Source: Karen S. Freeman / iMore
I've been using my AirTags for over a year now. I finally got a notification on my iPhone that the battery was low on several of them, and I needed to replace them. No problem — replacement batteries are inexpensive and easy to find. In fact, I already have plenty of them on hand. Or so I thought!
Apple's AirTags are one of my favorite new products; they are easy to use and work incredibly well for tracking just about anything. The included battery in the AirTag is supposed to last about a year, and in my personal experience, they last even a bit longer than that. At any rate, I finally got the notification that two of my batteries needed replacing. I know how to replace the AirTag battery, so I went to my battery keeper and pulled out some brand new Duracell CR2032 lithium 3V coin batteries and proceeded to swap them out. I didn't hear the expected "beep" to let me know that the new battery was working. Indeed, when I checked the Find My app, I saw that the new batteries appeared to be dead. So what was the issue? As it turns out, Apple had issued a battery warning to customers:
"CR2032 batteries with bitterant coatings might not work with AirTag or other battery-powered products, depending on the alignment of the coating in relation to the battery contacts."
Source: Karen S. Freeman / iMore
I checked my battery packaging, and sure enough, I noticed a mention of "bitter taste" (bitterant coating) for safety reasons: to prevent babies from swallowing the batteries. This is great for safety purposes, but unfortunately, the bitterant coating on the battery prevents it from working in the AirTags. I went to Amazon and ordered more CR2032 batteries, this time checking carefully for any mention of bitter or bitterant coating. The packing doesn't say there isn't, specifically, but the ones I purchased did not have the bitter coating. I popped them in, and they work great. Just be sure to store the batteries out of the reach of young children.
And if you'd like to venture out of Apple's ecosystem and track down an alternative tracker, there are a ton of other best Bluetooth trackers available on the market.
We may earn a commission for purchases using our links. Learn more.

Leaked iPhone 14 cases show Pro models' insanely huge camera bumps
Apple is roundly expected to announce a new iPhone 14 lineup later this year and a new leak claims to show some of the cases that are being built for those new handsets. And as we've been expecting, they show the iPhone 14 Pro and iPhone 14 Pro Max devices will both come with massive camera bumps.

'The Big Short' investor Michael Burry has $36 million bet against Apple
Infamous investor Michael Berry has bet against the fortunes of Apple's share price to the tune of 206,000 shares.

Beta testers will likely wait until July to get their hands on iOS 16
If all goes according to previous years we can expect Apple to release the first developer beta of iOS 16 on June 6, the same day that it will be announced. That's the date of the WWDC22 opening keynote but those who are part of the public beta program look set to be waiting a little while longer.

Make your wallet unlosable with a specialized AirTag wallet
Do you have a habit of leaving your wallet inside coffee shops and Ubers? Or have you had a traumatic stolen wallet experience? If so, an AirTag wallet may just be what you need.