09-22-2021, 09:10 PM
I don't yet have another battery for it. It uses a 9v.
Did that. Both leads OK and the display zeros out as it should.
Put it in DC volts mode to test a known-good and charged 18V drill battery. It briefly reads about 19 volts and then just shows 0 volts.
But that may just be the battery's BMS shutting down the battery if it thinks the voltmeter is a foreign entity. In a little while I may go outside and see if it'll read a car battery.
ANOTHER drill battery test is what started all this, so I suppose that might not be possible here. That battery shows 0 volts too, even though a simple test light will light up on it.
Bernie wrote:
Put it in the Ohms mode and jam a paper clip or needle nose where the Leads go.
Or take one lead at a time and do this. The odds of both leads being bad ..... I am betting on the black lead being bad.
Get back to us.
miley-signs003:
Did that. Both leads OK and the display zeros out as it should.
Put it in DC volts mode to test a known-good and charged 18V drill battery. It briefly reads about 19 volts and then just shows 0 volts.
But that may just be the battery's BMS shutting down the battery if it thinks the voltmeter is a foreign entity. In a little while I may go outside and see if it'll read a car battery.
ANOTHER drill battery test is what started all this, so I suppose that might not be possible here. That battery shows 0 volts too, even though a simple test light will light up on it.