Battery interconnection wire size

[Ampster]

It is possible. There are tables to look that up. It has to do with the cross section of the two 2/0 wires equaling or being greater than the cross section of the 4/0.

[Sunsun]

I was wondering about running parallel wires also. Would it be acceptable to run two 16" 2/0 wires together for the series battery interconnects as opposed to one 4/0 wire?

The reason I ask is because I already have enough of the 2/0 cables to do the job.

Chris

[Takis]

Thank you

[SunEagle]

The wire size for your batteries is usually determined by the inverter or charge controller. Based on your 4 6V Rolls wired in series for a 24V system you probably will not be charging them with more than 35amps.

But If your inverter is bigger than 3000watts you would want to use that #1/0 wire which is rated about 150amps.

So to answer your first question, it is more than appropriate for your battery wiring. And to answer your second question, I would never run parallel wires unless they are exactly the same length and terminated properly.

[Takis]

Hello friends,

I've just bought new battery bank. 4xRolls s6 fs 305 for my 24v system. C20 is 305ah.
I'm having difficulty in determining the wire size of the interconnection between batteries so ive chosen the thicker I could find, which is 50mm2 (about 1/0awg).

Two questions:
Is that wire size appropriate ?
If not, can I add custom wires in parallel so as to increase the overal size ?