Originally Posted by trdutch
I'd like to get a definitive answer on whether or not my unit 2014. ('13 chassis) 2860 needs the battery switch "on" to charge while plugged in at the farm where it's parked
I don't want to waste electricity for all the plugged in items (TVs,Micro,clocks etc.and anything else that uses residual power)
Residual power use is minimal and there are loads such as battery controls, generator controls, slides, awning power etc that are directly wired to the battery and not shut off through the switch. If you are concerned why not disconnect the batteries and use a "Battery Tender" to maintain the batteries. IMO it's a better choice than the onboard converter since a Battery Tender is specifically designed to maintain batteries and not other functions.
2014 was around the time FR swapped to a Power Dynamics Converter which allows the switch to be off and still charge the batteries on shore power. Check and see if you have a Power Dynamics Converter, if you do you can leave the switch off.