Hi guys,
I have an odd question, but I need an answer, specially from one who knows about electronics behaviour. Ok, here is my case:
I'm in a hurry, have to recharge my device fast. Charging using the charger are more faster than using USB-to-PC cable. But while I'm charging, I also need to access my files. Unfortunately, the device only have 1 USB port. What to do? I bought a HTC Y-Cable that provides me with 2 USB port. Now the question is, if I connect my charger to USB Port #1 and my USB-to-PC cable to USB Port #2, does that mean I'm double charging? And if I am double charging, does that mean the charging duration will be shortened (faster charging)?
i'd say yes
normal usb only provide 500mA where the normal ac chager give much more
and recharge faster
so a miniUSB to 2 normal usb connected to a pc would mean both usb connect and fast charge
unless the pc would get confused that it had 2 pda's connected or something
but i doubt it i have a external usb hd which only works with usb only as in without other ac input if it have 1 of those
2 to 1 usb cables and that works
even if i dont use it personly because firewire give me enough power for only 1 connection
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.
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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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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?
Is it possible to obtain a USB cable for fast charging, i.e. more than 500mAh without modding?
See for example:
S107 S105 USB Charger Charging Cable For Mini RC Helicopter Syma S105/S107 2A
I'm asking because a lot of USB chargers in the range of 1000-2000mAh come with either no USB cable or a standard USB data cable that limits charging to 500mAh.
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
i tried 3 different usb type-c cable including the one that came with the phone and it barely charges through pc or usb. i would plug it in at around 20% to my pc and 30-40mins later its at 20%.......... is this norm for everyone? its kind of frustrating when i do not have charger with me all the time
is it the cable problem? please help me out here
PC USB outlets do not give you enough current to charge today's smartphones. You need to use a wall charger with the right voltage and amp.
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Ur pc will never charge it as fast as the charger does. However, your motherboard may have a software which speeds up charging. I have a gigabyte mobo and its soft named "on/off charger".
Its pretty much as the others have said. If the phone charges fine from a wall socket, Its most likely a PC problem.
Smart phones need a lot of power to charge them, usually 1+ amp
But, most PC USB ports (USB 2.0) will only give out 0.5 amp, so 'if' they charge it, it will be very slowly.
A PC with a USB 3.0 port should charge it fine, but not as quick as a wall charger, especially if it has a 'Quick Charge' feature.