Here's my final-ish project.
4.2Ah LiFePO4 battery in the glovebox, connected with a XT-90 plug. The positive lead goes through the firewall to the positive connector, and the negative lead terminates on the bolt in the glove box. There is a 2nd XT-60 connector in parallel, mostly because I decided to upgrade the wiring and connectors. I can connect a 2nd battery in parallel, or leave one plugged in while the other one is charging. There is a balance board connected to the battery. My 6s 350F capacitors are in series and have balance LEDs built into the board. I've had to replace 3 of the LEDs recently.
It's no virtual alternator delete. I'll have to tackle that differently, probably using a voltage regulator. I'll probably never try it considering I don't have much time, hardly ever drive the Acura, and plan to get an EV or PHEV soon. If I had sized my wiring and battery properly, I probably could have eliminated the ultracaps and started straight from the glovebox battery.
