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I was planning on using my iPad charger to charge my phone, iPad, and TF700 while on the road. It puts out more than enough current at +5 volts but doesn't work with the TF700. The Asus charger outputs +15 and +5 and works with the Asus cable and an OEM cable, and also works charging my phone using a micro-B cable. Is the TF700 charged using +15 volts?
The TF700 booklet says it can be charged from a USB port, which is +5 volts. While that may be an impossible task on a PC, it still means that the TF700 can be charged using a USB cable and +5 volt charger. Why doesn't it work? Has anyone gotten a 2A +5V OEM charger to work with the TF700? Is there a pinout diagram for the Asus cable and charger anywhere? Thanks.
Not sure if this helps, but the keyboard dock (unlike the tablet itself) can only be charged from the charger, not usb, so it must draw more power than a standard usb.
It's also possible your Apple charger usb port is pinned to only work with "apple approved" products? Have you been able to charge other devices from it?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
phiffoo st o
Studiozut said:
Not sure if this helps, but the keyboard dock (unlike the tablet itself) can only be charged from the charger, not usb, so it must draw more power than a standard usb.
It's also possible your Apple charger usb port is pinned to only work with "apple approved" products? Have you been able to charge other devices from it?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
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I don't have a dock nor am I trying to charge the TF700 from a PC USB port. The Apple charger puts out +5 volts to anything plugged into to it and the TF700 apparently "knows" when the Apple charger is connected to it because it turns on if it's off.
Haidozo said:
I was planning on using my iPad charger to charge my phone, iPad, and TF700 while on the road. It puts out more than enough current at +5 volts but doesn't work with the TF700. The Asus charger outputs +15 and +5 and works with the Asus cable and an OEM cable, and also works charging my phone using a micro-B cable. Is the TF700 charged using +15 volts?
The TF700 booklet says it can be charged from a USB port, which is +5 volts. While that may be an impossible task on a PC, it still means that the TF700 can be charged using a USB cable and +5 volt charger. Why doesn't it work? Has anyone gotten a 2A +5V OEM charger to work with the TF700? Is there a pinout diagram for the Asus cable and charger anywhere? Thanks.
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It will charge VERY SLOWLY on 5v USB while turned off. Will not charge via 5v USB while on. The TF700 requires at least 12V/2A to charge while on. 15V/1.2A is what's recommended by Asus (based on their proprietary charger specs).
Here's a battery I use to charge my TF700 while on the go, and it also charges my phone, BT headsets and other devices. http://forum.xda-developers.com/showthread.php?t=1796750. Great battery, I highly recommend it.
AspenMan said:
It will charge VERY SLOWLY on 5v USB while turned off. Will not charge via 5v USB while on. The TF700 requires at least 12V/2A to charge while on. 15V/1.2A is what's recommended by Asus (based on their proprietary charger specs).
Here's a battery I use to charge my TF700 while on the go, and it also charges my phone, BT headsets and other devices. http://forum.xda-developers.com/showthread.php?t=1796750. Great battery, I highly recommend it.
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You are correct. With the TF700 turned off, an hour of charging with the 2A Apple charger had increased the battery level from 29% to 34%. I expect the TF700 to be fully charged in only 14 hours!
Thanks.
Have you considered a power inverter? I use this one with my A100 though I use a FM transmitter to charge my phone.
Somewhat related to this: in the past, when using devices that have a power block with a USB port and a charge/sync cable, such as an iPod or even my Galaxy Nexus, I've used a USB extension cable to give me a little extra slack. For some reason, that doesn't seem to work with the Infinity. I've tried three different USB extension cables and the tablet never shows that it's charging. Is there a certain USB cable I can use for this?
AspenMan said:
It will charge VERY SLOWLY on 5v USB while turned off. Will not charge via 5v USB while on. The TF700 requires at least 12V/2A to charge while on. 15V/1.2A is what's recommended by Asus (based on their proprietary charger specs).
Here's a battery I use to charge my TF700 while on the go, and it also charges my phone, BT headsets and other devices. http://forum.xda-developers.com/showthread.php?t=1796750. Great battery, I highly recommend it.
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I have that same exact charger. do you use the "I" or the "S" USB port?
I never knew what the difference between the two were
EDIT...i shouldve read the thread lol...you modified yours
I ordered a pair of cables from eBay item # 320942102464. A house charger and a car charger. I just plugged in the dock and seems to be working fine.
USB 3.0?
FrontRowJoe said:
Somewhat related to this: in the past, when using devices that have a power block with a USB port and a charge/sync cable, such as an iPod or even my Galaxy Nexus, I've used a USB extension cable to give me a little extra slack. For some reason, that doesn't seem to work with the Infinity. I've tried three different USB extension cables and the tablet never shows that it's charging. Is there a certain USB cable I can use for this?
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Are you using a USB 2.0 or 3.0 extension cable? It's my understanding that the Infinity uses USB 3.0.
You need 15v to charge the Pad (I kept thinking 11, but the adapter says 5V or 15V output). This makes sense since there are more pins. Standard USB has 5v rails (ther are 4 pins, I 5v power, Data+, Data-, ground). Since our chargers are 40 pins, my assumption is that there are more pins dedicated to charging and multiple pins dedicated to data (possibly a few that are dedicated and some that are for whatever data is being passed through (assumption)). If the adapter is outputting 11v then it can send more power through the cord and multiple pins can push electricity through. When you are only pulling 5v (i.e. most AC->USB transformers) you will need a lot more time to charge, hence the trickle effect (and don't turn on the screen!)
It can be charged with 5v if the tablet is off.
There is a jumper in the USB cable itself that kicks the Asus charger into 15v mode so it doesnt accidentally fry your devices if you plug in, say, your cell phone to charge for a bit.
To make a custom cable just throw 15v across three pins in the connector (5v each). You can find all the info here: http://forum.xda-developers.com/showthread.php?t=1633747
Yes, i know its for the prime, the connector is exactly the same, the pinouts SHOULD be identical.
DIY approach?
I've got a TF700T and a TF201 dock and a misplaced charger. I ran into the same trouble that a lot of people here did ....... generic chargers not working, USB on my computer only trickle charges the tablet, nothing for the dock, etc.......
After much poking around I learned that both require 12 volts to charge. That said I dug thru my junk and found a 2.2a 12v DC wallwart. I hacked apart a USB extension cable for it's female end, broke out my breadboard and put together a 12v USB connector... that after several days of charging and draining.... charging and draining .... works like a champ.
So to be a bit more specific, pin 1 that's normally 5+ volts I'm supplying 12+. Pin 4 is ground same as always and that's it. If you wish let me know I can probably throw up a little illustration or something.
Since I did that I've refined the whole thing a bit, cleaned it up, wired everything directly and heat shrinked the whole assembly.
It will charge both together or either one by itself in just hours EVEN while using them..... heavily. No overheating, no troubles.
HTH
AnakiMana said:
Are you using a USB 2.0 or 3.0 extension cable? It's my understanding that the Infinity uses USB 3.0.
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I think the cable type might only matter after the ics.30 update when I was on the ics.26 I could use a standard extention cable, I had my device plugged in when I updated and my device stopped charging, and I freaked out thinking I broke something. But after finally removing the extention my tablet would charge. I have not tried to use the extention cable since so I don't know if it works with jb.
Asus Transformer Infinity running CleanRom 2.7.x
Bluemgt06 said:
I think the cable type might only matter after the ics.30 update when I was on the ics.26 I could use a standard extention cable, I had my device plugged in when I updated and my device stopped charging, and I freaked out thinking I broke something. But after finally removing the extention my tablet would charge. I have not tried to use the extention cable since so I don't know if it works with jb.
Asus Transformer Infinity running CleanRom 2.7.x
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The Asus charger switches its output to 15V from 5V when a USB3 plug is detected. If you need an extesion cable to charge the Transformer, you'll have to use USB3 extension cable. If you want to use this charger on other devices, be sure to use a USB2 cable to not to fry it with 15V.
Kraka said:
If you want to use this charger on other devices, be sure to use a USB2 cable to not to fry it with 15V.
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Thanks for the warning - I hope there are no cables with USB3 and micro-USB2 plugs though.
I went to europe recently and brought along my TF-700. I have come back and cannot find the part that plugs into the wall that came with my transformer. Plugging it into another ASUS adapter (from my N7, for example) doesn't seem to charge the dock, nor does plugging the cable into a USB port on my computer. So my question is this: will this thing only charge with the factory plug that came with the Transformer? I don't want to pay 40 bucks for a new one if I can avoid it.
This thread might shed some light -TF700 charger/cable requirements?
Long story short, you'll need something capable of pushing 15 Volts at 2 Amps to get charging while the device is on. Other variations of voltage might work while the device is off. Most computers won't push 2A through USB. I'm a little surprised the N7 adapter doesn't do you any good, I've used generic 120V AC to USB adapters to charge the TF700 in the past.
If you put the charger cable in the tablet and the usb end in the tf dock, it will charge the tablet!
Basically, Yes. Any other Transformer chargers will work, as will any 15V adapters from other sources. The N7 adapter gives off 5V. It may be 2A, but the voltage is too low.
The AC adapter gives 15 Volt. A USB port only gives 5v, as do all regular USB chargers. The TF700 starts detecting a charge at 12V (light/notificationbar). At 5V, it will charge about 1-3% an hour, which is less than/equal to the amount if drains whilst sleeping. Oh, and if you have any other USB cable attached between the TF700's charger cable and the charger, make sure it's a USB3.0. Anything else doesn't allow enough voltage to pass through.
The Infinity Manual: (People, READ THIS THING. Even if you didn't get it in the box, it's on the official website.)
Page 10:
- Ensure that your ASUS Transformer Pad is turned off before charging it via your computer's USB port.
- Charging through the USB port may take a longer time to complete.
- If your computer does not provide enough power for the ASUS Transformer Pad, use the wall outlet instead.
Page 83, not relevant in this case, but to others who try:
- The ASUS Transformer Pad cannot be charged through the USB dock when it is connected to the mobile dock.
usern ameisval idandnot said:
If you put the charger cable in the tablet and the usb end in the tf dock, it will charge the tablet!
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If you have the dock, you can just dock the tablet in the dock the way it's supposed to......
I really like my Transformer, but the lack of charging options is an issue.
I'm looking for a dual usb port wall charger (a similar car charger would be great) that will output the 15v needed by the Asus tablets. I don't mind bringing extra cords, but don't want to carry a bunch of wall warts with me when I travel and I have a lot of other USB devices. I'd prefer one without a permanent cord. Anyone found one that works?
The trickle charge options aren't effective since even overnight I only get 20% or so of charge.
What exactly are you trying to do...
The supplied charger charges both dock & Tablet where as the usb will only charge tablet..
Am I missing something?
7495 said:
I really like my Transformer, but the lack of charging options is an issue.
I'm looking for a dual usb port wall charger (a similar car charger would be great) that will output the 15v needed by the Asus tablets. I don't mind bringing extra cords, but don't want to carry a bunch of wall warts with me when I travel and I have a lot of other USB devices. I'd prefer one without a permanent cord. Anyone found one that works?
The trickle charge options aren't effective since even overnight I only get 20% or so of charge.
Click to expand...
Click to collapse
You can safely use the Asus charger to charge all your other devices..
And if you have the tab with dock, you can hook another device to be charged up to the USB port of the dock. As long as the tab is docked and on, the dock USB will output 5V.
I believe He's asking if there are other USB chargers with more than one port that meet the TF700s power needs.
re: dual USB Port Chargers
BinaryW01f said:
I believe He's asking if there are other USB chargers with more than one port that meet the TF700s power needs.
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Click to collapse
That's it exactly. Previously I was able to travel with just a single 4 port USB charger (something like the Skiva PowerFlow QuadFire) which would charge my iPad, phone, camera, and a travel router while only taking up a single wall outlet (which also means only a single plug converter for overseas). I'd love to do the same with the TF700, but would settle for a dual USB port charger (one to port charging the TF700 and one to charge my phone, simultaneously).
While I can charge my phone from the dock's USB port I don't always have the dock with me and it doesn't allow me to maximize untethered usage. Generally I use the dock as an extended battery (assuming I'm not using remote desktop or the card reader) - docking the tablet to charge it, then plugging the dock into the charger while I continue to use the undocked tablet. If the dock supplied power to the USB port without the tablet attached I'd be fine, but no such luck.
Anyway, like many, the goal with the transformer is to minimize the weight and "stuff" I have to carry (in my case a laptop). If I could reduce things further by dropping a dedicated charger for one that served many purposes at the same time it would be great. Something like the Anker Astro3 battery back up but smaller and without the battery would work well.
Maybe, try this one...you could charge your Transformer, because of the DC Output, your Notebook and of course other USB Devices...
I think he mightve wanted something like thiswww.buy.com/prod/apricorn-ausb-y-usb-power-adapter-y-cable-3-28ft/q/loc/101/202641110.html. It doesnt give any tech specs, however it states that it would increase the output power. So I would assume the volts would stay the same, but you might get more amps from usb. Unfortunately, it would just be a faster trickle charge.
Sent from my SPH-L900 using xda app-developers app
7495 said:
I really like my Transformer, but the lack of charging options is an issue.
I'm looking for a dual usb port wall charger (a similar car charger would be great) that will output the 15v needed by the Asus tablets. I don't mind bringing extra cords, but don't want to carry a bunch of wall warts with me when I travel and I have a lot of other USB devices. I'd prefer one without a permanent cord. Anyone found one that works?
The trickle charge options aren't effective since even overnight I only get 20% or so of charge.
Click to expand...
Click to collapse
I got a couple of these from Meritline:
http://www.meritline.com/inland-nss13-wall-tap-surge-protectors---p-73426.aspx
I use my charger that came with the transformer in the main plug and the USB ports for my phone and Kindle. I got two from Meritline and brought a third at Target. You still need the Transformer charger but at least you get two more USB ports.
Anyone know the charger specs needed to charge this from the keyboard while docked? I have a couple and its not touching it.
ang1dust said:
Anyone know the charger specs needed to charge this from the keyboard while docked? I have a couple and its not touching it.
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the tablet requires at least 12v
Anyone know alink to a wall charger for this tablet? I went to best buy today and found they have nothing to sell me to charge my tablet. I tried my friends IPad 3 wall charger and it doesnt work. Someone suggested 12v but i cant find any of these with a volt regulation spec just wats. If anyone can suggest a wall charger and link it would be great. Thanks!
ang1dust said:
Anyone know alink to a wall charger for this tablet? I went to best buy today and found they have nothing to sell me to charge my tablet. I tried my friends IPad 3 wall charger and it doesnt work. Someone suggested 12v but i cant find any of these with a volt regulation spec just wats. If anyone can suggest a wall charger and link it would be great. Thanks!
Click to expand...
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Link first.
5v @ 2amp
or
15v @ 1.2amp
The label from my stock wall charger.
ang1dust said:
Anyone know alink to a wall charger for this tablet? I went to best buy today and found they have nothing to sell me to charge my tablet. I tried my friends IPad 3 wall charger and it doesnt work. Someone suggested 12v but i cant find any of these with a volt regulation spec just wats. If anyone can suggest a wall charger and link it would be great. Thanks!
Click to expand...
Click to collapse
the original charger has a dual mode operation, if you stick a regular usb cable it will work as a regular usb charger - 5v @ 500-2000mah, if you stick asus transformer cable it will switch to 15v @ 1200mah
asus cable sport a usb 3 connector but uses it in an non-standard way, pin 7 is used to switch modes, if the charger find it connected it will go into 15v mode otherwise usb mode.
on the other side, the tablet wont go into "charging mode" if it dont find at least 12v on its connector so if you want to build a diy charger you'll need one that at least has these specs.
NixZero said:
the original charger has a dual mode operation, if you stick a regular usb cable it will work as a regular usb charger - 5v @ 500-2000mah, if you stick asus transformer cable it will switch to 15v @ 1200mah
asus cable sport a usb 3 connector but uses it in an non-standard way, pin 7 is used to switch modes, if the charger find it connected it will go into 15v mode otherwise usb mode.
on the other side, the tablet wont go into "charging mode" if it dont find at least 12v on its connector so if you want to build a diy charger you'll need one that at least has these specs.
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Click to collapse
Will this work? http://www.digitalinnovations.com/chargedr-usb-charge-booster.html
al89nut said:
Will this work? http://www.digitalinnovations.com/chargedr-usb-charge-booster.html
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It might work but you will most likely damage your motherboard. Sucking more out than what is supplied will destroy it. Hence why FC mods are not highly recommended. Look at the specs of whichever computer you are going to plug that into. If it has sufficient power (most are standard 5v 500ma) USB ports. Just use caution. I personally just grabbed a powered USB charger. Meaning, there is a battery that can be recharged from a wall outlet, the charged battery then charges whatever i plug into the two USB ports. (up to 15volts) works great on my TF300T. However, i hardly need to use it. Battery lasts all day from a single charge overnight from the wall outlet.
al89nut said:
Will this work? http://www.digitalinnovations.com/chargedr-usb-charge-booster.html
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Click to collapse
just buy an asus transformer compatible charger on amazon...
Has anyone had a positive experience using an aftermarket sync cable or charger? I have bought a few (for other devices) in the past, but several have had issues (flaky touch screen during charging, slow/no charge).
I'm looking for outlet type, USB sync and car charger (long cord!).
Any good reports?
Search Amazon. I have had good experiences buying the cables. My cat seems like them and chews on the cables if I forget to put them away. I don't remember the brand but there is one where the cable casing is a rubber material. I think it's like 2 for 15bucks and they are 6' I think. I've had the best luck with those.
When I tried an aftermarket charger it was for the Prime. It didn't work at all but was also the first aftermarket plug being sold. Over heated and would stop charging a few minutes after plugging it in but continued to heat up. People are giving a few of them 4 star reviews. They may have gotten better now. Other than that it's buy the oem charger. I have not seen an aftermarket usb plug that can deliver the 15v required in these units. If anyone else knows of one I'd probably order one for work.
I bought some off Amazon from a brand/company called "Power +"
They work great, both the car charger and the wall charger. A bit better quality than the factory Asus charger as well.
I was looking into the same myself. I've read many horror stories of aftermarket usb charger/sync cables from Amazon, some seemed to work "great" while down the page I read other users having theirs not fit right/fall apart at the connector.
I could definitely use a longer cable as the stock cable is just too short to use from the socket to the desk, let a lone if I'm under less than ideal places like a lounge/library.
ssnova said:
I could definitely use a longer cable as the stock cable is just too short to use from the socket to the desk, let a lone if I'm under less than ideal places like a lounge/library.
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You can extend the cable with a USB 3.0 cable. (2.0 doesn't work).
I have this charger - albeit bought through eBay. I did not experience any problems with the charger itself, but the cable frayed where it meets the strain relief on the power brick after a couple of months. After taping up the connection, I am temporally using it to charge up the dock before I can get an OEM charger, but won't let it touch my Infinity itself.
i brought one real crap had to mess with it for it to work
Pwr+ Cables are awesome, They sent me one as a gift for posting a review of the ones I purchased too. kinda nice. I have the OEM cable now and three Pwr+, now I just need more power cubes. (Office Desk, home desk, bedside)
im_electronic said:
Pwr+ Cables are awesome, They sent me one as a gift for posting a review of the ones I purchased too. kinda nice. I have the OEM cable now and three Pwr+, now I just need more power cubes. (Office Desk, home desk, bedside)
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Where did you post the review?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Amazon. http://www.amazon.com/review/R3JD8T...e=UTF8&ASIN=B0093OWEOE&linkCode=&nodeID=&tag=
KHOMO 6.5' Pack of two
Nice length - quirky connection but works with charger and USB connection. If they made the connection a little tighter at the tablet it would be perfect.
http://www.amazon.com/gp/product/B007K94I2U/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
Anyone found a aftermarket 15V charger that will work for tablet and keyboard dock?
Mikerla said:
Nice length - quirky connection but works with charger and USB connection. If they made the connection a little tighter at the tablet it would be perfect.
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I also bought a two pack of these. So far, I have not had any problems out of them. I also got the power+ wall charger and it has worked great.
Chargers don't work
I have bought 2 chargers for my TF700 and neither works. When the first one didn't work I thought it was because is was 2000mA so I bought a 2500mA. Is this not a regular USB charger? What is the voltage?
Thanks
Ólafur
:crying:
The amazon links can't be able for a shipment to France.
Could someone help me to find the Cord Charging Data Sync Cable 3.0 USB to 40 Pin for Asus Eee Pad Transformer TF700T ?
Really appreciate the links here - have a need to buy another cable for my TF700
There is a protocol where the tablet instructs the charger to change to a 15v output. Nonstandard USB.
ken
Sent from my XT1080 using XDA Free mobile app
I'm currently using this one It works perfectly fine with the stock USB wall adapter and I'm really happy! It's just a damn shame we can't charge the tablet view our PCs...