On Friday, May 27, 2016 at 2:59:25 PM UTC-7, Jon Elson wrote:

I have a digital caliper that uses an MS76 cell. Seems to have the same
problem, battery used to last well over a year, now it lasts a few weeks,
maybe. I just take it out when not in use.

There are LR44 alkaline batteries,and silver batteries in the same size
designated SR44. And there's a dozen or so pseudonyms for each of the
types. MS76 is not in the short list he

https://en.wikipedia.org/wiki/LR44_battery

Most inexpensive calipers (mine, at least) that use these cells, are not
ever truly turned OFF. Pulling the battery out during idle time is a good
plan (until you damage the battery door).

To make matters worse, battery prices range from $5 to $0.05, and might not
be indicative of quality.