I just tested the USB Charge Adapter we sell (mostly for iPads & Smartphones) with my HP Touchpad.
When you first plugin the usb cable, by itself, it says that "this connection is for transfering files" and will not charge the Touchpad this way.
When you use the USB Charge Adapter with your cable, it says "the Device May Not Charge" and suggests to charge it with the AC adapter. In 1.5 hours of charging with the Adapter, my Battery Charged % went up by 20%. From 22% to 42%. Not bad for a $ 5.00 part.
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Hi Here in Mexico dont have a UK plugs and of corse my phone charger dont fits o the outlet but i have a USB Charger I can plug the Data cable to carge but the only question i have is this specs
Samsung Original Travel Charger is output : 5V = 0.7a
My USB output : 5V = 0.5a
Please Help
I think the only diff is the charges Times is less amp takes more time to full the battery.
i use the uk charger here in the u.s. i believe they are set for multiple power inputs just get a cheap adapter to change the plug configuration. that is what i am using.
i posted the below in another charger thread but in case it serves here
not sure if a lot of folks are just unaware, but every phone i've had charged fine from a usb port off my computer
since i started tethering my phone to my laptop (browse the web from family couch) december 2009, i haven't used the wall charger
even if i'm not tethering, i've got a spare usb cable on the desktop, that when i sit down at the desk, the phone or whatever device, gets connected to - far more convenient and fewer items occupying space on the desk
plus, i've got that Tmo car charger that just has a usb port on it's end - so the same cable that i use to tether to the laptop (when in the car), if i'm using the phone in the dock for nav, runs down to the charger - the charger, with no cable hanging off it when not in use, let's me leave the charger in the socket 24/7 - no looking for it in the glove box and untangling it etc
that charger is simply converting the 14V car voltage to 5 V the USB port normally delivers
2 - 3.5 hours seems to take my 1150mah battery from low charge to full
for what it's worth
celtichazard said:
Hi Here in Mexico dont have a UK plugs and of corse my phone charger dont fits o the outlet but i have a USB Charger I can plug the Data cable to carge but the only question i have is this specs
Samsung Original Travel Charger is output : 5V = 0.7a
My USB output : 5V = 0.5a
Please Help
I think the only diff is the charges Times is less amp takes more time to full the battery.
Click to expand...
Click to collapse
There is nothing wrong with that. 5V is all you need. As long as you don't supply too high a voltage, your batteries should be safe. Don't worry about the amperage (current). Lower current (0.5a vs 0.7a) just means that it takes longer to charge the batteries.
And for those who really must have a wall charger that charges the batteries directly, you can buy a universal USB charger (http://www.dealextreme.com/details.dx/sku.15264). It works great. It plugs into any USB charger or laptop USB port, and charges any battery rated 3.7V. You can find them on eBay for just a couple of dollars.
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?
Hi all,
I have a couple of micro usb car chargers and when I was using a Navigator app whilst driving somewhere my battery just died despite the charger being plugged in and showing as charging?
I bought another charger off ebay which is a usb car socket with a genuine Samsung micro usb cable. It shows as 1A output and I plugged my phone in to charge at 1% with google maps running, half an hour later it had only gone up to 2%?
What I did previously was plug the 3 pin mains charger into a 240V inverter plugged into the cigaretter lighter socket and that actually charged the phone. Any ideas why the car chargers won't charge it, does anyone know of a car charger that actually will charge the S5?
martyp78 said:
Hi all,
I have a couple of micro usb car chargers and when I was using a Navigator app whilst driving somewhere my battery just died despite the charger being plugged in and showing as charging?
I bought another charger off ebay which is a usb car socket with a genuine Samsung micro usb cable. It shows as 1A output and I plugged my phone in to charge at 1% with google maps running, half an hour later it had only gone up to 2%?
What I did previously was plug the 3 pin mains charger into a 240V inverter plugged into the cigaretter lighter socket and that actually charged the phone. Any ideas why the car chargers won't charge it, does anyone know of a car charger that actually will charge the S5?
Click to expand...
Click to collapse
buy yourself 4.8A dual usb car charger (2.4A per port).
martyp78 said:
Hi all,
I have a couple of micro usb car chargers and when I was using a Navigator app whilst driving somewhere my battery just died despite the charger being plugged in and showing as charging?
I bought another charger off ebay which is a usb car socket with a genuine Samsung micro usb cable. It shows as 1A output and I plugged my phone in to charge at 1% with google maps running, half an hour later it had only gone up to 2%?
What I did previously was plug the 3 pin mains charger into a 240V inverter plugged into the cigaretter lighter socket and that actually charged the phone. Any ideas why the car chargers won't charge it, does anyone know of a car charger that actually will charge the S5?
Click to expand...
Click to collapse
If your battery goes above the 42°C the Kernell stops charging; the consumption of the phone can be up to 700mAh, so with 1A the charge must increase in about 5% in half an hour. with a 2A charger the kernell will accept another 800mAh as much, so you can fully charge your phone in more than three hours, (whe in a fully use) but always with abattery temperature lower than 42°C
I personally use the Anker Qualcomm 2.0 car charger, no problems, I like how fast it charges even if I am heavily using it (unlike other chargers I have owned)
Excellent,thanks both. I got hold of a 2.1a charger which seems to be doing the job well at the moment. Interesting thing about the battery as I have felt it get very warm at times, not always when charging though.
I bought this [Quick Charge 2.0 Car Charger]CHOE 30W (with Most Powerful QC 2.0 Port) Dual USB Car Charger with 22AWG 3.9FT Micro USB Cable(White)
Use coupon code 88PKZDLL on checkout to save $5.45 making it only $10
actually works
I can really recommend this one: Aukey® Kfz Ladegerät 4.8A Dual Port Autoladegerät mini Car Charger, 2.4A+2.4A（4.8A max）dual Ausgänge für iPhone, iPad, Tablets, Smartphone, Navi u.a. USB-Geräte (4.8A dual Port mini Schwarz)
(Can't post the URL because of anti-spam bull****. Just search for that strink on amazon.de)
It's powerfull enough to charge a S5 and a S5 mini for example.
I have a genuine at&t 2.1 AMP car charger for my SGS5 and I never had any problems with it. It also has an extra USB port so you can charge two devices at a time (the 2 amps split to 1 amp for each device).
The phone charges quick using wall plug, but the same cable in USB is dead slow. Even USB 3.0.
On plugs where I would charge my Nexus5, it doesn't charge, or something like 2% per hour...
Is this because of the cable? (I ordered some more, but I only have the original cable at the moment.)
Do you manage to charge using USB port from a computer?
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.