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Why Won't My Flagstaff Camping Trailer Work On Batteries?

by Gregg
(Duluth, MN)

I have a 2003 flagstaff tent camper and the battery will not power the camper when the 110 volt is unplugged all power go out. The battery is fully charged and charges when the camper is plugged in. Is the inverter bad or is there a bad connection? Can you help?



ANSWER: Greetings Gregg thanks for submitting your question on our Ask An RV Question Page.

When you unplug your trailer from 120 volt electricity, your batteries will only operate the water pump, 12 volt lights, etc. The batteries will not provide 120 volt electricity unless your trailer is equipped with a 12 Volt Inverter. that converts 12 volt DC power to 120 Volt AC power. Traditionally inverters do not come as standard equipment on a tent trailer. So you need to confirm that your trailer is equipped with one.

If you are not getting any 12 volt power when not plugged into electric, then you have a problem with either the batteries or wiring. I would suggest looking for loose wiring going to and leaving the batteries. I would look for any blown fuses. I would also have the batteries checked even though you say they are getting a charge; you need to confirm that they are accepting and holding the charge.

You may end up having to take it in and have it looked at by a qualified RV Technician.

Hopefully the above information has been helpful to you.

Do you have any suggestions or comments on this topic? You can add them to this page by clicking on the "Click Here To Post Comments" link located near the bottom of this page.

Happy RVing

RVing Al

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Camper Battery Power
by: HGRR

My camper used to lose 12 DC volt power when unplugged from the 110 volt AC supply. The problem turned out to be trash (dust, spider web?)in the contacts of the relay in the power supply/charger that switches from power supply to battery.

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