Battery wiring question

[GoodDayDiscGolf]

Recently bought a 93 Jayco 8SD. Everything I have read says white and red wires should be present for the battery, however I seem to have two red and a black. Has anyone seen this, or have any suggestions?

 

[us71na]

In 12 volt systems, the black is the hot. You can verify this by following the wires back from the battery. The negative wires will connect to the frame. Note: If someone has
rewired your trailer all bets are off.

For future reference, I would recommend labeling the wires once you verify their purpose.