I bought lithium AA Energizer via an Amazon 'seller'. I was tracking the length of time they lasted in the device vs alkaline (yes device manual said lithiums were OK to be used). They were not lasting nearly as long as others reported. I contacted Energizer and it was painful to get them replaced. Only replace what you could take a picture of remaining one, even with lot number, etc. Finally, a coupon was provided and replacement ones at Target were excellent and vastly superior in lasting. My theory was batteries were stored/transported in heat.Yes, local Walmart would be a good choice. I have not had an issue with buying a new "old" battery regardless of where I bought it.
We used to change them every now and again in years past but I suspect the current CMOS chips are pretty efficient these days and use little juice. And we did clean them with propanol (lab grade) and handle them carefully with rags to prevent finger oil from getting on them.I did not see a best if used by date on the 2 pkg's I have but at least it says to not eat them.
Keep a 2 pack in the glove box- they have a long shelf-life if not used --
these 2032 batteries are the same as most computer motherboards and when did you last change that battery ?