Good news regarding charging the iMiEV using an inverter.
I've built a battery bank consisting of two "24v" packs using Headway LiFEPO4 12AH cells in a 4P8S configuration, charged using a couple of PowerLab8 hobby chargers which include fairly sophisticated built-in balancing and monitoring. Nominal 48Ah 48V yielding a nominal capacity of 2.3kWh. Primary uses are to drive a 48v outboard motor, electric scooter, electric bicycle, and serve as home backup power source. Possible future is to use a dc-dc converter and feed the iMiEV battery pack directly as an onboard range-extender...
For the purpose we're talking about, any old 12v batteries would work.
Purchased a number of relatively-inexpensive 48vdc-->120vac and 48vdc-->240vac inverters off EBay
. These inverters are "stackable", meaning they can be paralleled to increase their output power. These are NOT "pure sine wave" inverters, but are good enough to run just about everything I have in the house. The iMiEV shouldn't care, as the first thing the onboard charger does is rectify the input to make dc for its internal dc-dc converter.
The fundamental need is to ensure the grounding is correct. The 120vac inverters, despite being "three-prong", do not have N
round tied together. I simply used the plug described above (that I had used with the Honda generator) and plugged it into the second inverter output socket.
Hooked up the 120vac inverter and successfully charged the iMiEV using my EVSEUpgraded Mitsu L1 EVSE, using first the 6A setting and then the 12A setting. No problem, and ran it for about 15 minutes with my battery bank holding steady at around 52vdc. The car made all the right noises, with the coolant pump properly cycling. This should also work just fine with an unmodified Mitsu L1 EVSE.
When I get time I'll put two of the 240vac inverters together and see if I can feed the iMiEV at full power (3kW) through my SPX EVSE as well as the EVSEUpgraded EVSE running at 12A 240v.