I have seen a couple of EV installs including Tesla, Nissan and Volt (Chevy). I like the idea of the hight battery pack voltage but I think you still need viable BMS. I also think the reduction in wire size and amperages more than make up for the losses from stepping down the utilization voltage back to 12vdc. I have only one Easy Start on my largest AC currently but will install another once I shake out my LiFePO4 install.
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SOB
2015 Volvo VNL780 D13, iShift, 32k ET air hitch, Idle Free LiFePO4 APU
16.8KWhr LiFePO4, 2.52 kw solar, 10kva Victron split phase
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