Question: are sr44 and 357 batteries the same?
Answer: Digital calipers use a silver oxide button cell, typically the SR44 size, aka 357, 11.6mm diameter by 5.4mm high. ... They are the same size, and the same nominal voltage, and it won't damage your calipers to run them on an LR44, but you'll only get hours of runtime from an LR44 instead of days and days from an SR44.