POWEROWL High Capacity CR2450 Battery (15-Pack) 3v Lithium Batteries, 10 Years Leak-Free, Long Lasting CR 2450

I use these for tea lights in a setting at work that needs a long lasting battery. These are remarkable in that they last longer than any other battery I've used, including famous big name brands. These are exactly the correct size and construction based on the calipers I keep at my desk. (Doesn't everybody have calipers at their desk?) Because the size is as expected, they slide right into place with no muss or fuss and that fit makes them compatible with several brands of tea lights I have on hand -- completely as expected. For what I paid these were a phenomenal value, and I'm hoping I will always be able to get these as my new go-to CR2032 battery. 5/5 stars, charged and ready!

work OK but life expectancy from previous order of same batteries was spotty. Nevertheless the price was right.

If you're into PC building like we are, you know there is nothing more annoying than your CMOS battery dying right when you're trying to troubleshoot a BIOS issue. We picked up this Powerowl 20-pack, so we’d never have to make a midnight run to the drugstore for a single, overpriced battery again. These are 3V lithium and, honestly, they perform just as well as the big-name brands we used to buy. We’ve already swapped them into our garage door opener and our Apple AirTags, and they’ve been going strong for months with zero issues. The "leak-free" guarantee is a huge deal for us too — especially when we’re putting them into expensive electronics like a motherboard or a high-end digital scale. The packaging is great because they come in individual blister packs, so you don't have a bunch of loose batteries rolling around in your junk drawer. It’s a total "set it and forget it" purchase. For a student on a budget, getting 20 of these for what you’d normally pay for a 4-pack at the grocery store is a massive win. If you have a lot of small tech around the house, this is the most cost-effective way to keep everything powered up.

Okay batteries. Really bad packaging. So hard to open. 3 of the batteries were dead or died quickly which was disappointing. We used this to make STEM flashlights so I used all but 3 batteries since they weren’t working and it wasn’t helpful trying to open the package when I was in a rush.

Perfect batteries to always keep in stock at home. They work in my car keys! I have kids and 4 cars that use this battery. Nice to have on hand.

Bought these for several devices around the house like key fobs, remotes, and small electronics. They work exactly as expected and come in a large pack, which is nice to have on hand when something dies unexpectedly. Great value for the price and no issues so far.

The battery life of these are great despite the fact that they’re so cheap for 15 of them. So you doesn’t get your moneys worth out of it for not very much at all. They do fit into my O site SE green micro dot optic on my gun. The reason why I like this specific brand is because it allows you to buy so many at one time as you won’t need optic batteries for I’d say maybe four years or five years if long as long as you don’t shoot that often at the firing range but I’m about to start firing him more often at the firing range so I’d say the pack would last me more around a year. Covered

3 stars. I got these in 2023, swapped like 2 batteries, I forget. Fine. Now, 2026, I decided it was probably time to swap all my motion sensor batteries (some were throwing low battery alerts). After replacing all the batteries with these, the devices continued throwing low battery alerts and half the ones with "new" batteries have been offline periodically since. The title says, 10 years. Well, that's only 3 years sitting in a temperature controlled, dry storage location.