[VAC] Re: Is My Univolt Doomed

["John R. Kleven" <jrkleven@xxxxxxxxxx>]

You can run the Univolt without a battery but you will likely have surges
and spikes in the DC output current, especially the older Univolts. Yes,
your Univolt should be connected to the battery as well as the 12 volt
system and all it is really doing is converting AC to DC and charging your
battery, but you need the battery to "stabilize" the DC current.  Can you
hear the Univolt humming?  If not make sure it is plugged in and even if it
is, unplug it and run an separate extension cord to it to rule out AC power
not getting to it from the trailer wiring.  Also hunt around for a switch
that someone might have installed to turn off the Univolt.  I installed such
a switch to avoid overcharging the battery and stop the humming while
sleeping.  If you disconnect the positive lead on the battery and do not
have any DC power, then something is wrong.
Randy