Batteries - More Questions

[rpwillia]

About 5 feet

Four CG2 batteries installed. Braces installed; they are not going to move. All wiring hooked up.

Next task is installing the pro-mariner charger. Anyone know how many feet of wire from the OEM charger location to the battery box for the charger temperature sensor?
What gauge wire for that run.

The wire that comes with the charger is pretty thin so any stranded wire greater than 24 gauge should be fine. 5-6' will do it.

 

[KZW]

Picture of battery installation.

 

[JK_Boston_Catalina310]

Picture of battery installation.

Very nice. Cleaning looking install with the correct orientation. Did you go with one big bank or two?

 

[JK_Boston_Catalina310]

The wire that comes with the charger is pretty thin so any stranded wire greater than 24 gauge should be fine. 5-6' will do it.

According to the Blue Sea System app the correct size for a 40 amp charger is 4awg.

 

[Charles Erwin]

4AWG is probably right for the 12v DC + and - charging cables. The DC ground can be one size smaller.

A far smaller gauge works for the temp sensor but 24 ga. would seem overly thin. The install manual should tell you the answer.

Charles

 

[KZW]

Very nice. Cleaning looking install with the correct orientation. Did you go with one big bank or two?

Two banks. However, next summer I may move the + bus bars and put in a starter battery and connect the existing two banks in parallel. Or, I may just go with a single bank and be done with it. No decision yet.

I went with a 20 amp charger. It is under-kill, but I want to charge the batteries slowly.