Leech Plugs helps you save power

Want to do your bit for the environment? Chances are you would have known about vampiric plugs that suck power even when the device connected to a power outlet is turned off or fully charged, which is where the Leech Plug steps in to save the day. Working on a similar principle like an actual leech (sans the blood), this unique power adapter is smart enough to disconnect itself from its host whenever the host is fully charged. This is made possible thanks to a timer circuit alongside electromechanics which enables it to detach itself from the wall once fully charged. Do you think the Leech Plug will ever become mandatory in every electrical device?