Stazi,

I purchased a Perko switch. The original battery has a 50 amp circuit breaker attached to the positive terminal of the original battery along with the positive wire that feeds the boat power. So now that I'm connecting the positive wire from the boat to the Perko switch (instead of the direct to the battery) I think I need to do the same with the 50 amp circuit breaker wire. If I connect it direct to the battery then I would be by passing the Perko switch which I don't think is a good idea. (I believe it's similar to the fused terminal your diagram shows between the battery and the battery doctor.)

Do you agree?