15 Pack CR2032 Batteries - [Extended Life] Airtag Battery 220mAh 3 Volt Lithium Replacement Airbag 3v C2032 Watch Battery Coin Round Button Cell - Key FOB - Child Resistant | 5 Year Guarantee

These are great batteries that performed just as good as name brand batteries, but they are a fraction of the price. 5 stars.

Works well and the price is right

There is no reason on earth to use a "BRAND NAME" Coin Battery when you can get a Multi-Pack that will last you for years. An exclusion would be if that battery powered some life-saving device, but most of us are going to use a 2032 in a Key Fob, a welding helmet, or other noncritical application. At this price, you can change them out every other month! Good value and long-lasting battery

I mainly bought these as batteries for my thermometer, which takes four at a time. I've ordered them about three times already and they work great. They're packaged conveniently for easy storage, and the performance seems to be no different from major companies' batteries.

Great

Used this for my BMW 7 series key fob, lasts pretty long and slots right in. Definitely great price for this bundle.

Very low battery life./ low voltage. Most of these last a day or two in a device that should last months. Bought several packs for the price, but not worth the hassle.

They power it perfectly and my tuner runs through juice since I like to change tuning mid jam session meaning it is always running and recording chromatic pitches. One can tell the tuner is low on juice as the LED back light becomes more dimmer and it becomes less accurate. But these batteries last a long time, I don't have exact duration estimate but I still got plenty of them from a single package that are still in my guitar case and I play every day. I think they might also be compatible with computer motherboards if you know computer parts (they use one) but don't take my word on that.