Wire gauge for Yami 115 to charge Battery#2

[salmonee]

I searched the topics and still have to ask a question just to double check. I want to run a wire from battery #2 (deep cycle) to my switch. I'm curious what size I need for the Yamaha 115 to charge battery #2, during switch 1+2 position. This is just to charge #2 when I make a long run from place to place. I was thinking of #6AWG or #4AWG. Run may be 10 ft one way.

 

[bruceb58]

Re: Wire gauge for Yami 115 to charge Battery#2

As long as you don't try to start your motor with the switch connecting that battery you would be fine. if you want that battery as a backup starting battery, I may wany to run a little larger. Depends on the starting current in that case.

You need the same size wire for your ground as well.

 

[salmonee]

Re: Wire gauge for Yami 115 to charge Battery#2

As long as you don't try to start your motor with the switch connecting that battery you would be fine. if you want that battery as a backup starting battery, I may wany to run a little larger. Depends on the starting current in that case.

You need the same size wire for your ground as well.

For backup starting, 4AWG isn't big enough?

 

[bruceb58]

Re: Wire gauge for Yami 115 to charge Battery#2

Probably is. I have no idea how much current an outboard starter draws.

 

[stylesabu]

Re: Wire gauge for Yami 115 to charge Battery#2

4 gauge is plenty for 115.