Right, this is useful info in general. Also, in one of a Zero owner's youtube videos featuring Morgan, Morgan showed a teslatap which was pretty much the same size as the tesla's J1772 -> tesla adapter. Would be awesome if this can be made available to all.
Here (below) is the granny cable that I take with my Energica. This way, I can charge at 3 KW, from 240 VAC outlets, such as in Genoa, NV or even from the 120 VAC outlet at the Target store near there with my Energica at 1.5 KW.
I will soon make another for my Zeros, so I can charge it also from 240 VAC outlets at 6.3 KW, with my external chargers. A 240 VAC outlet charges the same as a J-1772.
Notice the output side is very much shortened. Much lighter and much smaller. The input side doesn't matter how long it is as it will connect to a common 120 VAC extension cord (not shown). At the end of it, I have an adapter for 240VAC which I feed the 120 VAC extension cord with. The common 120 VAC extension cord doesn't even get the slightest bit warm from 240 VAC running 3KW to the bike. With this and also a Tesla Tap I can pretty much charge anywhere possible while on the road.
-Don- Reno, NV