Forum Discussion
westend
Nov 12, 2013Explorer
Interesting discussion about old chargers. In my rig I have a 1971 Progressive Industries Model #708 converter. It's continuous rating is 30 amps. It was offered as just a 12V DC supply or as a battery charger with an equipped PC board that sockets into the front of the converter.
The manual says that the charging circuit board senses temp difference in the converter's electronics and delivers between 12.2v-15v.
I wasn't thinking about keeping his converter, long time, but it's built so darn well and seems to be treating my batteries good. It has one big piece of iron for a transformer and a large heatsink for the rectifiers. I don't know if Progressive Ind. was ahead of it's time or if others were built to a lesser standard. Maybe I got lucky.:)
I have it switched off for the Winter, the solar is handling the float charge.
The manual says that the charging circuit board senses temp difference in the converter's electronics and delivers between 12.2v-15v.
I wasn't thinking about keeping his converter, long time, but it's built so darn well and seems to be treating my batteries good. It has one big piece of iron for a transformer and a large heatsink for the rectifiers. I don't know if Progressive Ind. was ahead of it's time or if others were built to a lesser standard. Maybe I got lucky.:)
I have it switched off for the Winter, the solar is handling the float charge.
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