Now I just have to figure out if my Odyssey alternator can charge it up at idle through an inverter. Supposed to be a 130 amp alternator, but that is with the engine throttled up. I wonder how high I can set the charging watts?
Using a BMS, you could experiment (adjusting the Delta's draw and monitoring the chassis's battery state of charge response) to determine how much your alternator can handle. Here's Renogy's but Amazon also sells cheap (<$25) Chinese brands.
That was overkill for me. I simply bought an invertor that displayed battery voltage and throttled my Delta until my vehicle stopped giving error codes. My admittedly conservative numbers: during freeway driving I charge at 800W, during city driving 600W, and (very rarely) idling at 400W.