What size cable betwee 6V batteries?

I am going with 2AWG cables everywhere with my battery upgrade.. My cables will be ANCOR MARINE BRAND cable...





My cable color is going to RED between the two 6VDC GC2 series batteries and I am going to use RED and BLACK slip-on ADHESIVE SHRINK TUBING to identify the POSITIVE or NEGATIVE TERMINAL connections... These cable lengths will be 6-inch or 12-inch lengths depending what I find available pre-made (AMAZON).

The ANCOR MARINE GRADE cables has several groups of very fine cables threads making it very easy to work with.


Roy Ken

pianotuna wrote:
The same size or larger than the cables that feed the RV or any inverter.

X2

On a 12" run you can get away with murder. 2AWG would pass 1000 amps. I much prefer supple cable and flag type terminals that leave cell caps free and wide open. I paint my series connections green for ergonomic simplicity.

The same size or larger than the cables that feed the RV or any inverter.

What if he has a 100 amp WFCO converter? Or 1000 watt inverter?

I agree with same size as largest cable on other terminals.

2oldman wrote:
that depends on the size of the cables feeding the RV.

No it doesn't. It's going 6 inches and voltage drop is practically nothing. 8 ga is plenty. I noticed my Progressive Dynamics 4600 series uses 8 ga to the fuse board but to the batteries is what matters. Bigger the better on a longer run.

The same size as the positive and negative cables going to the RV. All three will carry the same amperage.

When I switched from two 12 volt batteries in parallel to two 6 volt batteries in series, I used one of the two short cables that had previously connected the two 12 volt batteries together.

If you have an inverter you'd want it at least as large as the wires going to the inverter. I have 2 gauge between my batteries.

I used some #4 that I cut from a pair of jumper cables. Made my own lengths and the cost was much lower than buying them.

B.O.

that depends on the size of the cables feeding the RV.