Wiring Two 12 Volt Batteries

Volt batteries rv together connect electricity battery connecting mike ask just hookup switch travel where Rv electricity – just ask mike (j.a.m.): can i connect 6- and 12-volt

RV Electricity – Just Ask Mike (J.A.M.): Can I connect 6- and 12-volt

RV Electricity – Just Ask Mike (J.A.M.): Can I connect 6- and 12-volt

RV Electricity – Just Ask Mike (J.A.M.): Can I connect 6- and 12-volt

RV Electricity – Just Ask Mike (J.A.M.): Can I connect 6- and 12-volt