Red wire, black wire and white wires
I am hooking my battery to my trailer. I have 2 sets of cables. One has a white and a black wire. The other has a white and red wire. Which is negative and positive? I don't now, and when I hooked the...
Forum Discussion
Bobbo wrote:Boon Docker wrote:
Set your multimeter to ohms. Ground one probe to the frame then touch the other probe to each wire separately.
A reading of zero to 1 ohm means that wire is negative.
Be sure that no wires are connected to the battery's positive terminal. Touch a hot wire like this and you will damage the meter.
I know how to use one. I was hoping that it would have been simple as white is always ... The idea of the ohm test on the frame and wires will help.
