Re: my wiring diagram, does this look like it will work?
...My main concern was that I saw that some people wired the main engine and trolling motors directly to their respective batteries, and wasn't really sure why. I'd like the ability to cut ALL power, and to charge my batteries independently with my 2 bank charger.
The block is rated for 150 AMPs continuous, so the multi-hundreds of AMPs when you hit the starter for a few second will probably be OK.
When the Troller and the Engine Starter are OFF, the are just as OFF as if the Perko Switch was OFF.
The Dual Bank charger will never detect any difference.
The reason for direct wiring to the Batteries is all the losses in all the extra connections and wiring getting into and out of the Perko Switch and the Distribution Block.
Going through the switch adds complexity and gains nothing.
Using your schematic you will need to set the Perko Switch to...
#1 to start the motor.
#2 when starting to troll.
#1 again to restart the motor.
If you forget to re-position the switch...
Starting on #2 reduces your limited Trolling Time.
Trolling on #1 risks damaging the Non-Deep Cycle, Starting Battery.
Never Troll in BOTH. You will have no backup battery.
With the engine and Troller wired directly to their respected batteries...
The switch can be set to #1 Indefinitely and BOTH in the Rare event the Starting Battery becomes depleted.
The risk of forgetting to position the switch is eliminated.
