How did you avoid all the dinosaurs???
AVOID the dinosaurs?
They were the bulk of our business.
GM B and C bodies, Full-size Ford/Mercury/Lincoln, Full-size Mopars...without them, we'd have starved. God bless the dinosaurs. Even when the dinosaurs dowsized in '77, they were still pretty chunky compared to Euro vehicles with similar interior volume.
I've accidentally checked AC voltage because my Fluke defaults to AC, and sometimes I forget about it. What would you call excessive for AC voltage? I can't recall a number off hand.
Oh, great. Now I gotta research. My primary electrical system tester has a red LED labeled "Ripple", that glows when it's excessive.
Wild-asp guess until I can figure out the real answer: 1/4 volt AC.
[Edit]
www.picoauto.com/library/automotive-guided-tests/alternator-ac-ripple-diode-test/
https://www.picoauto.com/library/automotive-guided-tests/alternator-ac-ripple-diode-test/
This source says 500 millivolts/ 1/2 volt AC.
I dunno. 1/2 volt AC seems like a lot to me.[/Edit]
Last year my battery would die within about 3 days. I did the voltmeter test and never saw over .040A draw.
Got tired over screwing within dead batteries and this was my solution:
Harbor Freight 4A battery tender with a 7 Pin trailer connector. This time of year the truck might sit for months at a time. I keep it plugged in, and no more dead batteries.
Be VERY careful.
This is not a good solution for two reasons:
1. Cheap Communist Chinese battery chargers can fail and set fire to your car, garage, etc.
2. Having a battery that goes dead all the time, and constantly needs to be charged is hard on the battery, and hard on the alternator. Wouldn't surprise me to find that your battery has sulfated from this use; and it's almost guaranteed that you're using-up the water supply with all the charging. IF (big IF) you can access the electrolyte reservoirs, you might wanna check them for being low.
You need to have the battery load-tested. It may be that it just won't hold a charge and should be replaced.