I am interested in buying one for charging my boat at home even though I have an onboard right now. My question is do you guys with the lester take it on the road with you for those away trips such as a tourney? I would worry about it walking away and wondering what you do. Not sure why BCB shys away from an onboard and if I get a Lester 36 volt then I also need a seperate charger for my cranking battery and I am not found having two chargers when I have a 4 bank now. Does Lester make a 4 bank? Thanks