A little more info; I am talking for emergency back up only to jump start truck in case of dead starter batteries (2 batts=diesel).
Yes, the TC has 2 Gr 27 AGM's with 55A 3 stage PD charger/converter.
My concern would be in winter...when we would be carrying the genny with us as we stay put for a weekend of ski camping...if, for some reason the -isolated-truck batteries needed a jump...would it make more sense to use the TC batteries than to jump directly off the unregulated/8 amp Honda genny.
Yes, the TC would be plugged into the 120 side of genny.
Tx, B