My 2003 car has developed a parasitic battery drain. Fully charge the battery at night and by morning it's completely dead. I don't have any idea how to track down the drain so this could get expensive.
I had one of those about 45 years ago as well. I really liked it. Not sure which model it was but doesn't matter since it was stolen along with a compressor from my garage years ago. I may have to look for a replacement now that you reminded me.