Duracell Coppertop 9V Battery, 6 Count (Pack of 1), 9 Volt Battery with Long-lasting Power, All-Purpose Alkaline 9V Battery for Household and Office Devices

Bulk buying batteries is the way to go. Price is great and the batteries last as they normally do with what you buy in store. Stored in a nice tray and just take what you need and the box can be used for storage. Have bought a few more times.

Perfect for smoke detectors and other devices. They last a long time, no leaks, and the 6-pack is super handy. Reliable, no leaks, and great overall quality. Worth the buy for home or office use. Solid quality from Duracell as always.

Duracell batteries last a long time and aren't likely to corrode in your expensive electronics. This pack of six 9-volt batteries was available at a good price per battery. Our house has 5 smoke detectors which are "wired in" but use 9-volt batteries to keep working during power outages. When the batteries run low, the smoke detector beeps briefly every minute or so. It's so annoying, trying to figure out which one needs its battery replaced. This pack of Duracells is affordable enough (especially considering their long life) that we can replace all of the batteries at once without going broke.

I use these batteries to make sure my smoke detector so I appreciate them bye

Very simple on this one, I buy these for all my in-house smoke detectors and when they say these batteries last 5 years, take it to the bank. Worth every penny just for the knowledge that they will last and perform as designed.

It's Duracell. What's not to like? Could be cheaper.

Great 9 volt batteries!!

works great