If we use three 12V 100AH batteries ($225 ea.), we could generate about 15A for 20 hours at 12V. But this is only 1.5A at 120V! This is about one-tenth of the 3.5 kWH total needed to charge the LEAF completely in 15 hours or so.For level 2 charging, we have a Schneider Electric EV charger that expects 220V at 30 amps input. Again, with three 12V 100AH batteries ($225 ea.), we could generate about 30A for 10 hours at 240V. We could also buy an AeroVironment portable TurboCord for $650, which does both 120 and 240V charging and plugs into standard electric outlets.
|Level 1 120V||15 hours|
|Level 2 240V, 3.3kW in car||8 hours|
|Level 2 240V, 6.6kW in car||4 hours|
|Level 3 500V DC Fast Charge||< 1 hour|