"I had design this system to have the robot batteries being charged on the cart at all times even when your not near a Ac power source. To go along with that it provides a AC and DC lines for charging laptops and running some electrical tools depending on cart battery size and inverter being used."
I reference to the above information, be careful about doing this as we tried to do the same thing on a carrier that we built on year and we can to find out that the setup burned up three battery chargers running thru a AC to DC converter because the wave signal was different that the wave from the AC outlet. Just a thought from the past.
