25 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

This is way more than enough for my use. Long shelf life but it will expire before I use them all. Usually use them in my key fobs and works as good as the more expensive brands. Maybe almost 10 years worth for me since I'm just using it in my key fobs.

I picked up a pack of these mostly to have handy for refurbishing surplus computers. The value per battery is crazy compared to pretty much anywhere else. I'm not sure I would want to use these in something that has any significant power demand... but anything with negligible requirements that just needs to save settings- this is great!

Writing this review several months after purchase as I bought these to replace the batteries for multiple AirTags and a weight scale. Noticeably the battery life isn't as long as I expected, especially for the weight scale, but it does last 2-3 months for the AirTags. The quantity of batteries is what makes this a good deal.

Well sealed. Works great

Price point you can't beat. Highly recommend, especially if you own Gun reticle reflex sights...... I'm very happy!

These didn’t last very long. My mom started using her 2nd set of keys in July, only a few days after I got the batteries and replaced the battery in her fob. About 2 weeks ago she started having trouble with her fob being recognized by her car. That’s only 3 months! I thought there’s no way this can be the battery, well my dad took her car to the dealer today and after $10 later for a new battery problem solved! That’s horrible. And what’s worse she was out running errands and she had trouble getting her car started because of the crappy battery I bought. Do NOT buy these!

Great value, batteries last

Great value, nice to have a supply when you want one.