yashsingh1/xdaforums huggingface dataset:
[Eee Pad Transformer Accessories] jdubau55:
I just bought the TF at BB and I am disappointed in the fact it's super hard to charge on the go. I keep a USB wall and car charger with 6' microUSB cord in my car at all times for those times I need a power plug. I also have an inverter I keep in there for wall plug connections. Just sucks that no matter what you need the stock ASUS plug to charge and they are super pricey. Where are the Chinese knock offs for $3?
[Eee Pad Transformer Accessories] Sziehr:
I googled the bullet adapters. Most show a picture of an adapter marked with an output of 5.0 volts. One, however, on Amazon was marked with 12 volt output so if you get that one, it should work. My concern is that you would be getting an unregulated power source, not sure how safe that would be.
[Eee Pad Transformer Accessories] ganassa:
Unfortunately I can't order that item from Amazon.com - I'm outside U.S.

But I've found the same - and it guess from the same seller - on ebay:

http://www.ebay.it/itm/MINI-BULET-U...ccessories&hash=item3a6d4229cf#ht_2333wt_1122

I've just ordered. It will take some time to have shipped from U.S. to Italy, but I'll let you know.

Before using it on the Tranformer I'll try to check Voltage and Amperage output continously to check how much it will be safe to use it on my expensive Android ;)
[Eee Pad Transformer Accessories] jdubau55:
So do we know what pins on the connector are for power?

I have 5 of the connectors coming from TE as a sample. Ideally I will buy a $10 12V DC wall plug with a barrel plug and then just hack the connector to the power plug. A much longer wire and no need for the sync cable I hope.
[Eee Pad Transformer Accessories] Pierre118:
Yesterday I received my Dynex Universal AC/DC Charger for Cameras and Camcorders Model: DX-UA. It works without any problems on my TF101. So, if you're looking for a cheap charger, this is the one.
[Eee Pad Transformer Accessories] jdubau55:
Got the connectors from Tyco yesterday. Perfect match. The pins are crazy small though. For charging I would say cut off all the pins but the ones for power.
[Eee Pad Transformer Accessories] dirtywolf:
Unexpected success

I just had success with the following setup:

Energizer XPAL (the XP18000) - it's a external LiIon battery designed to be used with a variety of devices. (First post so external links are disabled but a google for xpalpower and xp18000 should get you there). I originally purchased it for charging my mobile/cell phone, MP3 player, laptop (etc. etc.) on long flights.

I then used the following arrangement:

XPAL 16-20V output (blue) -> NB06 tip ("green" officially for 9-12V devices) -> (optional) WG03 cable (for 9-12V devices again) -> generic USB power adaptor -> Origianl TF101 sync/charge cable -> TF101 (keyboard dock).

Successfully charged at about the same rate as with the official adaptor, so obviously the input charge circuit is fairly forgiving of over-voltage charging.

I'd post photos but again external links are denied because this is my first post :(

I tried a similar arrangement with the tablet by itself - no joy :( but at least I can now charge on the road!

The Xpal, can of course be charged by most adapters with the appropriate tip, and means you have a stable, constant DC source that is less likely to fry anything from a power spike!
[Eee Pad Transformer Accessories] blackssr:
See post # 228
[Eee Pad Transformer Accessories] mrgilmorean:
USB chargers

My charger died last night and nothing I've done has been able to revive it. I have scoured this thread for solutions but there's a lot to read and remember. Apologies if this is a repeat of something from earlier.

I have found that the AC adapter that came with my Sony Reader works pretty well for charging. It is rated at 5V/1.5A and while the tablet still only charges when the screen is off, the rate is now 10-12% an hour vs. 2% through the computer.

I figure anything with similar ratings should work well too.
[Eee Pad Transformer Accessories] alienix:
Tank you DevCake for your mod.......... work fine!!!!!!:)

Ciao
[Eee Pad Transformer Accessories] DevCake:
Making a car charger is easy and should cost you less than$12. It's laid out in the original post.
[Eee Pad Transformer Accessories] jdubau55:
Found a charge brick I already have that should work. Need to get a female barrel plug with leads to test the connectors from TE. Will at some point try to make the connections. I think the brick is for an external hdd or DVD I have. Would make a cheap mod for users that might have one laying around. It would also not be a permanent mod.
[Eee Pad Transformer Accessories] FunkyMcBain:
This was so easy, found a 12V 1.5amp black brick, a female USB plug and that was it. That stupid one that comes with the unit is terrible, it was dead out of the box for me. This thread helped me figure out what I needed so thanks to everyone who posted info
[Eee Pad Transformer Accessories] leonpr:
Ok prob best to post here instead of starting a new thread... I have a problem and can't think of the best way to solve it at the moment.

My USB connector on my charge/data cable has been destroyed, so I have a bit of a problem... I'm current on Roatan Island which technology & mail delivery don't really exist so I'm trying to figure out how to fix this. My soldering skills a pretty poor and my attempts to find a USB3 cable on this island to splice onto the 40pin has been met with failure... so I was thinking how else can I do this?

There is plenty of Mac stuff hanging around but not sure if the mac USB cables are just the 4 or 7 pin so I could just butcher one of those?

Ideas guys? Cheers.

edit: Should point out that I don't care about data transfer, just charging. Could I just put positive/negative into a connector and use one of the multi-voltage adapters? (or failing finding a connector just splice the cables together?)
[Eee Pad Transformer Accessories] reine-rainer:
24v car charger

Hello.

I need to use asus eee pad transformer in my truck(24V). Cheapest stuff what i find right now is this(using cigaret lighter adapter to make 220v and then use in car asus original wall charger):

I found from ebay 12/24v to 220v 12W inverter about 7usd

Is this gonna work or 12W its too low to charge and run pad same time?
[Eee Pad Transformer Accessories] tengtengvn:
Cut the cable. Use a multimeter to find out the correspond wires for pin1 and 4. Find a 12v adapter and wires pin 1 and 4 directly to it.

---------- Post added at 01:22 AM ---------- Previous post was at 01:20 AM ----------

http://www.ebay.com/itm/Custom-Made...?pt=US_Tablet_Accessories&hash=item4ab1562c76
[Eee Pad Transformer Accessories] reine-rainer:
24v charging

Thanks tengtengvn but the price is 15usd not 7usd :)

Has anyone tried to 24v converter to 220v 12w and then to use wall charger?
[Eee Pad Transformer Accessories] hshoem1:
It might be cheaper and easier to use a 24v to multi-voltage adapter. Please check here "www.powerstream.com/dcdc.htm" to see if this will work for less than 20USD.

hshoem1
[Eee Pad Transformer Accessories] reine-rainer:
Thanks, but there are very many ways to charge my transformer in the truck (24V). I'd just like to know, is this working or not. Please don't offer me other stuff (more expensive).

w.w.w.ebay.com/itm/POWER-INVERTER-CONVERTER-ADAPTER-AC-DC-24-V-12V-CAR-/390339358016?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item5ae209ed40

I need 13 pieces and to order 1 and wait 20+days to check this is lost time and then again 20+days ....this is little bit too much.

I'd just like to know, maybe somebody has tried to use this and can share his/her experience?
[Eee Pad Transformer Accessories] fisharry:
I wanted to thank DevCake, I bought two of these:

USB-DC-5-5-2-1mm-Power-Supply-Extension-Cable-Cord-Female

(Sorry not enough posts to post link)

This particular vendor seems to be pretty prompt to the US, I got it in less than two weeks at Christmas time!

I have several "extra" 12V 2A power supplies for external USB drives that either the drive died, or I stole it and put it into a computer :)

Works like a champ, I found two or three that the plug is the exact right size. So i didn't have to cut or splice any red and black wires (although I have before).

I know you have a lot of detail in the first post, but it might make it easier on people if you add that the Center "pin" is positive and the outer "Sleeve" is negative/ground, I had to read to about page 12 to find it (although I was pretty sure it was). There is usually a tiny little drawing on the power adapter that shows the polarity and it's easier to measure the DC plug for polarity if you have to than trying to measure the pins in the female USB connector. Didn't have a USB lamp handy :)
[Eee Pad Transformer Accessories] ganassa:
Update: finally my car charger has arrived. Here it is:

I'll let you know if it will work correctly - altough I have very few doubts about it.
[Eee Pad Transformer Accessories] xxgg:
It's bulky but fuction wise... it can handle charging tablet device(s).

http://store.rcaaudiovideo.com/weba...nt_category_rn=10011330&top_category=10011327

Can be found on Amazon.com

http://www.amazon.com/RCA-WP2UAR-USB-Wall-Plate/dp/B005VAOQVS

---------- Post added at 06:36 PM ---------- Previous post was at 06:08 PM ----------

Question:

Has anyone did a direct wiring from your computer PSU 12v (yellow & black) to USB 2.0 pin 1 & 4 ?

(just asking because OP said connecting 12~13v directly worked)

I just don't know how much Amperage would be used?provided?
[Eee Pad Transformer Accessories] ganassa:
Look here:

[GUIDE] The $6 way to charging your EEE Pad on your computer
[Eee Pad Transformer Accessories] tengtengvn:
Question is why?

If you have 24v source, use this one:

DC -DCHRD05003 Converter DC 24V 36V 48V 15-50V Step Down to 12V 3A Power Module

http://www.ebay.com/itm/DC-DCHRD050...061?pt=LH_DefaultDomain_0&hash=item3cc068bfbd
[Eee Pad Transformer Accessories] skacore:
Hey!

Thanks for the tutorial was really helpful as these Asus chargers are a real piece of ....:mad:

However I'm having a slight problem.

I'm form Portugal and for that reason I would have some extra costs and would have to wait a considerable time if I had ordered a charger and the usb extension to connect it to the charger.

For that reason I bought a charger in a Chinese store that met the requirements. Here's a photo:

http: //imageshack.us/photo/my-images/818/img20120114223425.jpg/

And since I had a usb extension, a normal one, male to female. I cut the male part, cut the charger cable and make the connections. Well I thought that it would suit the purpose and work proprely but instead what's happening is that I can only charge using the dock and yet it makes a noise in the dock port where the charger connects its really strange.

The good thing is that so far my transformer is working and it didn't explode through the process. The bad is that I wanted something more reliable :S and I also wanted to charge my transformer without having to use the dock as it charges in the pc (only 5 volts) with original charger (which works but only at 5 volts??!) and with my cellphone charger (5 volts) which however is to slow :|

Does anyone have an explanation, a solution to this problem?

Thank you and cheers from Portugal :D

PS: I forgot to mention something! Besides the noise (which is when the charger is working) it suddently stops making the noise and light in dock (the orange one) goes off. It also happend with another charger a 500 mAh one so I thought with thise 1000mAh it would not happen. Talking about that it can charge at 500 mAh!
[Eee Pad Transformer Accessories] tengtengvn:
Can you find another one higher than 1.2A? I have few 12V adapters for the external hard drives (1.2A) and they all work fine.
[Eee Pad Transformer Accessories] skacore:
So, the problem is the charger? I can try and find one different but if that's the problem why it's said that 1A will do the work?
[Eee Pad Transformer Accessories] Bob Smith42:
I had some cheap chargers from china that also made a noise, like a whistle. The cheap chargers were 15V and rated 1000mA. They would do all sorts of weird things, like start charging fine but stop charging after an hour. In other cases I could use the charger for a week perfectly, and then it started making noise. So, I stopped using them.

On the other hand, every Dynex charger (e.g. google: "dx-ua universal site:ebay.com") with the same ratings, 15v and 1000mA, has worked perfectly without any noise. I have used these for months with no problems.

It must be the quality of components in the charger.

Good luck!

pm me with address and i will send you free adapter: 5mm barrel to female usb.
[Eee Pad Transformer Accessories] skacore:
I've sent you a pm however I think it somehow didn't send o.O Well nevermind what I have to tell can be said here anyway.

First thank you for being able to send me the adapter fo free but I'm from Portugal wouldn't that be too expensive for you?

About the noise.. did your noise come from the dock/transformer or from the charger? Because what's really weird is that the noise isn't coming from the charger. Instead it is coming from the charging port in dock.

I also been searching for some Dynex and I couldn't find any with 15v. I guess I would go and buy a good charger in Portugal it certanlly would do the job.

BTW where can I find just the charger cable?

Thanks ;)
[Eee Pad Transformer Accessories] mrdracke:
Portable charger for asus transformer TF101

I was looking for a battery pack to charge my transformer.

Could not find one so I combined the following items:

* 12V 2 amp USB car charger (nice !)

(www).(amazon).(com)/gp/product/B005L8Q4VU/ref=oh_o06_s00_i00_details

* Cigarette Lighter Socket

(www).(amazon).(com)/gp/product/B0006TIRZA/ref=oh_o04_s00_i01_details

* DC power plug cable

(www).(amazon).(com)/gp/product/B000LFVFK8/ref=oh_o04_s00_i00_details

* Battery pack

(www).(amazon).(com)/gp/product/B0067X8JPC/ref=oh_o00_s00_i00_details

should be obvious how all parts must be connected.

Before soldering the power plug cable to the lighter socket make sure you first test that you have wired the cables such that the center of the socket is 'plus' and the edge is 'min' (easy enough to test with a multi-meter).

Also when charging you need to set the output to 19V BEFORE you connect your device. 12v or 16v for reasons unknown to me do not work.

With this setup I can full charge my device in about 3 hours.

And then the batter pack has still some left to charge the battery another 40% (so in total 140%).

So for the cost of about $90 dollars I have another 10 hours or so of portable use. I say 10 because typically I get 7.5 hours use out of my pad although asus claims 10 hours. So going by there logic you would actually get an additional 14 hours. Which is much better than what you get with the keyboard for much less.

hth anybody

ps. cannot post links since to new so you will have to modify and paste the links above ...
[Eee Pad Transformer Accessories] blickmanic:
Help

Hi guys, i just bought myself a transformer, will either of these work? Thanks alot everyone

And to confirm - do i just get a USB extender cable and put the PLUS terminal to red on the wire, and MINUS terminal to the black?
[Eee Pad Transformer Accessories] wherewillwhy:
joining the search

what about using like a iGO laptop charger ? has that been tryed . I have a tf101 and no charger. i do however have the device end of the usb cable . i just started reading the thread but any idea on what the orange , red , green , white , then the smaller gauge yellow are ?
[Eee Pad Transformer Accessories] wherewillwhy:
voila !

Well i figured it out . I had the 40 pin tip part of the usb cable . i simply hooked the red wire and the shield (ground) to the proper polarity of a old cable modem 12v 1.25a ac adapter and it works , for how long is anyone's:D question but i am going to monitor the charging state for awhile till fully charged and i will update this post . :D
[Eee Pad Transformer Accessories] skacore:
Velleman Charger 18W 15V@1.2A!

Well, as you know I had bought that cheap chinese charger (12V@1A) which makes that crappy noise, only works hooked to the dock and stops working without reason.

I've been using it and slowly it charges the dock and then the dock charges the pad! The thing is that the crappy noise makes me somehow not trust the charger and so I did a market search and came down to these two options:

1. Buying a original charger for 30€ (40€ with shipping). On one hand it will work just fine but on the other with might as well stop working after a few weeks (I heard that a guy had 5 original chargers and they all stopped working :eek:)

2. Buy this charger - http: //www.velleman.eu/products/view/?id=376256 The brand has name in the market (at least in Portugal and in Europe) and its specs match the transformer's ones: 18W, 15V@1.2A. And for 15€ (20€ with shipping) it's 20€ cheaper! The only difference is not working 5V@2A which I really don't need...

So as far as I'm concerned the second option sounds better my doubt is: I will adapt a usb 2.0 dc barrel adapter. Since usb 2.0 only works at 5V wouldn't that result in problems? Are any usb 3.0 dc barrel adapter available?

Thanks
[Eee Pad Transformer Accessories] micaman:
The usb 2.0 barrel adapter would be fine. The USB 3.0 cable requirement only comes into play if you are using the stock Asus charger.

The tablet barely draws more than 1.0 amps at 12v as per my testing here

http://xdaforums.com/showpost.php?p=21930625&postcount=55
[Eee Pad Transformer Accessories] DevCake:
@Carl

I'll list parts for the UK folks.

@ StuntD

Thanks, as long as people watch the polarity and voltage on the universal chargers they should be good.

FYI ALL,

I've found a 12V wall charger US that comes with a USB dongle as well, should be many more out there. This one was $12 at the local fry's.

http://www.x1up.com/.sc/ms/dd/Power... -- Universal AC^2FDC Adaptor with USB Output

Added to OP but as untested.
[Eee Pad Transformer Accessories] skchan2:
would this work?

http://amzn.to/jVU0uL
[Eee Pad Transformer Accessories] DevCake:
Yes but you need to add the 5.5 barrel to USB dongle to it. The USB port on that charger is always going to output 5V.
[Eee Pad Transformer Accessories] skchan2:
this has a pretty high amperage, should charge pretty fast without killing the transformer right?

http://amzn.to/igBNkS
[Eee Pad Transformer Accessories] DevCake:
Too high. The Asus charger maxes at 2Amp so I would stay under 2Amps. There are some 1800s out there but to be safe I'm staying around 1200. If you get that charger I would place another fuse inline rated at 2amps.
[Eee Pad Transformer Accessories] pasta1234:
If these methods work then why does the stock charger require a usn 3.0 extension out of curiosity ?
[Eee Pad Transformer Accessories] DevCake:
That is the 69K$ question. And because I'm a glutton for punishment I'm going to find out why and I think I have a feeling why.
[Eee Pad Transformer Accessories] dcmtnbkr:
Have you received these parts and tested them yet? have you seen anything that would work on amazon?
[Eee Pad Transformer Accessories] skchan2:
i went to my local radio shack and bout an enercell ac adapter thats rated 12V 1.5A...came with a free tip so i took the usb one...it charges the transformer fine...was about $30 though...

thanks DevCake for the info...

still wished ASUS sold the ac adapter...all i need is the flat piece that plus into the wall cause i lost mine...
[Eee Pad Transformer Accessories] sanelss:
Something worth trying is building a voltage doubler circuit to be able to charge it from a pc. The standard for usb is 500mA per port. With a standard y cable(as seen with some external unpowered hard drives) you can get 5v at 1A. Going from a voltage doubler circuit you can get 10v at 500mA(not counting efficiency). I'm not sure what the drain rate is or if this is even enough to over come that, but it will deff provide a charge.
[Eee Pad Transformer Accessories] DevCake:
The only thing I have purchased is a car adapter which I used with the other parts that I already had. It's working fine, on my bench and in the car. I've got a dozen or so 12-15V ac/DC adapters and plenty of cable ends so I plan to make a few chargers with spare parts. Which will be a direct usb female connector to DC adapter.

This is not a matter of "is it compatable with the TF". As long as the charger fits the requirements of 11V -15V at 1 - 2 Amps and you get the USB adapter cable for the charger it will work.
[Eee Pad Transformer Accessories] DevCake:
Can you solder? If I lost that snap on piece I would solder a connector on it to attach to a short cable with a plug on the end. At least this way you get your charger back and it will only cost you a short 2 prong extenrion cable.
[Eee Pad Transformer Accessories] DevCake:
One of my goals was to make this easy for anyone, i thought about the doubler but the way I look at it is cost and time. If you are at a computer you should have a plug to connect the tablet for charging. I guess if you want to sync and charge at the same time the doubler would be nice. Let me know how it comes out ;]
[Eee Pad Transformer Accessories] skchan2:
not too saavy with that stuff...i have a charger now...and hopefully when asus has better support i can buy that piece...thanks for all the info...great work...
[Eee Pad Transformer Accessories] verkion:
This would be pretty cheap to build...only 1 small problem I can see. The USB port only supplies 100mA until it "recognizes" a device at which point it switches to the full 500mA. I'm not sure how to get around this without an IC that can communicate over USB.

Thanks!

verkion
[Eee Pad Transformer Accessories] DevCake:
The big USB 3.0 extension cable has been solved. Updated the OP
[Eee Pad Transformer Accessories] SlimDan22:
Thanks

& Mods, Sticky!!
[Eee Pad Transformer Accessories] DevCake:
My pleasure, I kn2w it wasn't anything to complicated.

How do we turn this into a sticky? A vote?

And what's the deal with the "thanks" meter?
[Eee Pad Transformer Accessories] skchan2:
i bought this adapter

http://www.radioshack.com/product/index.jsp?productId=3807944

with this free tip

http://www.radioshack.com/product/index.jsp?productId=3643549
[Eee Pad Transformer Accessories] DevCake:
That adapter is a little pricey, this adapter comes with the tip for $12.99 at the local Fry's

http://www.x1up.com/.sc/ms/dd/Power... -- Universal AC^2FDC Adaptor with USB Output

Did they give you the tip free when you bought the adapter.
[Eee Pad Transformer Accessories] skacore:
So I can feel secure that my transformer wouldn't burst into flames right? :D

Well if it's so I will buy this charger. So far it's the only one that really matches the transformer!
[Eee Pad Transformer Accessories] micaman:
Well if it does go up in flames it wont be due to not using a usb 3.0 barrel adapter.

Best of luck with your testing.
[Eee Pad Transformer Accessories] skacore:
Well thanks ;)

When I test it then I post the results :)
[Eee Pad Transformer Accessories] ozgreg:
FYI a little tip for everyone reading this thread..

I recently came across the IDEO Portable Mobile Dual Charger (which is just a 8000mha battery) and started thinking maybe I could use it to charge up or supply charge my TF 101 during longer flights.... Well I got to say my jaw dropped when I plugged in the TF cord in the DC port and it actually started to quick charge!!.. Thinking at best I would get a dribble charge (which is what you usually get) I was very surprised at the result and bought the unit now I have an extra long life battery to charge if I need to on the go..

Hope this helps others..
[Eee Pad Transformer Accessories] StarTide:
What am I looking for in an Inverter?

I am about to go on a road trip and was looking at Inverters. Would this work for the TF101? What am I looking for in an Inverter? The ones I have used in the past were loud due to a cooling fan. USB port would only be used for my cell phone, I would plug the tablet in with the ASUS wall plug.

Wagan EL2402-5 Smart AC 200 Watt Inverter with 5V 2.1 Amps USB Power Port

I was thinking something like this:

BESTEK 75w charger dc ac power inverter car dc 12v to 110v car adapter

But it seems a little "cheap", but the cost is nicer.