usb be plughin?
yes, in case prime is turned off...I'm in this mode as my charger is broken.
So how long does it take to charge through USB. Same amount, twice as long, or more?
What does 'usb be plughin?' mean?
It doesn't charge if the Prime is turned on, but I think it does it it's off.
drvsbsm said:
So how long does it take to charge through USB. Same amount, twice as long, or more?
Click to expand...
Click to collapse
A considerable ammount more, look more towards it being a full day charging and it wont charge while the screen is on.
USB sockets dont have the power needed really so its more of a trickle charge.
5v - USB Vs 15v Power.
100Ma(0.1a) Vs 1200Ma (1.2a)
My prime can be charged through usb,but much slower than AC charger
I doubt it. You need to supply current at a voltage higher than the battery's voltage. Prime's battery = 7.4V, USB = 5V.
Edit: According to this post, the OG TF can use [email protected] or [email protected] (or conceivably [email protected]). Presumably Prime charging is same as OG TF. Suggest doing as SlimDan22 said and try an aftermarket iPad charger.
How do you know if it's charging? I don't see a red light or anything
noob_2010 said:
How do you know if it's charging? I don't see a red light or anything
Click to expand...
Click to collapse
On the power button of the Prime when using the wall charger there is a tiny pinhole which lights up orange/red when charging, green when done. I don't know if using the USB charging method if it comes on.
donxuan1983 said:
yes, in case prime is turned off...I'm in this mode as my charger is broken.
Click to expand...
Click to collapse
Actually, if you use a USB 3.0 port, the Prime will very slowly charge even while awake; it does not show the charging icon or the lights however.
It may also require the tablet to at least be in Deep Sleep to do so, but I left my Prime plugged into my desktop's 3.0 port overnight at one point and awoke to a fully-charged tablet.
Ready2Mosh said:
On the power button of the Prime when using the wall charger there is a tiny pinhole which lights up orange/red when charging, green when done. I don't know if using the USB charging method if it comes on.
Click to expand...
Click to collapse
By the power button,?? No lights are on.
noob_2010 said:
By the power button,?? No lights are on.
Click to expand...
Click to collapse
On the power button..... it will light up orange when chargin (ac) and green when charged.
Plugged in usb, it wont light up at all.
e.mote said:
I doubt it. You need to supply current at a voltage higher than the battery's voltage. Prime's battery = 7.4V, USB = 5V.
Edit: According to this post, the OG TF can use [email protected] or [email protected] (or conceivably [email protected]). Presumably Prime charging is same as OG TF. Suggest doing as SlimDan22 said and try an aftermarket iPad charger.
Click to expand...
Click to collapse
Would [email protected] damage the Prime? How about [email protected]?
Related
http://androidforums.com/asus-eee-pad-transformer/382444-bargain-car-charger-inverter-uk-5-a.html
Jason71 on AndroidForums.com said:
Hi all
Long time Android addict and just got myself a transformer at the weekend. I have been puzzling the best way to charge it in car (read the threads on the subject) when I happened to wander in to Asda and spotted a mini 75W 12-230v power inverter on sale reduced from £20 to £5!. They are exactly the same as ones that sell on Ebay for 2-4 times that price out of Hongkong e.g.
12V to Mains 75w Car Van Mini Power Inverter Adaptor | eBay
I bought one and tried it on the way home from the store with the Asus AC charger and the transformer and it worked perfectly.
As a bonus it has a usb port built in not only rated at 1000ma but wired to be recognised as an AC charger (many arn't) which means it will do full speed charging on an android phone. So it should supply enough current to charge my HTC Desire even when using it as a satnav (many don’t). The only downside is that the flange on the Asus mains charger covers the edge of the USB port on the inverter so you cannot use both the AC and the USB at the same time without trimming the flange on the Asus a little.
Anyway I thought this was too good a deal not to share it with you guys.
Click to expand...
Click to collapse
So this is what we need! It looks huge though!!
http://www.nextag.com/12v-to-110v-car-adapter/compare-html have fun, go mad?
krugm0f0 said:
http://androidforums.com/asus-eee-pad-transformer/382444-bargain-car-charger-inverter-uk-5-a.html
So this is what we need! It looks huge though!!
http://www.nextag.com/12v-to-110v-car-adapter/compare-html have fun, go mad?
Click to expand...
Click to collapse
The ASUS AC charger is normally working very close to it's limits when running off fairly stable AC mains. Running off this modified sine wave poorly regulated device may be enough to push it past its limits. If you want a good mobile solution that you can use for the TF and other small DC devices, search for the thread by Devcake where he lists options and actual reviews.
I went with this:
http://www.ebay.com/itm/250899196416?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
And this:
http://www.ebay.com/itm/300547025189?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
DAFTEK said:
I went with this:
http://www.ebay.com/itm/250899196416?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
And this:
http://www.ebay.com/itm/300547025189?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Click to expand...
Click to collapse
Does your TF indicate charging, e.g. with Dual Battery Widget, using this bullet charger?
E.g. If it outputs 11V-12V it should indicate charging on the TF, but if less than 11V, say 5V-10V, it would trickle charge only (no indicator).
I got one from same guy, and it does not work. I measured 2.8V output.
Bob Smith42 said:
Does your TF indicate charging, e.g. with Dual Battery Widget, using this bullet charger?
E.g. If it outputs 11V-12V it should indicate charging on the TF, but if less than 11V, say 5V-10V, it would trickle charge only (no indicator).
I got one from same guy, and it does not work. I measured 2.8V output.
Click to expand...
Click to collapse
Mine arrived today. I hooked it up to 12v and tested the pins, got 2.8v. Then plugged i transformer and waited about 20 seconds. The transformer said it was charging on AC. I havent checked to see how quickly it was charging, but it gave the charging indication with the screen on.
EDIT: Tried it on another vehicle and now won't charge. Weird!
Any update to this working?
$1.99
I use this one for my phone (HTC Desire HD). It should also be okay for the Transformer, right?
http://www.dealextreme.com/p/car-cigarette-powered-1000ma-usb-adapter-charger-black-dc-12v-40470
/edit 1A limit could lead to slower charging, worst case (?).. by the way, there also is a 2 ampere model : http://www.dealextreme.com/p/universal-2000ma-usb-car-charger-adapter-for-digital-devices-black-12-24v-72961.. at $4 something, twice as expensive
kkoenen said:
I use this one for my phone (HTC Desire HD). It should also be okay for the Transformer, right?
http://www.dealextreme.com/p/car-cigarette-powered-1000ma-usb-adapter-charger-black-dc-12v-40470
/edit 1A limit could lead to slower charging, worst case (?)
Click to expand...
Click to collapse
Nope, won't charge.
Output:5V 1A
DAFTEK said:
I went with this:
http://www.ebay.com/itm/250899196416?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
And this:
http://www.ebay.com/itm/300547025189?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Click to expand...
Click to collapse
This one arrived today, there is one small issue with it, when you first plug it in the lighter the blue light gets bright and the asus orange light goes on and eventually green showing also the charging symbol, but if you unplug the cable from the charger and plug back in, it wont work, you have to unplug the charger from the lighter and plug back in. weird... But it works
This claims to be even more powerful. Just ordered but it will takes ages to get to me.
amm009uk said:
This claims to be even more powerful. Just ordered but it will takes ages to get to me.
Click to expand...
Click to collapse
sorry, I don't think it will work.. the transformer needs 15V to charge, that one only is a 5V charger. i'd cancel my order.
OK, let's go over this again. The TF will charge with 5V at 1.5 amp but take forever to do so. The amps has nothing to do with it. It is the volts. If you feed the TF with 11V to 15V at 1.5 amp's or more it goes into the fast charge mode and charges in about 2 hrs. Anything that says 5V will charge the TF if you have several days to wait. If you have just hours you must charge using 11 to 15 volts at 1.5 amp or more to charge with. This is what the original power supply is doing. Please look at the specifications printed on the original charging brick. Note that it has dual outputs 5V and 15V if you plug your phone into the ASUS charger the charger is smart enough to know not to output 15V however when you plug in the TF the charger outputs 15V to charge the TF in the speedy mode.
Please read over "Dvecakes" thread for even more details and items you can use to charge the TF on the go and at home.
Hope this helps.
hshoem1
You guys need to read my DIY charger thread. For $12 you can make a car charger.
Check the thread links in my signature.
PatrickVogeli said:
sorry, I don't think it will work.. the transformer needs 15V to charge, that one only is a 5V charger. i'd cancel my order.
Click to expand...
Click to collapse
hshoem1 said:
OK, let's go over this again. The TF will charge with 5V at 1.5 amp but take forever to do so. The amps has nothing to do with it. It is the volts. If you feed the TF with 11V to 15V at 1.5 amp's or more it goes into the fast charge mode and charges in about 2 hrs. Anything that says 5V will charge the TF if you have several days to wait. If you have just hours you must charge using 11 to 15 volts at 1.5 amp or more to charge with. This is what the original power supply is doing. Please look at the specifications printed on the original charging brick. Note that it has dual outputs 5V and 15V if you plug your phone into the ASUS charger the charger is smart enough to know not to output 15V however when you plug in the TF the charger outputs 15V to charge the TF in the speedy mode.
Please read over "Dvecakes" thread for even more details and items you can use to charge the TF on the go and at home.
Hope this helps.
hshoem1
Click to expand...
Click to collapse
DevCake said:
You guys need to read my DIY charger thread. For $12 you can make a car charger.
Check the thread links in my signature.
Click to expand...
Click to collapse
Ok that was me being lazy and not reading! Thanks for straightening me out guys. DevCakes's thread is the place for all answers what more can you ask even the links are there
Has anyone by chance tried this car charger?
www.amazon.com/NTK-BULLET-CHARGER-T...Q4VU/ref=sr_1_1?ie=UTF8&qid=1324413368&sr=8-1
Also Does anyone have one of these replacement cables? I think I would probably order one directly from Asus though instead of trying to save a couple of bucks.
www.amazon.com/Aftermarket-Charging...?s=electronics&ie=UTF8&qid=1324413882&sr=1-13
I want to put together a car charger to just leave in the car.
So, i put my TFP on the charger last night.. it was around 5% battery. I check on it now, and its completely off, the charger is hot and smells like burning plastic and my TFP is dead.
I'm not getting any response when i try plugging in the USB to any USB to 110V charger..
Anyone else experience something like this? I've had no problems with the device so far
-edit
anyone have a support number i can call as well? ughhh
biggem001 said:
So, i put my TFP on the charger last night.. it was around 5% battery. I check on it now, and its completely off, the charger is hot and smells like burning plastic and my TFP is dead.
I'm not getting any response when i try plugging in the USB to any USB to 110V charger..
Anyone else experience something like this? I've had no problems with the device so far
-edit
anyone have a support number i can call as well? ughhh
Click to expand...
Click to collapse
Well known problem with the Transformer and Transformer Prime chargers. Has happened for years.
chamberc said:
Well known problem with the Transformer and Transformer Prime chargers. Has happened for years.
Click to expand...
Click to collapse
do you happen to know if its the same charger for the tf101 and tf201?
From what I've read it's the same charger.
tigertechmi said:
From what I've read it's the same charger.
Click to expand...
Click to collapse
just went to office depot, got a new charger.. and the tfp is on! calling asus now to complain
biggem001 said:
just went to office depot, got a new charger.. and the tfp is on! calling asus now to complain
Click to expand...
Click to collapse
RMA it right away or return it to the retailer you bought it at it will be faster than Asus
Sent from my Transformer Prime TF201 using Tapatalk
biggem001 said:
do you happen to know if its the same charger for the tf101 and tf201?
Click to expand...
Click to collapse
They are identical.
Also: Besides it being USB 3.0 (Requiring a special charger), the Asus chargers are chipped to recognise Asus devices and deliver 15v verses the standard USB 5v so that they charge faster. The TFP wont charge at all on only 5v. It's the same reason it wont charge from your computer.
taylorgrandorf said:
Also: Besides it being USB 3.0 (Requiring a special charger), the Asus chargers are chipped to recognise Asus devices and deliver 15v verses the standard USB 5v so that they charge faster. The TFP wont charge at all on only 5v. It's the same reason it wont charge from your computer.
Click to expand...
Click to collapse
wrong again the dock pulls the 15v at 1.2A the reason it will not charge or chages very slow is your usb is outputting like 500 mAor less without the flow of electrons which current is it will not charge very fast at all! 5v is fine for it! but the charger charging at 5v pulls 2.1A
the tablet also trys to pull more current when it is almost dead! so try to keep it above 20% to avoid this
Sent from my Transformer Prime TF201 using Tapatalk
Wordlywisewiz said:
wrong again the dock pulls the 15v at 1.2A the reason it will not charge or chages very slow is your usb is outputting like 500 mAor less without the flow of electrons which current is it will not charge very fast at all! 5v is fine for it! but the charger charging at 5v pulls 2.1A
the tablet also trys to pull more current when it is almost dead! so try to keep it above 20% to avoid this
Sent from my Transformer Prime TF201 using Tapatalk
Click to expand...
Click to collapse
Ok, my Gigabyte motherboard puts out 2.5A specifically with tablets in mind. If it was charging, my lockscreen would say "Charging..." on it, which it does not. No need to be a rude know-it-all with your "Wrong again..." attitude. Just trying to help out here.
The Prime will charge on a USB but it has to be turned off. I've confirmed this and the manual says this as well. As far as my charger goes it gets warm but not hot or smells. One thing I do when charging is turn off the tablet.
theandies said:
The Prime will charge on a USB but it has to be turned off. I've confirmed this and the manual says this as well. As far as my charger goes it gets warm but not hot or smells. One thing I do when charging is turn off the tablet.
Click to expand...
Click to collapse
Ok. That seems correct. Thanks for verifying.
It does take a lot longer to charge on the USB though. I can go from 20% to 100% in a couple of hours on the wall charger with the Prime turned off. On USB and the Prime turned off I was at approximately 15%, went to lunch and did some other things, came back about 1.5 hours and when I turned the Prime back on it was a little over 50%.
Might be faster on my Desktop since I have the high power USB ports. I will try it and post results eventually.
My Prime ac adapter stopped working (the cable works fine) and was wondering while i wait for a new charger if the dock can charge through the pc. Any help or suggestions are appreciated
Sent from my Transformer Prime TF201 using xda premium
I know that the prime can be charged by a computer,but I never tried with the dock,to charge your tablet you must turn off it or put it in to sleep...
rogeriok said:
I know that the prime can be charged by a computer,but I never tried with the dock,to charge your tablet you must turn off it or put it in to sleep...
Click to expand...
Click to collapse
May I ask how? Everything Ive seen and read says that the usb doesnt put out anywhere near the power needed.
The tablet can charge on the lower 5v, but its a trickle charge and it doesnt show the charging icon. Anyone try this with the dock? Mine doesnt work but mabe theres a way...
Sent from my Transformer Prime TF201 using xda premium
The dock does not charge from USB.
As far as I know the Prime can indeed be charged by USB only when it is off, since when it is on it will probably consume more power than the one received from USB
For the Dock, I really dont know if it may actually charge, Id say just leave it connected and check it out a few hours later The worst that can happen is that is does not charge at all.
Nope, does not charge while docked. Actually, if I forget to plug it back into the AC adapter, it will lose battery life over an extended amount of time...
Now it does charge through the PC usb with only the tablet, but as previously stated, it is a trickle charge.
cragains said:
Nope, does not charge while docked. Actually, if I forget to plug it back into the AC adapter, it will lose battery life over an extended amount of time...
Now it does charge through the PC usb with only the tablet, but as previously stated, it is a trickle charge.
Click to expand...
Click to collapse
The TFP must be completely off to charge from a USB port, and then it will take a long time.
The TFP requires 15v to charge at the normal rate. A USB port puts out maximum of 5v.
i have this tablet for a couple days now, when i plug the power adapter to the mains the power adapter gets really hot.
does anyone have the same result or is just normal? i know that the adapter obviously will get hot, but it seems a bit to hot, just the adapter the usb cable is fine and so is the tablet
Its normal. If it gets to hot it shuts off. I hear you have to put it in the freezer to attempt to bring it back.
Sent from my VS910 4G using xda premium
well, i just dont want to wake up one morning and find the all lot burned.
but it does get really hot
Noticed the same thing with mine. I'm actually on my second pad for other reasons, but I didn't notice the charger getting as hot with my first one. But it only seems to get hot when actively charging. I've checked it after letting it sit still plugged in, but after it finished charging and it was fine.
I just try not to leave it charging if I'm sleeping or going out. Although, I forgot to unplug it this time...
Sent from my DROID BIONIC using Tapatalk 2
can we charge the tablet via the pc usb port?
its hard not to leave the tablet charging over night when your using every day
LUCA LUCA said:
can we charge the tablet via the pc usb port?
its hard not to leave the tablet charging over night when your using every day
Click to expand...
Click to collapse
No. Other threads in this forum tell you why.
the reason the charger gets so hot is it's 15 volts
and it takes minimum 12 volts for the tablet to kick into charging mode
so to answer your question
a usb port does charge the tablet, but usb is only 5 volts
so it will not show charging
and it will probably take 24 hrs to fully charge
Mine gets hot while charging but once it hits 100% it cools back down. I don't charge it while sleeping for this reason. Also according to the manual the PC will charge it bult as previously mentioned it takes longer. The tablet must be powered off when charging this way or it won't charge.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
Same as other itt, it will heat up when charging, but if it's left in the wall unplugged from the tab/dock it cools back down.
Perhaps it needs 12v for full charge speed, but the 300 also trickle charges when plugged into a computer USB port.
i have notice that, when it finishes charging, that just cools down, i was just wondering did i get a faulty one, but as ye say its normal
thanks for all the replys
Luca
even there the charger gets very hot, so it is normal, also, we are going to have very hot temps these days, (40°C here)...
just be sure to not plug it near easy flammable things!
ciao
Yes we have noticed the charger gets very hot might have something to do with fast recharge time the device has
Sent from the network via FTL com buoy
Good evening,
On my charger i notice it is wrting : "output 5v--2A or 15v --1.2A"
This mind that i can use the charger for any phone that charge usualy wiht 5V ?? Do the charger "swap" the voltage by him self if it's not connect to the tablet ???
I don't want to burn my HTC, but to have one charger for the tablet and the phone will be good when travelling
Thanks
Yann
Sent from my ASUS Transformer Pad TF300TG using xda app-developers app
yannmrt said:
Good evening,
On my charger i notice it is wrting : "output 5v--2A or 15v --1.2A"
This mind that i can use the charger for any phone that charge usualy wiht 5V ?? Do the charger "swap" the voltage by him self if it's not connect to the tablet ???
I don't want to burn my HTC, but to have one charger for the tablet and the phone will be good when travelling
Thanks
Yann
Sent from my ASUS Transformer Pad TF300TG using xda app-developers app
Click to expand...
Click to collapse
The charger that comes with the Transformer is dual-purpose. If you plug in a Transformer tablet, it'll output the 15V to rapid-charge your Transformer. If you plug in a USB device, it'll output 5V at 2A to rapid-charge your USB device.
If you're wondering how it can tell the difference, Pin #7 on the USB3 Transformer cable is grounded -- this is how the charger can tell the difference between a Transormer and an ordinary USB device.
yannmrt said:
Good evening,
On my charger i notice it is wrting : "output 5v--2A or 15v --1.2A"
This mind that i can use the charger for any phone that charge usualy wiht 5V ?? Do the charger "swap" the voltage by him self if it's not connect to the tablet ???
I don't want to burn my HTC, but to have one charger for the tablet and the phone will be good when travelling
Thanks
Yann
Sent from my ASUS Transformer Pad TF300TG using xda app-developers app
Click to expand...
Click to collapse
In fact the charger of Asus is quite tricky. I haven't found any substitution, only stock charger can be used.
hung2900 said:
In fact the charger of Asus is quite tricky. I haven't found any substitution, only stock charger can be used.
Click to expand...
Click to collapse
the connector look to be non standard as if you put an usb extension cable it wont charge.
NixZero said:
the connector look to be non standard as if you put an usb extension cable it wont charge.
Click to expand...
Click to collapse
It's not a non-standard connector -- it's a USB 3.0 connector.
If you use a USB 3.0 extension cable, it will work. If you use a non-USB 3.0 extension cable, the charger won't see that pin 7 is grounded, so you'll just get 5V instead of 15V. There's no bi-directional communication between the two.
The Transformer will charge when it sees 12V to 15V on what's typically the 5V pin.
The Asus charger will output 15V (earlier units were 12V) when it senses pin 7 is grounded.
Also, if you'd like to build your own power supply -- get any old female USB connector, and send 12V to 15V on pin 1 instead of 5V, and you've got yourself an Asus Transformer charger. Just don't plug anything else into it, since there's no safeguard to prevent 12-15V going into a 5V device. I've painted mine orange so I don't mistake it.
Hi, my Transformer pad won't charge normally when I connect it to the power adapter direclty - it doesn't show it's charging (though I can tell it is, because after some half an hour it had 2 % more of battery)... can it be that the charger doesn't recognize the tab and gives only 5V? Why? It works normally when I charge it on the docking station (through the power adapter), and the same cable works normally when I use it to transfer media to the pad from the PC...
P.S. When conneted to the power adapter directly, the orange light on the power button of the pad doesn't go on... it only goes on when the pad is on the dock and the power adapter is plugged into it.
Any ideas?
krhainos said:
The charger that comes with the Transformer is dual-purpose. If you plug in a Transformer tablet, it'll output the 15V to rapid-charge your Transformer. If you plug in a USB device, it'll output 5V at 2A to rapid-charge your USB device.
If you're wondering how it can tell the difference, Pin #7 on the USB3 Transformer cable is grounded -- this is how the charger can tell the difference between a Transormer and an ordinary USB device.
Click to expand...
Click to collapse
krhainos said:
It's not a non-standard connector -- it's a USB 3.0 connector.
If you use a USB 3.0 extension cable, it will work. If you use a non-USB 3.0 extension cable, the charger won't see that pin 7 is grounded, so you'll just get 5V instead of 15V. There's no bi-directional communication between the two.
The Transformer will charge when it sees 12V to 15V on what's typically the 5V pin.
The Asus charger will output 15V (earlier units were 12V) when it senses pin 7 is grounded.
Also, if you'd like to build your own power supply -- get any old female USB connector, and send 12V to 15V on pin 1 instead of 5V, and you've got yourself an Asus Transformer charger. Just don't plug anything else into it, since there's no safeguard to prevent 12-15V going into a 5V device. I've painted mine orange so I don't mistake it.
Click to expand...
Click to collapse
Good info to know, Krhainos. Thanks for sharing that with us. I've been wondering about using the Asus plug for other USB devices I have and the information you supplied answered those questions. :good:
Hello. I want to be able to charge my Transformer Prime in my car. It didn't work with my 500mA GSM charger (which is normal, I guess), so I bought Tom-Tom "High Speed Multi Charger" (i can't post links), which is advertised as tablet (namely iPad of course) charger with 2A USB output port. Strangely it does not charge Prime too ! So my question is what voltage and current is needed to charge Prime ? Do I need a special cable ? Charger, that comes with Prime, says "OUTPUT: 15V/1.2A OR 5V/2A", which is strange for me also ?!?
15V if device is on, 5V if it is off.
Striatum_bdr said:
15V if device is on, 5V if it is off.
Click to expand...
Click to collapse
Hmm, it doesn't charge. What do you mean "if it off" ? I tried to charge it when it is off, but it just turns on when I plug-in cable. If I turn off (long press button and select "shut down"), while it is still with plugged cable from charger I think it still does not charge - at least red LED does not light.