Top photo......where are the larger positive/negative cables?
Find cable that is connected to trailer frame..that is negative cable(ground).
Connect other cable to positive battery post.......then connect ground cable to negative battery post
Middle photo.....black and white wires in gray/blue jacket come from/to converter.
Connect black to positive on battery
Connect white to negative on battery
They are for 'charging' of battery from converter when on AC shore power
Bottom photo....converter
Left side top---that is the AC input
Right side.....3 position switch 'Converter' (when connected to AC power it will supply DC power) 'OFF' and 'Battery' (no AC power--flip switch and battery supplies DC power)
Also when in 'converter' and AC power plugged in it will charge battery....but it is a very slow, more like a trickle charger
