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  1. C

    Boat Wiring Help

    My OB has a pull start for backup so I'm not overly concerned about not having enough battery for the starter.
  2. C

    Boat Wiring Help

    Thanks for the comments everyone! I'm going to go with the 2 switch setup I showed in the second diagram. Even if I dont use the switches to swap over battery sources, at least they will serve as cutoff switches when the boat is not in use.
  3. C

    Boat Wiring Help

    Thanks for the reply. As you stated, my primary goal is to have two isolated circuits. One for TM and one for everything else. I'd also like to be able to switch the source battery between the two circuits which is why I introduced the two 3 position switches. I tend to run my TM all day, but...
  4. C

    Boat Wiring Help

    I stand corrected. What I currently have are 2 marine deep cycle group 31 batteries. (Not dual purpose). Either way, i haven't had trouble using them to start the OB. My OB is a 1960s mercury and it doesnt have an alternator, so I dont have to worry about it charging the battery. Thanks!
  5. C

    Boat Wiring Help

    Thanks for the quick reply. I am using 2 matched dual purpose deep cycle batteries, so I didn't think it mattered if the trolling motor was on the same battery as the OB. Also, my OB is a 1960s mercury and does not recharge the battery when running. I am a little confused by your recommended...
  6. C

    Boat Wiring Help

    I was hoping to get some feedback on my boat wiring plans (see attached diagram). I have two dual purpose group 31 batteries. These will be powering my accessories (primarily fish finders) as well as starting the motor and running the trolling motor. I want to be able to have two isolated...
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