USB 3.0 100W Power Standard Seeks To End Proprietary Chargers

Posted by Unknown on Monday July 23, 2012 @09:21PM from the tim-the-toolman-taylor dept.

judgecorp writes "The USB 3.0 Promoter Group has published a Power Delivery standard which will deliver up to 100W. The specification (press release with link to full details) includes new bi-directional — and backward compatible — USB cables, and has been proposed as the new connector between mains adapters and laptops, eliminating e-waste by standardizing a proprietary component." At home, only having to run one cable to the wall might be nice, and being able to grab some juice from any friend may end the disaster that is forgetting your laptop power brick when on the road. And imagine only having to pack a single power hub instead of three or four redundant transformers (how many people don't use their laptop to charge their phone nowadays?).

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Re:Cables double as space heater by gigaherz · 2012-07-23 21:35 · Score: 5, Informative

From he article: The high power charging will require special, electronically detectable and very clever “USB Power Delivery” certified cables, which will be backwards compatible with all types of USB 2.0 and 3.0. So yeah, if resistance > X, its not a proper cable and you can't use it for > 4.5W (standard USB3 charging power)