New wiring and battery for electronics

[apenland01]

I am having an Ionic 125 installed as an electronics battery and new wiring from the battery to the bow, including a new fuse box for future growth. I also want a switch to turn off the electronics prior to charging, or if not needed, so what is the best switch for this task? I have a Perko switch in the bilge area for the cranking battery, which powers everything at the moment.

Is a simple toggle switch workable? Is there a better waterproof switch that isn't massive I could have at the console? And is 6 or 8 gauge wire the best choice for the rewire? Any other tips, since this job will all be done at the same time?

I am leaving everything other than electronics connected to the cranking battery for power, which is an X2 31 AGM....

[apenland01]

Found a single battery disconnect switch, which is just what I was looking for....

[H-D Dad]

Blue sea bss7181 30 amp line protection and disconnect. Good luck

[Marc Marcantonio]

This article with embedded video describes the process you are starting, and should provide some useful information:

https://storage.westernbass.com/mag_...e34/index.html

[apenland01]

Thanks, yes I ordered this one: Blue Sea 9003e E-Series Battery Switch Single Circuit On/Off

Which is what I was looking for and should be perfect for my application.

So, it will look like this using 8 gauge wire: IONIC 125AH BATTERY > BLUE SEA ON/OFF SWITCH > FUSE BOX > CONSOLE HDS LIVE 12 > BOW CARBON 16.

Everything else will be on the cranking battery, which is an X2 31 AGM from Batteries Plus.

[ilostmypistons]

You can use 10ga off the fuse panel to graphs it's future proof and easier to connect to the small plug harness wires with stepdown connectors imho

[apenland01]

You can use 10ga off the fuse panel to graphs it's future proof and easier to connect to the small plug harness wires with stepdown connectors imho

Sounds good, I know he was going to run 8 to the switch, so maybe 8 will go on down the line to the fuse box and then 10 to the units. I'll mention it to him, thanks for the tip...

[ilostmypistons]

I run a pre made heavy gauge battery cable to the switch and 8ga from there to the fuse panel.... Simplifies it a little bit.

[RazorCat]

Mentioned in another thread. Try this place if you want to buy quality tinned marine wire with custom terminations. I’ve had great success using their products. I had one termination on a 6 AWG cable that felt was substandard (IMHO). Called them, and they overnighted me a replacement.
https://www.bestboatwire.com/collections/boat

[dallasdawg]

Thanks, yes I ordered this one: Blue Sea 9003e E-Series Battery Switch Single Circuit On/Off

Which is what I was looking for and should be perfect for my application.

So, it will look like this using 8 gauge wire: IONIC 125AH BATTERY > BLUE SEA ON/OFF SWITCH > FUSE BOX > CONSOLE HDS LIVE 12 > BOW CARBON 16.

Everything else will be on the cranking battery, which is an X2 31 AGM from Batteries Plus.

For wire sizing based on wire length and power consumption, I recommend this chart: http://assets.bluesea.com/files/reso...on_chartlg.jpg

It was very helpful in my decision making for wire size for my new electronics installation.

[apenland01]

Thanks for the link to the bluesea chart! It's going in next week for install..