CR2032 3V Lithium Battery(5pcs)-Coin & Button Cell for Apple Airtag/Car Remote/Key Fobs/Glucose Monitor/Candles/Watches/Scales/Doorbell/Intelligent Sensors/3Volt 2032 Battery Replacement

What can you really say about batteries? These CR2032s do exactly what they should – powered my Airtag and car fob straight away. Decent pack size, good value, and so far the life seems solid. Nothing flashy, just reliable power at a fair price.

Exactly as described, battery replacement compatible with my car key fob, so far still going strong, speed is as good as manufacturer supplied, would purchase again without hesitation.

Very good value for money and they work as expected!!

As the title says, good for what I need it for (Apple AirTag!) I only need one so now I have 4 spare, but hoping the battery life means I won’t need to use them any time soon

Batteries Good value

Brilliant

Exactly as described would highly recommend

I think I had a faulty batch as every apple tracker battery keeps saying battery low. I’m changing them more than twice a week sometimes. I’ve now had to try a different brand.

Bought for key fob and kids toys. These don’t last. Key fob works only a few weeks per battery

As all sorts of electronic devices get smaller, use SMD components and generally require less power, their batteries tend to follow that trend. Of all the coin style batteries required for my use, the venerable CR2032 seems to be the most prevalent. It started with computer 'CMOS' batteries and, since, has spread to keychain flashlights, alarm sensors and who knows what. So, having a supply on hand is a good thing. Finding 30 of them at a reasonable price makes it rather easy to do. These have no expiration or best by date which is disappointing. Their resting voltage upon delivery was 3.33 volts. Seems normal for 3-volt Lithium batteries. They came in six retail packs of 5 batteries each. I deducted one star for the expiration date issue because, without one, supposedly "new" batteries can be 10 days old or 10 years old. Leaving the purchaser in the dark . . . Perhaps, literally.

It's not proven with the longevity of these batteries are, but generally lithium batteries should last a very long time upwards of 10 years. All the batteries came voltages and I've put them to use and will report back if any issues arise

These appear to function just as well as the name brand batteries at the local stores, yet cost far, far less per battery. If you know you're going to eventually use these, buying in bulk like this is a vastly better deal than buying two at a time locally.