Hello,

I've used load testers on car 12 V batteries before. An issue has come up at work where we'll be using CR 2032 batteries in device we issues for voting in school classes. One boss has asked if we can or should put some kind of load test on the 'new' CR20232 batteries. This would be in addition to using a voltage meter to verify the voltage.

This seems like a solution in search of a problem, but he is the boss, so I'm asking if it could be done and is there a piece if equipment I could buy to do this rather than make something myself.

Thank you!

 

Look at the various types of Lithium primary cell battery shunt impedance in their data sheets. These Li coin cells differ from other lithium primary cell types that are intended to source higher current ‘pulsed’ loads, for example 123 or CR2, intended for high current flash photography lamp pulses. As Lithium coin cells are intended for small “trickle” current loads over very long time periods, a simulated load test will short them out and deplete them quickly.

 

Yes, load testing CR2032s is possible and helpful. Use a tester like ZTS or a resistor with a multimeter to check voltage under load. No DIY needed.