Having trouble getting the battery disconnect to cut power.
Installed on the neg post of one battery with a jumper going to the other battery neg post . First post has trailer ground and jumper on neg post. All the rest of the trailer wires are on the pos posts of both batteries.
when the disconnect is open I have power and closed I have power.
Very confused. Confirmed with an amp meter the disconnect is working properly.
scratching my bald head
Does anyone have the answer??