- Follow the wires attached to the battery isolator and make a note of which terminal is attached to the chassis battery, the coach battery and the alternator.
- Check that terminal one is wired to the coach battery, and confirm with your operator's manual that this is correct.
In this manner, how does an RV battery isolator work?
The battery isolator is attached to the vehicle's alternator, which is the device responsible for providing the vehicle with electrical power and for charging the vehicle's battery. The battery isolator uses sensors to determine the number of batteries it is connected to and to draw power from the strongest battery.
Also know, how do you wire an RV battery isolator?
How to Wire a Battery Isolator in a Camper
- Decide where you will want to mount the battery isolator.
- Hold the isolator in place and attach it by drilling in sheet metal screws through holes preset on the case of the isolator..
- Disconnect the negative cable from your engine's battery.
- Disconnect all the wires attached to the "BAT" terminal on your alternator.
Battery isolators do just what it sounds like: They isolate your RV “house” batteries from your vehicle's SLI (starting-lighting-ignition) battery. At the same time, the isolator allows your house batteries to charge up by drawing on your chassis or tow vehicle alternator.