Leo just got a Chevy Volt and it takes forever to charge on the 110 volt connector. Sam says you can use the 220 volt NIMA 1450 dryer recepticle and it'll charge a lot faster. Sam also says Leo needs to get a 240 volt wall charger and they cost about $450. You'll also need a level 2 adapter. Seimens makes one, but there are several brands available.