|
the leaf has a charger built in that can take either, so nada. 120 is ~%75 efficient (and slow) and 240v is ~%90 efficient and about 3 times faster. So %15 difference in costs I guess. The openevse kit is maybe $400 with a j1772 plug, + $30 @ lowes for 240v fixins. So that is another 240v cost if you charge @ home.
I've been poking about at charger design and 240 is a lot easier to design for at typical battery voltages/currents. You pretty much have to limit yourself to a 15 amp breaker for 120v capability to make any sense (~1.5kw) as an opportunity charge plus you have to boost it more.
|