivated said:
I noticed that while I have my Note charging from the wall, the battery will drain if I have the screen on or browse the internet. LTE coverage stops about 5 miles from my house, so I was browsing the internet on HSPA during this time. I tried wifi for a bit and it still drained. It will only charge when the screen is off, when I turn it back on the battery starts draining. Does anyone else experience this?
EDIT: It also takes forever to charge. I'm not as concerned with that as much right now though.
Click to expand...
Click to collapse
I've noticed something similar to this and attribute it to the dual core processor and movie-theatre-sized screen.
Actually, my Note takes longer to charge on any charger other than the one that came with the phone, unless I have it charging off a usb plug directly into my computer (for some reason). However, I will say that unless I'm doing something super data/GPS intensive like Google Nav, the battery will not continue to discharge while plugged in, so it's possible you might have a crap battery.
I would power cycle the thing a few more times and then if no different, try and swap out the battery.
-Ryan
Chalk me up on the list for those that have draining batteries while being charged. I don't even have to be doing anything on the phone except making a phone call... and it will drain.
I have a little update to my problem. Instead of using the cable that came with the phone, I tried a 15ft cable from monoprice that I had laying around. Now the phone charges when in use, and chargers much quicker than it did with the Samsung cable. So I am happy now.
I am having the same issue. It takes more than 15 hours to fully charge, then only get about 6 hours of usage. It will also drain if plugged in and I am using it with the screen on. This should not be happening. I believe that the battery is defective. If there is no fix for this, I am going to exchange mine. I read about the outstanding battery life on this thing and I want it! I was tired of getting only 6 hours on my Dell Streak and paid full price for the Note hoping to get at least 10-12hrs. I can't even get the thing to fully charge.
freakyfranks said:
I am having the same issue. It takes more than 15 hours to fully charge, then only get about 6 hours of usage. It will also drain if plugged in and I am using it with the screen on. This should not be happening. I believe that the battery is defective. If there is no fix for this, I am going to exchange mine. I read about the outstanding battery life on this thing and I want it! I was tired of getting only 6 hours on my Dell Streak and paid full price for the Note hoping to get at least 10-12hrs. I can't even get the thing to fully charge.
Click to expand...
Click to collapse
If you're using the stock charger and cable, something is wrong. Period. It takes maybe 5-6 hours to charge from nearly flat, probably less.
freakyfranks said:
I am having the same issue. It takes more than 15 hours to fully charge, then only get about 6 hours of usage. It will also drain if plugged in and I am using it with the screen on. This should not be happening. I believe that the battery is defective. If there is no fix for this, I am going to exchange mine. I read about the outstanding battery life on this thing and I want it! I was tired of getting only 6 hours on my Dell Streak and paid full price for the Note hoping to get at least 10-12hrs. I can't even get the thing to fully charge.
Click to expand...
Click to collapse
Exchange! This is not normal!
I just charged it for 6 hours and got it to 44 pct. Something is effed up!
Sent from my SAMSUNG-SGH-I717 using xda premium
freakyfranks said:
I just charged it for 6 hours and got it to 44 pct. Something is effed up!
Sent from my SAMSUNG-SGH-I717 using xda premium
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Click to collapse
Using the stock charger plugged into a wall outlet? Or charging from a USB cable plugged into a computer?
in my experience since I got my note a month ago, different usb cables seem to vary in charging speed, even using the same usb port on my computer or the wallwart. I know that prob makes no sense and i can't explain it, but I have a cable that has those rf chokes on each end, and it is thicker than most cables, seems to carry current better or something. I am charging from a usb3 port on my desktop, and have fast charge turned on so that may be affecting it.
I can use my phone, while charging and I gain 1% about every 5 minuets.
bdeitemeyer said:
Using the stock charger plugged into a wall outlet? Or charging from a USB cable plugged into a computer?
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Click to collapse

Transformer Prime keyboard dock charging question

From what I remembered, if you dock the TP into the keyboard dock, the dock will start to charge the TP tablet? What I notice is, if the TP is at say 85% and I dock it, it will not charge the TP. If I turn off the TP and turn back on it will start to charge the TP.
Also noticed last night that once the TP battery went down to 70% it started charging, but this not good as I would be better to always have the TP fully charge.
For those that have the keyboard dock, does your start to charge the TP as soon as you dock it? If so, I will exchange the dock, have 1 week left.
Sent from my Transformer Prime TF201 using xda premium
Charge starts at 70% then it loads the tablet to 100% and then starts charging again when its down to 70%.
Thats actually good like this and more healthy for the battery instead of being at 100% all the time.
Imho they should even have implemented something like this on the low end, like the dock would stop loading the tablet at 15% and only give the rest of the charge to the Tablet if the tablet drops under 15%.
clouds5 said:
Charge starts at 70% then it loads the tablet to 100% and then starts charging again when its down to 70%.
Thats actually good like this and more healthy for the battery instead of being at 100% all the time.
Imho they should even have implemented something like this on the low end, like the dock would stop loading the tablet at 15% and only give the rest of the charge to the Tablet if the tablet drops under 15%.
Click to expand...
Click to collapse
Thanks Clouds5, now I know I don't have a defective dock. I think I would prefer it would start to charge a 80%, but that's just me. Thanks again for the info.
Sent from my Transformer Prime TF201 using xda premium
Can the dock be charged by itself,by hooking charger cable up to it? or does the prime have to be attached in order to charge keyboard?
I should have me a dock on the way. Very excited to see & experience all these great things I've been hearing about the dock. I know the extra battery life added will be great along with USB host capabilities. plus full size SD card slot.
demandarin said:
Can the dock be charged by itself,by hooking charger cable up to it? or does the prime have to be attached in order to charge keyboard?
I should have me a dock on the way. Very excited to see & experience all these great things I've been hearing about the dock. I know the extra battery life added will be great along with USB host capabilities. plus full size SD card slot.
Click to expand...
Click to collapse
Dock can be charged without TP on it. The dock has a connection just like the TP on the side to charge it.
I still don't see why, when I shut down TP with 85% battery and I turn it on, it will charge the TP.
Sent from my SAMSUNG-SGH-I717 using xda premium
ElCamino said:
I still don't see why, when I shut down TP with 85% battery and I turn it on, it will charge the TP.
Click to expand...
Click to collapse
I'd say its probably a bug , maybe a file gets reseted that sends info to the dock or something.
jep the dock is great indeed Gives you a whole new experience.
ElCamino said:
Dock can be charged without TP on it. The dock has a connection just like the TP on the side to charge it.
I still don't see why, when I shut down TP with 85% battery and I turn it on, it will charge the TP.
Sent from my SAMSUNG-SGH-I717 using xda premium
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Click to collapse
is there a little LED to let you know its charging and when it's full? like on prime power button
demandarin said:
is there a little LED to let you know its charging and when it's full? like on prime power button
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Click to collapse
Yes I believe there is on the side of the dock.
demandarin said:
is there a little LED to let you know its charging and when it's full? like on prime power button
Click to expand...
Click to collapse
Yep
JoeyLe said:
Yes I believe there is on the side of the dock.
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Click to collapse
pbelcomp said:
Yep
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Click to collapse
thanks!
not to mention if they are attached, when you charge both the tfp and dock led light up as charging/charged
Does everyone's dock charge the TP only to 90%? My keyboard dock stops charging my TP at 90%.
Sent from my Transformer Prime TF201 using xda premium
Yeah, it should only charge between 70-90%.
sorry for digging out this one, but I thought i'd better add my question to this thread because the topic is mentioned before.
Is there any possibility to change the behavior of the dock charging the prime?
I mean like the dock starts charging at 50% and charges till 70% but stops when it reaches a certain percentage.
I thought I read about it before but I couldn't find it yet.
Let me know if you can help me, and if it's possible to do with my locked but rooted Prime.
Thanks in advance.

Time the Note II takes to recharge

How long should our Note II take to recharge from 0% to 100%? Problem with practically all Android phones is that it just takes way too long to recharge. Last night I plugged my Note at about 1AM, depleted all the way down. When I woke up at 7AM, it was still at 70%. Does that sound about right for everyone? I understand that we have a huge battery capacity but the limitation with the microUSB port is definitely there.
no something is not right...my device recharges in 2.5hrs from below 10% to 100%
You using an outlet or CPU?
if CPU, are you directly connecting to a USB port or a hub?
My cpu charges so slowly compared to an outlet.
I'm plugged into the wall using the provided OEM charger.
pcpark87 said:
I'm plugged into the wall using the provided OEM charger.
Click to expand...
Click to collapse
You tried different outlets?
I would turn the phone off, try dif outlet, try charging it, see if it is any better.
If no, probably something hardware related.
if yes, probably something you have installed then i would just restart from stock.
It takes me about 2-3 hours with the oem charger.
Sent from my SCH-I605 using Tapatalk HD
I've been having this problem too, and I can't really pin it down. I'm using the charger that comes with the S3,which is only rated at 1amp so I know that's the biggest factor. However, sometimes it charges to full in a few hours, other times after a night on the charger it will have only made it to 60% or so. The real stumper is that it only tends to drain about 1-2% an hour in deep sleep, so it's not like it's draining faster than the charger can keep up. It seems completely random. I'm ordering a 2amp charger to see if it helps, im sure it will, but I'm just confused by the random nature of this.
Yea something is definitely wrong. Mine charges in about 2.5 hours from near 0%. Try a different outlet
Sent from my SGH-T889 using Tapatalk 2
I use the cable the phone came with and I can go from 2% battery life to 100% in about 3 hours. Hella fast, luv it.
Sent from my SCH-I605 using xda app-developers app
Yeah about 2-3 hours is my usual charge time from 20% to 0% range respectively.
I still can't help but feel that that is somehow slow though. Can't tell, it's been so long since I had a small battery I don't know what a fast charge is nowadays.
Going from zero is way different than going from 1% the battery tries to protect itself so it trickle charges for a while. Honestly going from 10-100 should not take more than three hours probably closer to two
Sent from my SCH-I605 using xda premium
Mine seems like it takes about 2 hours maybe even less from 15%
Sent from my SCH-I605 using Tapatalk 2
DJ1994 said:
Going from zero is way different than going from 1% the battery tries to protect itself so it trickle charges for a while. Honestly going from 10-100 should not take more than three hours probably closer to two
Sent from my SCH-I605 using xda premium
Click to expand...
Click to collapse
True that, the that.
Sent from my SCH-I605 using Tapatalk 2
not sure if this helps, but do you have light manager installed? I had an issue when I first downloaded it and set it up, that night when I went to charge it it would charge VERY SLOW...I finally isolated the issue to light manager....I uninstalled it and reinstalled and it has been fine ever since. The Note 2 for me now charges faster than any device I have ever had.
pcpark87 said:
How long should our Note II take to recharge from 0% to 100%? Problem with practically all Android phones is that it just takes way too long to recharge. Last night I plugged my Note at about 1AM, depleted all the way down. When I woke up at 7AM, it was still at 70%. Does that sound about right for everyone? I understand that we have a huge battery capacity but the limitation with the microUSB port is definitely there.
Click to expand...
Click to collapse
Hi,
This is what I have found. Sometimes when the microusb end is plugged into the phone that the phone charges at usb rate instead of ac which is wall outlet. I only have this problem with a standard usb cable in the car. Will change it soon but. What you can do after you plug in the microusb into the phone goto settings then battery and see how the phone sees the charging its getting. It will say either usb or ac. Ac is full charge rate usb is much slower since usb like off a pc or laptop has a lower output to your phone.
If you see it takes more than 3 hours to charge your phone and it says ac in settings then you definitely have a problem with either the charger, usb cable or phone.
Thanks,
Bryan
If you're using the cable and charger that came with the phone, you have a problem. Based on what you reported, I'd say you're using a 1A or less charger.

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