Short Version:
Can anyone point me toward a Lithium compatible 48V charger that can be fed with ~220V DC input? Something in the range of a few kW would be most useful, as the pack will be ~15kWh. If it could handle both 120V and 240VAC inputs in addition that would be big plus. Will likely need a 48V BMS solutions as well, so chargers that require BMS interaction would be ok.
I was excited when I saw Elcon's 85-265VAC input range on their PFC series, but they said their chargers can't run off DC. They suggested Zivan, but there's a hole right where I need it between the 200VDC max on the 120VAC model and the 240VDC min on the 240VAC model.
Longer Version:
Looking at a large offgrid solar setup for an RV. Already have a full Leaf battery pack, so was thinking about using that instead of dragging around a ton of lead.
It would be nice to preserve the original pack configuration and use the Leaf BMS, charger, maybe even AC Compressor and heater. But finding an AC inverter / solar charging solution for a 360V battery seems like a long shot. There could be a chance of doing it with one of the new inverters designed to interface to a Tesla Powerwall or LG pack, but I don't know that anyone has reverse engineered the communication interface yet.
So that pretty much leaves me having to go the more standard 48V route. At least there seem to be some Lithium compatible 48V solar charge controllers out there, and of course plenty of 48V inverters. That leaves charging off shore power (120V 15-30A or 240V 30-50A) and emergency generator backup.
Rather than having to buy and haul a generator, I'd like to use the Prius that we'll likely be towing anyway as our emergency backup power source. I can always go the "traditional" route and use an old UPS to convert the Prius's 220-240VDC to 120 or 240VAC, and then run the charger off that to put power back into the batteries. But with a charger that could take that DC input directly that would be one less power conversion and one less big piece of equipment to buy and haul.
Thanks for any thoughts!
Rob
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