Squirrels have fuzzy tails.
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Anyway the point of the story is, I tested the new battery with my dmm when i got it and it was 1.55vdc, and two days later my clock was dead and the voltage on the battery was less than 1v...approx 0.6vwhat the hell? that was a $5 battery!!Can anyone tell me where things went wrong?
Either measure voltage and current with a 1.5V supply (could be from an AA, just make a dummy for the button cell).Or, measure the load with an Ohmmeter (plus to where the plus pole of the cell goes inside the batt. compartment).
This is it
Quote from: Soeren on March 23, 2009, 05:44:32 PM Either measure voltage and current with a 1.5V supply (could be from an AA, just make a dummy for the button cell).Or, measure the load with an Ohmmeter (plus to where the plus pole of the cell goes inside the batt. compartment).Can you explain this a little further?
measuring ohms at the battery connection points it measured 1.922
This battery is weird (energizer 389)After I had originally taken it out when the clock died it measured at around .45v down from 1.55v. I let it sit out for a couple days and measured it again and it was back up to about 1.49v. So i put it back in and the clock worked again. Tonight when i looked the clock was dead again and the battery is reading 0.44v.I dont get it
Hook up a multimeter on current setting to the battery to see if its really a short.My guess its a el-cheapo 'made in China' clock.
The DMM set on 20Kohm, the reading on the DMM was 2.37. What does that tell me?