Well today I just validated that Duracell vs. Energizer in my devices that uses coin cells:
Samsung Button (2450)
Ecobee Room Sensors (2032)
Door Sensors (2032)
I ordered a 6 pack of both Duracell and Energizer for both battery types from Amazon. The packaging for the Energizer was interesting individual's in a box the 2450's were Red labeled and the 2032's were blue labeled. Duracell was on a cardboard back peg package.
I have two buttons that both went out of battery within days of each other. And both would not power on with the 2450's from Energizer. But with the Duracell powered on just fine. So there is something in the Energizer that the buttons don't like or the Red labels aren't for the us market.
I also did two door sensors one with Energizer and the other with Duracell Both sensors are from Simply Safe. Within 48 hours the Energizer one was reporting low battery again while the Duracell worked as normal. Replace the Energizer with the Duracell and that sensor has been happy for a few days.
As for the Ecobee sensor we shall see I have the 2032 from Energizer right now and they don't report battery levels but will alert when low.
Now poking around it someone said the Red labeled Energizer is for other markets outside of the USA. Don't know if that is true. But what I did find interesting is that the Energizer coin cell for the 4250 is like a few decimal points smaller in diameter than the Duracell so are they trying to save money by being just a bit out of spec not sure.
But as I said I am no longer gong to buy the Energizer brand, can't trust them. I do whish they stamped the date of manufacturing on the batteries so I could say it was a apples to apples test. But on the package from Duracell they had Apr 2034 as the expiration date. The energizer ones had a best by date of 03/2033.
I cant say if this is your issue or not but I have had issues in car key remotes with the coated coin cell batteries (the kind that have the bitter flavoring so kids won't eat them) - maybe try cleaning it with some alcohol ?
Yep. Energizer just recently started doing this to their coin cells too - for a while there. that feature seemed to be a Duracell exclusive. If it's there, that coating needs to get removed however you can - or it'll almost certainly be a problem.
To OP, I've forever used Energizer lithium coin cells exclusively, and I've always been very happy with their performance.
There was a specific generation of SmartThings motion sensor (3rd?) that specified Panasonic or Duracall batteries only. Conspiracy theorists thought this was because ST or Samsung (can't remember if they bought them yet) got a kickback for saying so, but it was really for practical reasons: those two brands had perfectly vertical sides, not tapered, and they were the only ones known to reliably make contact with both terminals in the battery compartment. What the actual spec for the cell design says, if there is such a standard beyond just convention, I don't know; but I do know that this was indeed the reason they didn't work. (You could sort of finagle it into working if you bent one of the terminals a bit, but that wasn't always reliable for me.)
All this to say: I wouldn't be surprised if something like that was going on here, and once again, Duracell with its more cylindrical design might be winning with your devices for that reason. Maybe Panasonic would, too.
The other thing that might be happening these days is that some cells are coated with a bitterant, which I think is relatively new. If your battery compartment has contact points that happen to be where this bitterant was applied, it could interfere with the connection. Interestingly, though, Duracell is one of the more popular brands that is doing that now, so if that is the one working for you, I doubt this is the cause -- but it certainly could be for other issues, again, depending on the contact points.
Been using these Panasonics for quite a while now, no issues noted. They are a son of a bitch to get out of the package, even w/scissors...no kid is ever going to eat one of these.
Since these came from Amazon, I'll mentioned that some people swear that Amazon does not separate stock by supplier, only by SKU. So if someone is selling counterfeit batteries, you have a chance of getting either legit or fake, whether you are buying legit or fake.
I've never seen a shred of evidence produced indicating this is true.
I've never seen a shred of evidence produced indicating this is false.
I try to purchase Panasonic lithium coin cells most of the time. I have also used cells by the Chinese company LiCB, but they do not seem to last as long as the Panasonics.
Coincidentally, I find the same to be true regarding whether or not when I was 7 I snuck into the kitchen after my parents went to bed, and ate the last piece of my father's birthday cake.
I've exclusively used Panasonic for lithium (both coin and cylindrical) and alkaline batteries for several years and have nothing bad to say about them. (And the alkalines don't leak, which is somehow a notable achievement compared to other brands.)
I buy them from Mouser, so I feel confident they are authentic. And Mouser is next day ground delivery for me at a better price than any other store and brand I trust. I know several people here have talked about store x and brand y, but I like throwing a sensor with a fresh battery in a non-easy spot and not worrying about whether I'll be fishing it out in a month or two.
Thanks everyone for the replies. Yes I forgot about the coating that make the batteries bitter so the kids wont swallow them. I am still trying to find out why the packaging for Energizer for 2450's are red where I always see blue packaging on the description and when I am at say Walgreens or Home Depot they are all blue there. Maybe I am just not looking close enough.
And I agree that Amazon has had counterfeit products. The Sandisk and Kingston storage counterfeits from China come to mind. Als the dumping of inventory from some warehouse close to expiration dates has been seen.
I don't know who to trust anymore. I am not going to pay the 30% markup at Walgreens for a battery that may have been sitting there for 4 years along with Home Depot. Amazon was the only ones that had the coin cells in a package of 6 or more since it seems like door and window sensors all seem to go out in the same week.
This from the listing I posted above along w/"Free returns" gives me some peace of mind. I'm assuming Amazon would not intentionally sell counterfeit goods...maybe that's the best you can hope for these days on Amazon. This specific listing is also included in the Panasonic store on Amazon, and I would think/hope Panasonic also promote counterfeits. But then, I still believe in Ents and Elves.
But - as @ymerj properly warned us, these are the left-handed version so YMMV...
Must be a really older design because I have been receiving the Energizers in blue for many years now. Which tells me the red packs are "old" but coin cells are supposed to have alike a 10 year shelf life. Per ChatGPT:
Typical Shelf Life
• Standard lithium coin cells (e.g., CR2032): 5 to 10 years depending on brand and storage conditions.
• Premium brands like Panasonic or Energizer: Often rated for a 10-year shelf life under ideal conditions.
This is a curiosity question only. Are they stacked like a roll of coins, or are they protected from contacting each other during shipping and storage?
I am interested in general in purchasing stuff that ships in minimal/reduced packaging.
Does anyone get the Panasonic or similar quality batteries from a vendor that ships them more in "bulk" style? I don't want to buy 100 at a time but 50 or so at a time feels like a more reasonable amount for my uses.
This specific listing is also included in the Panasonic store on Amazon, and I would think/hope Panasonic also promote counterfeits. But then, I still believe in Ents and Elves. 
Typical Shelf Life
