Tech Talk: Battery Isolators — Part 1
![Tech Talk: Battery Isolators — Part 1](https://familyrvingmag.com/wp-content/uploads/2022/03/solenoid-cutaway-illustration-h960px.jpg)
Solenoids serve to connect or to isolate RV house and chassis battery banks. They incorporate a steel plunger and a coil of wire inside a casing and three or four wire terminals on the outside.
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