@gmaster , not sure why you would want a 60amp charger, if your running a heavy load that depletes a large battery bank then I would suggest carrying a gen set. As @travelvolts says, you will ruin the batteries very quickly, alternators have to cope with running all the vehicle electrics as well as replacing the starting charge, and this is why they can be rated quite high. Watching the soaps etc consumes less, and with the Ebby and webby, you are better off with a larger bank for amp hours, but this is normally better supported by solar and dc to dc. That's my take on things anyway.
Sorry, crossed in ether,
Sorry, crossed in ether,