[DoctorOetker]

Would you happen to know the current draws for the older and newer designs? I would like to check if mine are worth replacing (since I dutifully remove and store the battery in the designated holder in the case I can't rely on durability comparisons because it would depend on usage patterns).

[moreati]

I don't know the current draw of either. I don't know if newer designs are better, I only have one I bought around 10-15 years ago. For mine a bettery left in the calipers depletes within a few months, without use.