I have just bought up my transformer ( Love it ) but it's at about 10% battery right now... I take the cable that came with it (the usb one) and plugged it into my computer but it is not charging ? Any idea what's wrong with it ? when i plug it into the charging unit it works fine though
i've heard it has to be turned off for the USB charging to work....
Like off as in screen off or off as in complete off ?
It will not charge in your computer. You have to charge it in the wall.
Sent from my Desire HD using XDA Premium App
One of the pamphlets that came with it said the screen has to be off in order to charge it using a computer's USB port, cause the screen uses too much power and a USB port doesn't output as much, its best just to charge with the ac adapter. Nothing is wrong with your unit, thats just how it works.
Dark lord me said:
I have just bought up my transformer ( Love it ) but it's at about 10% battery right now... I take the cable that came with it (the usb one) and plugged it into my computer but it is not charging ? Any idea what's wrong with it ? when i plug it into the charging unit it works fine though
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Turn off the screen and it will charge. (you don't need to turn it off; you just need a black screen) It is very, very slow though.
My wall charger never charged my tablet so I am awaiting a replacement. The USB charge is MUCH slower than the wall charge. We are talking about maybe 4-5% an hour -- max with the USB cable alone.
Connecting this thing to a computer will NOT charge it. Even a normal 5V 1.2A-2A charger won't charge it fast enough. I used a 2A charger and it trickle-charged for over half a day and managed to clock in @ 50pc. I think the unit uses hardware info from the ASUS charger to detect the charger. Any other charger wont do.
Isn't the cable and charger USB 3 and charging is at non USB 2 values (voltage and current).
Good amount of mis-info in this thread...
The unit *will* charge from computer USB, assuming the USB port provides enough amperage (not voltage). I have not yet measured out the amps used, but it's on my list of things to do...
In order to charge from computer USB, the display on the Transformer needs to be off. The unit can be on, but it must be asleep.
The adapter that comes with the transformer provides 15VDC via extra pins which loosely resemble USB 3.0. These are *not* USB 3.0 data/power specs, however a USB 3.0 extension cord could be used to lengthen the existing adapter.
Any USB car adapter should work to charge this in sleep mode, similar to a computer USB port. In order to "fast charge" in a car, however, you'd basically need to use an AC inverter with an ASUS Transformer adapter.
ChristoA1 said:
Good amount of mis-info in this thread...
The unit *will* charge from computer USB, assuming the USB port provides enough amperage (not voltage). I have not yet measured out the amps used, but it's on my list of things to do...
In order to charge from computer USB, the display on the Transformer needs to be off. The unit can be on, but it must be asleep.
The adapter that comes with the transformer provides 15VDC via extra pins which loosely resemble USB 3.0. These are *not* USB 3.0 data/power specs, however a USB 3.0 extension cord could be used to lengthen the existing adapter.
Any USB car adapter should work to charge this in sleep mode, similar to a computer USB port. In order to "fast charge" in a car, however, you'd basically need to use an AC inverter with an ASUS Transformer adapter.
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Tried a 2.1A 5V charger. Took about 8 hours to charge @ 50pc. The ASUS charger is rated at 1.2A.
is the only way to plug the device into your PC or laptop via USB on the dock?
you cant use the proprietary charger cable to do USB data transfer with the charging cable USB component?
ie....to do data transfers via USB (not the memory card), the only way is via the dock?
makaveli25 said:
is the only way to plug the device into your PC or laptop via USB on the dock?
you cant use the proprietary charger cable to do USB data transfer with the charging cable USB component?
ie....to do data transfers via USB (not the memory card), the only way is via the dock?
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No, one end of the charging cable is regular USB and the other end (tablet-end) is proprietary. You can transfer files over by connecting to your computer's USB.
awesome, thanks.
do you think that if you get a male/female USB converter, you could plug in a USB memory stick device or a mini hard drive device and have it work fine in the charging cable just like you would if you were to plug in a mini hard drive into one of the usb ports on the dock?
So would this be ok or would it damage my phone? Basically I have a usb extension with is basically a usb plug on one side and a port on the other to plug in another usb cable. I'm plugging that into the charger and then plugging in the microusb wire into that to charge. It charges fine but I'm just wondering if it's not good for the phone.
Its just extantion code where you plug in your sammy charger rite? Than you are ok no problem at all. I use this setup everyday.
C2Q said:
So would this be ok or would it damage my phone? Basically I have a usb extension with is basically a usb plug on one side and a port on the other to plug in another usb cable. I'm plugging that into the charger and then plugging in the microusb wire into that to charge. It charges fine but I'm just wondering if it's not good for the phone.
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I mean something like this
http://i.imgur.com/VJbLI.jpg
Basically the bottom goes into the samsung charger and the actual microusb charger goes to the top. Its basically an extension cord for the microusb cable.
I have a 10ft USB cable plugged into my stock charger with no problem.
Not really answering my question lol. I wanna know if its safe for a usb cable to be plugged into another usb cable.
Yes it is!!!!!!
C2Q said:
Not really answering my question lol. I wanna know if its safe for a usb cable to be plugged into another usb cable.
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hi,
i have just bought the S4, the only problem is the white mains power charger cable is too short for me.
Can anyone recommend an extended mains power charger that is compatible with the S4 i9505?
Thanks
Any micro usb will be fine just keep in mind the longer the cable the slower it will charge the phone. I personally bought a power strip to add more distance ... but I also have a 10ft usb cable that charges my phone very slowly
Don't listen to anyone that says to get a usb extension cable.
to answer you'r question, you can't get a longer cable for the s4, at this time.
the usb cable and charger are "special" you have to use what came in the box to be charging the phone at ~1.5 amps, if you so much as just use a different microUSB cable, the current will go down to ~0.75 amps (effectively doubling the required charging time). same goes for the wall adapter.
When I got my Asus TF700T I got one power plug and 2 USB to tablet/dock plugs. The first thing I was VERY disappointed about is how short the USB cord was. When in my bed I could not plug it in I had to use it off battery only due to the shortness of the USB cable.
I went out and bought a USB male to USB female cord to use as an extension cord and low and behold it would not charge both the dock and the tablet when plugged into the Asus supplied AC adapter. I am assuming the extra length might have knocked down the power from the AC adapter just enough to not charge both devices.
What you need -
1) Original USB to Tablet Asus TF700T cord
2) Any length Male to female extension cable. I bought a 7 foot.
3) A 110-220 to 12 volt 2 amp power jack(car jack) converter. This is the one I bought any should work with the same specs. http://www.ebay.com/itm/130962356608?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
This is a very easy "hardware hack" to do.
1) Pull off the 12 volt car jack at the end of the converter it will leave you with a + and a - cable coming from the power brick.
2) Simply strip off the male side of the USB extension cable disregard the 2 data cables and just use the + and - power cables. Solder/clamp/or connect and cover each connection with electrical tape.
3) Plug the USB cable into the female end of the extension cable that is connected now to the converter.
3) Plug in your dock and tablet and watch both charge at a decent rate. This gave me enough cable length to plug it in behind my bed and be able to have it plugged in and on my lap.
Also doing it this way allows you to not have to hack up your devices USB cable and you can still take it out of the female end for any syncing or traveling purposes.
Hopefully this helps someone else who has issues with how short the charge cable is for this tablet.
A USB extension cable does work, but you specifically need a USB 3.0 cable. 2.0 doesn't allow enough voltage to travel through.
All I did was buy a lamp extension cord for .99, plug the wall wart into it and plug it in the wall. Now it's close enough to the bed or anywhere else I might be.
flhthemi said:
All I did was buy a lamp extension cord for .99, plug the wall wart into it and plug it in the wall. Now it's close enough to the bed or anywhere else I might be.
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Or you could do that. :laugh:
Still the best solution, I quite agree.
ShadowLea said:
A USB extension cable does work, but you specifically need a USB 3.0 cable. 2.0 doesn't allow enough voltage to travel through.
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...because the charger uses some of the USB 3 wires to detect the tablet and enable 15 V - with a USB 2 cable it detects only a generic USB device and charges it with the standard 5 V.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4
I've been looking for a couple wall outlets that have the standard two 110V plugs and 2 USB ports and there are quite a few out there. The problem is I haven't found any that can charge the way the default charger that comes with the tablet charges. 5V with a USB 2.0 cable and 12V with a USB 3.0cable. Are there any out there that can do this? This would save me alot of plug space in the bedroom if so, one plug for the tablet and one for my phone.
Thanks