With the main power switch turned off (no red light) there should be no power draw. In this state you can leave a fully charged battery for 5 to 7 months without any problems. If the switch is left on, red light illuminated, there is parasitic draw that will drain the battery in about 3 months.

Where does this draw come from? The mood lights’ DC/DC converter, CO/propane detectors, Autowbrake and the red light on the power switch are all sources of parasitic draw in the trailer.

Draw sources:

Power switch – 0.16 amps or 1.92 watts

Mood light regulator – 0.02 amps or 0.24 watts

Autobrake = .06 amps or 0.72 watts

Propane/CO detectors (blinking indicator lights) – 0.13 to 0.18 amps or 1.56 to 2.12 watts

TOTAL – 0.37 to 0.42 amps or 4.44 to 5.02 watts

As soon as you turn off the main power switch, all parasitic draw goes to 0.