09-22-2021, 10:12 PM
Bernie wrote:
I would try an AA 1.5 volt over the 400 amp car battery.
Even an A/C wall socket will shake you loose but a D/C Car battery is not something I would do with a FAULTY meter.
:oldfogey:
Good point. And besides, if this thing can't read down to a few volts it's no good to me anyway.
deckeda wrote:
But that may just be the battery's BMS shutting down the battery if it thinks the voltmeter is a foreign entity. .
That was the issue. This meter can't test batteries with a BMS controlling them. I grabbed a fresh AA Duracell and it reads 1.58v just fine.
"IT'S FIXED"
Thanks all. I guess the fancy probe types will have to wait another day.