I'm building a portable-ish system with a MultiPlus 24/3000. The main switch on the MultiPlus will not be easily accessible. I'll have the positive line run from the battery thru a disconnect switch on its way to the MultiPlus. The negative directly from battery to MultiPlus. The disconnect switch will be in the OFF position for weeks at a time.
I'm going to hook up a separate smaller cable to the voltage sense terminals on the MultiPlus. I am planning on hooking the voltage sense cable directly to the battery terminals (not the disconnect switch) but I want to know if it is ok to leave the disconnect off while the voltage sense cable is connected.
Is there a problem with this? Is there a little current flowing on the voltage sense cable even with the disconnect switch OFF? If so, how much?