CR1632-3 CR1632 3V Lithium Coin Battery (Pack of 3)

Installed one of these batteries in a “Tile” (key finder) the day they arrived. It died the next day. The old battery lasted 2years. Revised review- This is embarrassing but the battery is actually just fine . The problem was the device it was installed in. My apologies for the initial review.

Ordered 6x CR1632 Panasonic batteries, which come as strips of perforated cardstock single-cell bubble packs (pretty typical for bulk resellers) scotch-taped to a piece of "thank you" paper (less typical). They appear to be genuine Panasonic batteries in unopened packaging with expiration dates in 2029, and the cells tested out at 3.3v. They worked great to fix a spotty reception problem I was having with some TPMS sensors on the back end of an RV. The only hiccup was that one of the six batteries was actually a CR2032 battery in a CR1632 package. From what I could tell this was just Panasonic mispackaging the cell and JustCalculators not noticing it when shipping. (The only way to notice is to realize that 1632s rattle around in the bubbles whereas the 2032 exactly fits the bubble and does not rattle; can't really blame them.) Given the very low cost I figured the one battery was a loss, but I contacted JustCalculators and they proved me wrong by sending out a replacement cell within a few days. That replacement cost them approximately 10% of my entire order's cost just in postage! That is excellent service and I will definitely use JustCalculators again if I need something they sell.

I like the fact that each battery is in its own container. The price was good and delivery was when expected.

I wanted name brand batteries for my car key fob. These are working fine...and I assume they will have good longevity (I just put them in). What was a little concerning is that they came in a generic mini ziploc bag and not original packaging.

Reordering shortly. Mine lasted 3.75 years in a Toyota smart key fob (Prius). Purchased in late 2019, date code on battery is "81" (2018, January). From what I've read, shelf live of a lithium coin cell is up to 10 years. (I've also seen other claims of 3 years.) Used the 3rd cell in primary key fob, will replace cell in backup key fob with one of the three cells I'll "order again" in a few months.

Best quality of battery.

I could went with a 10 pack unknown brand for cheap. But no way I could use that many batteries for many years, if they work properly. Panasonic is the brand that came with my fitness tracker, and that battery lasted a couple years. The 3 pack iis a good value. So far so good.

Would prefer to buy a built in rechargeable lithium battery powered device rather than these batteries!