Wire Gauge for Two 6 Volt Batteries in Series and Battery Box

Updated 08/05/2020 | Published 08/04/2020

Products Featured in This Question

10 Gauge Wire - Blue Primary - Per Foot

(102)

$1.75

TorkLift PowerArmor Locking Battery Box - 6V and 12V Batteries - Diamond Plate Aluminum

(256)

$421.47

Question:

What size, thickness, or gauge wire is needed to connect two GC2 batteries in series? I am swapping out the single Group 24 12v battery on my 21foot travel trailer and replacing it with 2 GC2 6v batteries that I want to wire in series. I will have them in a Camco Dual Battery Box.

asked by: Jason S

Expert Reply:

When wiring two 6-volt batteries in series you can use 10 Gauge Primary Wire # 10-1-1.

We sell this by the foot so you will just need to order whatever length you need for your application. And for a battery box we do not offer a Camco dual battery box but we do have another option which is the outstanding TorkLift PowerArmor Locking Battery Box - 6V and 12V Batteries # TLA7708R.

I have added a link to a video review as well.

expert reply by: Kyle S