I got had original converter. PO told me the converter was shot and would not charge on board battery. Since the wall mount for it had collapsed and it was dropped down on the pump I pulled it out and tore out the original mounting which by no means was designed well enough to hold such a heavy unit.
I replaced it with a IOTA Power Converter/Charger and a Battery Minder and I could not be more pleased. Every time I walk in trailer I look at minder and it is sitting there at 13.4-13.7 volts warm or cold as I leave AS plugged into shore line all the time.
I have a buddy who is electronic tech have a look at old unit and he calls me and tells me he drilled out the rivets and started to check it out and found data on inside of unit it was 11.2V and this is exactly what it puts out. He explained in order to charge a battery the voltage must be slightly higher than battery is rated for which normally 13.5-13.8V and thusly a charger needs to be circa 15 volts. He also said the data on inside said it was a 70 amp unit.
I checked my small NAPA trickle charger I have on backhoe to keep up dual batteries and it is 15.2V and does nicely.
I was just wondering why AS did not install a higher volt unit so battery would charge? I guess I will just use this as a power supply for ham radio as this is useless for the AS. One thing for sure, it will not go back in as the IOTA is great and I have it mounted to a bulk head on other end of kitchen counter workspace up out of the way when I rebuilt underside of storage area and redecked it with 3/8" plywood and 2X2 reinforcing supported in middle by 2X4 pocket holed to deck in several places. I weigh 230 and now that shelf will hold me while I do push ups on it and doubled my undercounter space which now goes all the way to the hull wall.