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Old 07-14-2007, 11:08 AM   #1
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Question Univolt?? Saf-T-Trail??

I just bought a WFCO 9865 for my Argosy.

In pulling out what I thought was an old UniVolt I see no marking that indicate it is. It does say Saf-T-Trail TU-331.

Is this a UniVolt in disguise?? Or a replacement unit.
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Old 07-14-2007, 12:15 PM   #2
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Uni-Volt is what Airstream calls the power supplies they use-no matter who makes them or how they work. They don't need to have the word univolt on them. The main difference now is construction- the old technology ones have a big transformer and some capacitors and are therefore heavy. Newer ones use switching power supplies like a computer and are much lighter and have more sophisticated charging routines which are better for the batteries.
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Old 07-14-2007, 12:24 PM   #3
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Just wondering because I am going to sell the unit as it runs great. Just no good with AGM's
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