Dual 6 volt charging?

[GPS]

Hello. I am coming from a single battery to the dual batteries. Can someone please confirm which positive and negative terminals I hook up to charge both batteries at the same time? Thanks.

[alanmalk]

Originally Posted by GPS

Hello. I am coming from a single battery to the dual batteries. Can someone please confirm which positive and negative terminals I hook up to charge both batteries at the same time? Thanks.

Your dual 6 Volt batteries are for all purposes a single 12 Volt battery in two pieces. The same wires (and terminals) you use to power the trailer are the same ones you use to charge with. The wire between the two batteries only connects to the + terminal on one and the - terminal on the other. No other wires should ever be connected to those terminals. Pretend you can't see that wire and terminals and perhaps it will make more sense.

[Centex]

Alanmalk got ya covered - a diagram to supplement ...


(source: https://www.etrailer.com/question-60431.html)

In that diagram "+12v Out" and "- To Ground" connect to the "+" and "-" cables from your WFCO power center (charger) respectively.

Both batteries will charge; best if they are close to the same state of charge when you first connect the system.

Hope that helps, Have Fun!

[oldwave]

Also make sure your connection cable between the battery negative and positive is heavy enough. I used 2/0

[John in Santa Cruz]

Originally Posted by oldwave

Also make sure your connection cable between the battery negative and positive is heavy enough. I used 2/0

it can be the same gauge as the + and - wires to the power center as its passing the same current. 00 aka 2/0 sounds like overkill to me unless you're running some really high wattage stuff like a 1500W inverter

[ghosthunter]

Here’s mine

[oldwave]

Originally Posted by John in Santa Cruz

it can be the same gauge as the + and - wires to the power center as its passing the same current. 00 aka 2/0 sounds like overkill to me unless you're running some really high wattage stuff like a 1500W inverter

I had installed an inverter , but your point is taken. I always prefer heavier wire