dual battery setup

[mnmattie]

you have the selector switch that tells if the aux battery or factory battery is switched on. I also included a battery isolator like those on RV's to charge both batteries and using a continuous solenoid to switch on the aux battery. What do you guys think?

 

[Bob Ayers]

Looks to me like your AUX battery isn't hooked up......, and if it was, the green indicator would always be ON, draining the AUX battery

 

[mnmattie]

oh got me there, this is probably a better idea

 

[mnmattie]

 

[Bob Ayers]

What picks the relays?

Just a word of advice......buy a good battery isolator, and follow the suggested schematic.