Correct testing of small batteries with a multi-meter.

[scooby1]

They can.

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Oh, sorry about that. I read somewhere on an advert that they couldn't.

 

[scooby1]

The can, you just need to know how to interpret the voltage measured.

O.K. Thank you both for that. I'm learning as time goes by !

 

[scooby1]

Time to wrap this up now probably. I'm either going for the BT-168D or the BT-168PRO but I can't find out what the difference is. Can anyone tell me that please ? In any event, thank you all for the help that you have given me. I have learned a lot. The problem at my age is remembering it all !!!

 

[scooby1]

If the battery still shows near its rated voltage under load, it’s usually healthy, so I clip a small resistor across the probes to see how it behaves under a bit of stress. For tiny coin cells, I’ve compared drop-off patterns using an lr1130 battery equivalent chart, which helped me spot weak ones before they caused random device glitches.

Thank you for that information. I will look at your link.