I have a cranking battery
(875 MC 700 CC)plus a house bank with two 115 amp hour 180 reserve deep cycle batteries. I intend to replace my 50 amp alternator
with a 75 amp from Arco. Still a bit undersized but I also have a low output wind generator
I intend to use the attached layout since the battery
switch on my boat is 15 ft (cable route
distance) from my batteries and starter (which are 2 feet apart). The existing cables
are #2 AWG which I believe are well under sized for a round trip using the standard layout. (running all cables
to the switch and then back)
I will replace the battery switch with a HD Dual combiner switch with AFD.
With the previous layout (30 ft round trip) and #2 AWG and battery the cranking battery often could not get the engine
started. The glow plugs nearly overwhelmed it. This layout will also allow me to eliminate the battery isolation diodes.
Is this going to help? Solve the problem? or waist money
Should I replace the existing #2 cable between the house batteries, switch and starter with 00 awg? or will the location of the cranking battery help the surge amperage should I have to combine both banks to start the engine
How do I use the AFD? I will use an internally regulated alternator
Arco 65108 with a lead that is marked S +sense that goes to the battery and EXC that goes to the ignition.
The boat is an Oday 39 with a Universal (Kubota) 44 hp diesel