Or use a 1K linear potentiometer with a 220R resistor in series.Dave Britten wrote: ↑Tue Sep 20, 2022 5:58 pmI 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).