Beyond being a data interface, one of the best and possibly most well used features of the USB interface these days is as a charging standard for a wide range of devices, least not for phones. The USB-IF has already provisioned a couple of USB charging standards under the USB Battery Charging specification which is currently at versions 1.2, but is now looking at providing something a with a little bit more power.

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The USB-IF is working on a new power delivery specification