Wiring to share battery - Go Devil and trolling motor

[BlindHog]

I want to be able to place my battery in the bow for weight distribution reasons. (Small 12ft alum vhull)

Want to still have my electric trolling motor (transom mount) and 9 HP electric start Go Devil share the battery.

Rather than running 2 sets of wires, what could I use back at the stern to switch the battery between motors? (Like the switches that allow you to change between battery A and battery B.)

As always, I am on a budget and this is a very simple lowtech rig. Thanks for any suggestions.

[whistlingwings]

Low tech...
Bolt your 3 + together bolt your 3 - together and tape them up.

Or have a look here, you can build one of these for next to nothing
http://www.boatingstore.com/us/distribution-stud-module-p13404.html

[BlindHog]

Thanks Winston,

I apologize for ignorance. So its just a straight simple hookup with all 3 bolted if I dont use that box.

I thought it would need to be switched to prevent, say, the cranking of the GD from impacting the trolling motor. But I guess if the trolling motor isnt trying to draw, nothing will happen there.

One more question: Will I get heat buildup at point of intersection when running the trolling motor? Will I get loss of voltage due to the long (16') run from battery or use battery up faster with trolling motor under this setup?

[whistlingwings]

Use #6 or #8 wire for the run. The larger the better.

With any longer run of wire you'll see a voltage drop. You will need a 50 amp circuit breaker on the trolling motor to help prevent it burning the switch out

Coat the bolted connection with Nolox or similar and it wont corrode near as fast.

[Hit-n-Miss]

If your gonna run that far use 4 gauge wire.