Portable Battery Charger Has anybody tried using a battery charger for their Asus Transformer? I will be taking a very long flight soon & I'm hoping that my portable lithium USB battery charger will work. I'm almost afraid to try... Or, can I charge the tablet with a laptop via USB? Anyone? Thanks~ :> Portable Battery Charger Has anybody tried using a battery charger for their Asus Transformer? I will be taking a very long flight soon & I'm hoping that my portable lithium USB battery... » Read More Portable Battery Charger Has anybody tried using a battery charger for their Asus Transformer? I will be taking a very long flight soon & I'm hoping that my portable lithium USB battery charger will work. I'm almost afraid to try... Or, can I charge the tablet with a laptop via USB? Anyone? Thanks~ :> « Show Less
1533471
So far, I've tried the PowerGen Duo-Power 8400maH & 4400maH External Battery Pack. Both do not work too. I do not have the dock(No need for keyboard) so I can't attest to whether it works with them. It was a long shot but I've also tried the Macally JBox Portable charger that has 1700maH & that does not work too.
1533472
From what I've seen, these external batteries only output 5V (which is what most devices use). Even though the Asus Transformer uses a USB cable+adapter, it requires 15V to charge which is what their special wall adapter will provide when it detects a Transformer is connected.
1533473
Yea I also tried several different portable charges that can recharge many different tablets, includinf Ipad, Samsung Galaxy, etc. It looks like ASUS Transformer designed the way that it can be charged only from wall outlet, not from external battery charger. Not very wise decision by Asus but it is what it is...
1533474
Hello there - I am doing my own search for external power for an ASUS slider, which has the same issue of requiring 15V input. I am looking into multi-output battery pack / laptop battery packs. They are more expensive and larger than the others I have (Newtrent, powerGen), and do NOT have the 15V USB out so would need some type of conversion cable. Will let you know what I end up with and if it works. I am contacting a few of the laptop brands to see if they will work with ASUS tablet. Good Luck!RJ
290894
I am looking for the answer myself. Bought external battery pack Itrent with 11000 ma power that recharges any tablet on the road, but asus transformer does not work with it. Asus does not offer any solution also. Any clues from asus transformer owners?
1533475
I read that the wall charger has some authentication in it to detect when the Transformer is connected. If the device is a Transformer, it bumps the voltage up to 15V? otherwise it stays at 5V 2A max. So, the battery pack would need to be able to something similar if that is true.I'd like an external battery that I could use in the event my pad+dock were both low on power. Anyone found a battery that works?Info from http://www.transformerforums.com/forum/asus-transformer-accessories/6267-asus-transformer-charger-safe-other-devices.html
1178416
Hello. The included Power Adapter is a 110v charger. It will not work with 220V power supply. To use the Charger with 220v you would need to get a 220 to 110 Adapter Converter. (Be sure that the Adapter converts the power and doesn't just pass it through, or that will damage the Tablet.) Thank you
2032374
Only adapter that works based on forums is the one from Acer. Since it is a micro USB that is actually longer at the tip go with the one from Acer. There are too many people complaining about purchasing chargers for this tablet that do not work.
386161
Anyone crack one open and see if this is anymore than a transformer and a couple diodes or is it an active charger that dials back the voltage or current when the battery is charged? Thanks. (I know it's only $8, but still wondering)
1508403
Easier still (and you'll have it for other things) get a DC to 110 volt AC converter, plug it into your car power outlet (we used to call them cigarette lighters) and plug in the charger that came with the tablet (then there won't be any question as to whether another "car charger" will work - or cause damage).
1293119
Yes, as far as I can tell it will charge tablets like the iPad as well as cell phones, but not regular laptops. I purchased it mainly to use on lengthy Trans-Atlantic and Trans-Pacific flights, and I can say from experience that it works like a charm. I highly recommend it.
434041
You have to use Asus's wall adapter. Others will not work. I suggest purchasing this product since it includes one of these adaptors: ASUS 10/18W Adaptor for Transformer Series Tablets(Just copy past that into search)
809041
The device has a USB connector for charging, you use the cable that came with your cell phone or tablet to charge by USB. A Laptop battery would be too large, I would not expect to get a laptop battery charge through this. If you have a laptop that charges by USB (i do not know of any) , theoretically you could charge with it, even if partial.
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I use the flat fat charger. I believe you can also use the usb charger, but it takes longer.
180458
Tablet will charge from USB port. I plug an inverter into "cigerette" port and plug my laptop charger into inverter when my laptop battery is low. I have never tried to fully charge my laptop with it. If I wanted to do that I probably would not use the Bestek but use the car "cigerette" port directly.
1464168
No, but you can use most of AC charger that has USB. I am using AC charger for tablet.
393296
I use it to charge my Asus Transformer tablet, my ipod, and my phone. It has always worked just fine. It takes the usb-type universal cords.
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I don't know about all the transformers but the TF100T (Windows 8.1) ASUS Transformer does work. This device can be plugged into the micro USB port on the table or the USB 3.0 port on the keyboard.Remember, USB To Go simply means that the micro USB port on your device s capable of acting as an USB master device (like a PC) and not a slave device (like a flash drive or other USB peripheral). There is no magic here, if your tablet / smart phone / whatever has USB To Go then ANY supported USB peripheral plugged into that port will work. The USB To Go cables I have here are merely a male micro USB to female USB A port adapters. I don't know about all the transformers but the TF100T (Windows 8.1) ASUS Transformer does work. This device can be plugged into the micro USB port on the table or the USB 3.0 port on the keyboard.Remember, USB To Go simply means that the micro USB port on your device s capable of acting as an USB master device (like a PC) and not a slave device (like a flash drive or other USB peripheral). There is no magic here, if your tablet / smart phone / whatever has USB To Go then ANY supported USB peripheral plugged into that port will work. The USB To Go cables I have here are merely a... » Read More I don't know about all the transformers but the TF100T (Windows 8.1) ASUS Transformer does work. This device can be plugged into the micro USB port on the table or the USB 3.0 port on the keyboard.Remember, USB To Go simply means that the micro USB port on your device s capable of acting as an USB master device (like a PC) and not a slave device (like a flash drive or other USB peripheral). There is no magic here, if your tablet / smart phone / whatever has USB To Go then ANY supported USB peripheral plugged into that port will work. The USB To Go cables I have here are merely a male micro USB to female USB A port adapters. « Show Less
898213
I have a ASUS EEE PC Netbook and it works with mine. My ASUS AC adapter says 12V so on my portable battery I just set it to 12V and use the adapter tip that fits. Will it have an adapter tip that fits your? I can almost assure you it will. Before buying I read it takes up to 60 hours to recharge via solar energy but it was the juice that I liked - 23000mAh. There is now a new one out "Ycpower Mp-s23000 II Solar Charger 23000mah" and what I read is it takes 12 hours to recharge via solar energy. Another great on I have is 33600mAh battery bank. this is almost a great portable battery (Google search it | Amazon sells it). It doesn't go as low as 12V though. Starts at 15V - 24V. Excellent for USB charging on extended trip such as 'Rafting the Grand Canyon' to Charge your GoPro HD Camera. ------ Again It works with my ASUS EEE PC Network so it should yours too.
427224
Sort of. Your question sounds like you want to use your adapter with it. Instead, use the micro USB to USB 2.0 cable to plug into this battery pack. It has 2 standard USB 2.0 ports that allow you to plug your device into it just like a normal adapter. Think of it as a portable wall plug that already has your adapter plugged in. I believe it charges at less than the 2.0 amps required to charge a tablet at the same rate as the tablet's adapter. It will still charge it, just a little slower. I have a large smartphone that uses the 2.0 amp adapter, but this still charged my phone fairly quickly, with enough charge left over to charge it again. I hope that answers your question. Sort of. Your question sounds like you want to use your adapter with it. Instead, use the micro USB to USB 2.0 cable to plug into this battery pack. It has 2 standard USB 2.0 ports that allow you to plug your device into it just like a normal adapter. Think of it as a portable wall plug that already has your adapter plugged in. I believe it charges at less than the 2.0 amps required to charge a tablet at the same rate as the tablet's adapter. It will still charge it, just a little slower. I have a large smartphone that uses the 2.0 amp adapter, but this still charged my phone fairly... » Read More Sort of. Your question sounds like you want to use your adapter with it. Instead, use the micro USB to USB 2.0 cable to plug into this battery pack. It has 2 standard USB 2.0 ports that allow you to plug your device into it just like a normal adapter. Think of it as a portable wall plug that already has your adapter plugged in. I believe it charges at less than the 2.0 amps required to charge a tablet at the same rate as the tablet's adapter. It will still charge it, just a little slower. I have a large smartphone that uses the 2.0 amp adapter, but this still charged my phone fairly quickly, with enough charge left over to charge it again. I hope that answers your question. « Show Less
1478799
Hi There, the charger has a USB output which will send power to any device that has a usb charging port or can charge with a USB adapter. If you have a battery charger that will accept power from a USB adapter cable (i.e. one end fits into your battery charger, one end is USB) then it might work for ya. It's basically a big backup battery designed for charging devices, not necessarily batteries. However, you may be able to make that work if you have a battery charger that meets the above requirements.
1998395
It has been awhile since I purchased this charger for my Asus Transformer EEE. I use it quite often and it has done a great job- hope this helps!