Univolt?? Saf-T-Trail??

[Sundance]

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.

[Excella CM]

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.

[Sundance]

Just wondering because I am going to sell the unit as it runs great. Just no good with AGM's