Originally Posted by Duramax2017
Should this on board inverter be left on the on position at all times?
It all depends on if you have an automatic transfer switch (ATS) installed, which has a voltage sensor on the shore power input and will switch AC electricity between sources (shore or inverter) with shore power being the primary. If your inverter powers everything electrical in your camper, it will almost always have an ATS installed. If the inverter only powers one outlet or one appliance, or was installed aftermarket it may not have an ATS. And you may not need one if the 1 outlet it powers is ONLY powered by the inverter. If you know for sure that you have an ATS installed, leave that bad boy on all the time unless draining the battery while not using is an issue (then turn it off in storage). If you don't know if you have an ATS or not, the safest method is to never have the inverter turned on while connected to shore power. Basically, only one electrical source at any given time, never both.