Well here is what I ended up doing... To find a known voltage value, I went to Duracell's web site and found the technical product information section
https://www.duracell.com/en-us/techlibrary/product-technical-data-sheets/ and selected the Quantum AA battery and found the voltage to be listed at about 1.65v; knowing this, I purchased a multipack and selected 10 for testing and averaged the data. I found my meter showed apx 1.72v, and now with a benchmark, all I needed to do was adjust the internal potentiometer. Additionally, having a known benchmark readily available (and cheap), I can quickly verify accuracy at anytime in the future.
Problem solved.
What I learned is don't assume your meter is right, check it.
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