The IEEE published a new standard for universal power adapters for mobile devices. IEEE 1823-2015 creates a common interconnect for power delivery greater than 10 W and up to, but less than, 240 W to portable and fixed devices. According to the IEEE, this standard supports more universal use and reuse of power adapters replacing brand specific and model specific power adapters.
Description*
“IEEE Std 1823-2015 defines a power delivery connection between a power adapter and a power using device greater than 10 W and up to, but less than 240 W.1 A communications link between the power adapter and the mobile power-using device is also defined. The communications may be used to coordinate the power delivery and provide identification between the power adapter and the power-using device. While intended for portable computing and entertainment devices, power adapters conforming to this
*Description from the IEEE website.