Quote:
Originally Posted by FF
"Would also work, except again requires some user intervention to ensure a good starting battery which the continuous duty 90 amp relay will accomplish.'
This is how RV have been doing it for 6-7 decades.
To make zero knowledge or work from the operator , they use key switches with an ACC position.
The alt is wired to the start , and when ACC power comes from the key switch , the house is joined.
The solenoid is under $20 at the RV place and Cole Hersey makes quality marine key switches with an ACC terminal.
One simple trick while at the power pole is to turn the key switch to ACC overnight every few weeks to charge the start batt , if you do not have a shore multiple output charger.
Key switch charge control is the ultimate KISS .
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I am planning on using my oil pressure switch for the fuel pump to activate the relay.
And use an on-off helm switch to be able to disconnect manually. Nice thing is I added a white handled carling breaker switch at the bottom of the row of vertical white handled carling switches and wondered what to do with it years ago, now I found a use for it.