I’ve got my kits designed and ready to go...I’ll be posting pics shortly so if anybody is thinking of running 2 batteries send me a message. As of right now, I’m not doing the isolator/seperator blah blah kits yet because realistically there are too friggin many variables and options. For now, this first kit will basically give you 12V power @ 2X capacity because the batteries are wired in parallel. This kit provides tons of extra capacity-not specifically setup for using a primary battery, then an aux battery for blades, winch, etc. Also, this kit assumes you are using stock type 1981-up aux battery trays and ideally 34/78-group batteries with top post lugs.