A 12000mAh USB battery pack can be used for a tablet PC if it has the appropriate connector. Most table PC's use a proprietary connection which limits the type of battery which can be used.
You could buy a USB battery pack from many reputable retailers. This includes Amazon, Best Buy, TigerDirect, Buy, and Newegg. All of these retailers offer a USB Battery pack.
USB devices take power from the device they are plugged into to operate. The message is a warning warning suggesting you unplug the USB devices to conserve the power of the tablet's battery.
If you want to buy a new USB battery pack you should try Radio Shack. The staff there is always helpful and knowledgeable. You can also try Target or Staples.
Have you been wanting to figure out what is available in the way of USB battery pack technology? This is still a relatively new type of device, so it is a big issue in terms of price. You may find that these battery packs can be expensive at certain retailers.
There are great USB battery chargers to suit many needs. These include the Duracell Powerhouse, the Mophie Juice Pack Powerstation Mini and the HyperJuice Plug.
plug it in USB is your friend just like google
Yes plug the USB cable in the tablet and other end in the computer . Turn the computer on and tablet will charge.
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You can charge your Touch by connecting it to any computer's USB port, by using a plug-in USB power supply, or by using some form of USB battery pack. I don't know if any of these fit your definition of "without using a charger".
The answer is no.
it is like a usb but is bigger and hold more