On Sat, 3 Oct 2020 20:50:52 +0100, Tim Lamb wrote:

In message , Paul
writes
Snip

Some cells are knackered in the package. I was sold a
CR2032 at the mall, which was dead about a day after I
got it, which meant the product had been sitting in
that store for 10+ years. Or, it was a counterfeit
of a very inferior nature. No amount of fingerprints
would be responsible for that. Another cell purchased
elsewhere, behaved properly. It's not like I had
premature failures one after another, just the one
cell that was knackered, out of the package.

Some battery powered devices have a constant battery drain despite being
*switched off*.

My two are a pistol grip laser thermometer and a digital vernier gauge.
Left connected, 4 weeks battery life:-(

Verniers are bad for that. I have an Aldidl one that takes a an LR4 and
would last a few months at most. Although I didn't 'need' it I got another
one from Aldidl that takes a CR2032, thinking that the bigger cell should
last a lot longer; it doesn't!

BTW, I've a vernier caliper that doesn't take a cell but I can no longer
read it very well. If someone wants it, drop me an e-mail - free to a good
home where it'll be used.
--
Peter.
The gods will stay away
whilst religions hold sway