Yeah I wana have a custom box built as big as I can go with as big of a port as I can have lol need to make up for all the extra room in the van and I plan on inverting it when I get the external voltage regulator on because the gain is all the way down right now my van only charges at 13.4 so I get down to low 12s pretty quick unless I’m driving ☹️ And quick question can I set my external regulator to charge at 15 volts would that be safe?