When whoever invented the USB interface (Universal Serial Buss) they probably had no idea how universal this connection protocol could become. The USB connector is starting to show up on all sorts of devices to serve a function that is no longer limited to data transfer.
We spend a lot of time watching trends in rechargeable batteries, and the use of the USB interface as a port for charging a battery powered device is really starting to become common. IPODs and other MP3 players, cameras, recorders and lots of other devices with onboard rechargables now use the USB connection for battery charging. You can use the battery charger supplied with the device is you want to, but the real value in this set up is that it gives your computer (laptop or otherwise) the dual purpose of being a universal battery charger. Best of all, the battery can be charged while you use the computer for its intened purpose with no slowdown in its performance.
Travelers who are tired of having to carry a battery charger for every device in their bag (think Martha Stewart facing down the CEO of Sony) can now look forward to having one powerful multipurpose device charge batteries in the background. You can forget about which computer platform you use as well. A device that charges off a USB port doesn’t care if you are a PC or Mac user. “Universal” really does mean “universal”.
Anybody considering a battery powered gadet purchase for a Christmas present (particulary for a road warrior) ought to be sure that the device is equipped with a USB connector that serves the dual purpose of charging the battery.
Perhaps this really is the beginning of the end for a different charger for every device.
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