What gauge cable to TT battery?

plasticmaster wrote:
What gauge cable is typically connected to the 12V battery on a travel trailer? I need to get a couple of terminal connectors to hook up a battery disconnect and want to make sure I get the right size. Thanks.

Insulated wire normally has the size and type designation printed on it but you may or may not find it (depending on exposure to elements and length of wire). It's probably the same size throughout the TT and you might be able to find it on the pos. wire behind the converter/panel.

The longer the length of a section of wire, the heavier the gauge needs to be so it depends. If talking a battery disconnect then it would see the max. amount of current the TT could draw. I would say it is at least #6 AWG.

You could just disconnect the positive from battery to mini-breaker in A-frame or negative wire to the frame ground and take it to either an RV or battery shop and they can give you the correct wire size and also crimp the ring terminals for you and make up a new length(s) as needed.

Ring terminals are only as good as the crimp job done by the crimper operator. I had the pos. wire from battery to mini-breaker fall clear out of the ring terminal at the breaker when I touched it while upgrading the wiring in the A-frame.