This innovative Leech Plug concept designed by RISD student Conor Klein ejects the power cable once the attached device is completely charged. Disconnecting itself from the power source stopping all energy consumption stops until the plug is inserted again.
Hence the name Leech Plug inspired by a leech as when its full a leech will fall from its host. Check out the video of the Leech Plug in action after the break.
This fantastic idea is only still a concept at the moment but this simple power saving and safety plug I hope will make it to production.
Via Cruchgear