Costco: 2032 Lithium Batteries

Amazon 10 for $5.75 (Sony)   https://smile.amazon.com/Sony-CR2032-Lithium-Batteries-Pack/dp/B0042KOJRE/ref=sxts_sxwds-bia-wc-nc-drs1_0?crid=12CY6U1HYO7JS&cv_ct_cx=2032+battery&dchild=1&keywords=2032+battery&pd_rd_i=B0042KOJRE&pd_rd_r=65702750-47ee-47aa-b052-ca9af629e03a&pd_rd_w=k1n6o&pd_rd_wg=sZrkK&pf_rd_p=a64002b9-9c26-4361-b8a1-b0f5a4835670&pf_rd_r=24ZNR5934B1EJ5J739WT&psc=1&qid=1611266616&sprefix=2032%2Caps%2C195&sr=1-1-38d0a374-3318-4625-ad92-b6761a63ecf6

Lots of counterfeit batteries out there that are hard to tell the difference from the actual name brand batteries.  Duracell CR2032 batteries are about a  buck a piece, sometimes more, so those offered at a much lower price are suspect. A new CR2032 battery should measure at least 3.2 volts with no load when new.

https://www.microbattery.com/counterfeit-sony-watch-coin-batteries

https://www.eevblog.com/forum/dodgy-technology/crap-energizer-2032-batteries-from-amazon/

Dunno that I've received any counterfeit batteries so far, but it is nice to be able to see date codes when buying. On a few occasions of buying batteries online I've received a bit older stock. Not expired, but not fresh off the presses either.

I only posted my Costco purchase as an alternative for customers out there. Amazon and other online sources have very good buys and I am sure their products are sound. With my security system, though, a bit more cautious.

That wasn't meant to be anything against Costco. We are Executive members. I only have one complaint against Costco and it has nothing directly to do with the merchandise, per se.

Bought ~$800 item online but ended up deciding to return it due to a quality problem. Happens, no big deal, they have good return policy. But, due to packaging and weight, I decided rather than ship it back I would return it to a brick and mortar Costco location while making a business trip. At the store they processed the return efficiently and professionally. However, the problem came to the refund credit. Since I bought the item online using a Mastercard but the stores only accept Visa, they had no way to give me credit back to my Mastercard. Instead, I had to get a Costco Shop Card for the full amount of the refund.

It's not like that broke us, but the plan had been to take the refund to get a similar item but different brand not available through Costco. So, now I had to pay the $800 back to the credit card to not carry that balance and then still buy the item elsewhere. All while Costco effectively holds my money captive.

And, yes, I made formal requests in writing to Costco corporate explaining the situation but in the end they said sorry, nothing we can do to fix that.