Originally Posted by pdedse
By "battery chargers" do you mean the pig-tail, or the charger itself? It will be connected most of the time, but I might just bring a sealed battery down the next time so I don't have to deal with the maintenance.
They all have diodes. They have to get from AC to DC. Some leak more than others.
Just disconnecting a charged battery should work for you. It did for me for 10 months in Alaska.