In my case (having 440w of solar and a single 200a/h lithium battery), I disabled the charge wire coming from the truck at the pig tail since with sufficient solar theres really not much need for it, and because of lithium’s characteristically high 1C charge receptivity rate, to avoid any possibility of alternator overload…
After doing such, after a month or two of vehicle non-operation I rudely discovered the truck batteries had died, but luckily my uber trusty Optimate 6 maintenance charger (with recovery mode) was able to bring them back to life.
