Dry camping battery charging options

It goes without saying that being frugal with your electrical use (limit lights, water pump, electric awning, etc.) will extend your battery use. I have found, however, that the real problem is parasitic loads. Some are important enough that you should never try to defeat them (CO detector/ propane leak detetctor) but todays refrigerators have a climate control (or some other similar name) that applies power continuously to a heater in the door to prevent condensation from forming. Some models have a switch that enables you to turn this feature off but many do not. If you do have the switch turn it OFF to extend your batttery. If you have no switch you may be able to find the connection to the heater on the control board and unplug it. Your installation manual probably has a schematic diagram that my help you to find this connection.