Namely, that the "plug" part of its name ... a new wireless/inductive charging system to recharge the battery without the fuss of a cable." A cord-free Prius is not coming anytime soon – system ...

which reports that a wireless plug-in vehicle charging system may be less than two years away for the Prius Plug-in. WiTricity has, for a few years, been developing its magnetic resonance wireless ...

while more expensive states will set you back by about $4.17 every time you plug it in for a charge. Like the Prius Prime, you only get a 120-volt-rated charging cable for household use.