How to assess coin cell quality?

General discussion about calculators, SwissMicros or otherwise
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ijabbott
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Re: How to assess coin cell quality?

Post by ijabbott »

Dave Britten wrote:
Tue Sep 20, 2022 5:58 pm
I use one of these resistance substitution boxes for testing coin cells:

https://www.amazon.com/Elenco-Resistor- ... B00R6SOXLG

Clip it to both leads of your multimeter to create a load on the battery, and see how the voltage fares in the 220-1000 Ohm range (3-14 mA current).
Or use a 1K linear potentiometer with a 220R resistor in series.
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