Customer Ratings & Reviews

These batteries provide the best value to charge your device for an extra long time.

Excellent value and will use in my smoke Detectors. These have quite a longevity.

Great deal. Function as advertised! Like the shelf life warranty

These are one of the best batteries that I use through out my house. Get for long life in my smoke detectors.

This battery is one of the best I have ever tried, with a lot of efficiency and quality.

Good quality, as can be expected from Energizer products. Price is reasonable for small packs.

Great brand of batteries to use for you devices. Works well with your products.

Don't try generic, the money saved will result in buying 3x the amount of batteries to equal these-these are the best!

Good price. Many different brands to choose from. Very easy to find.

The battery seems to work for at least 6 months of continuel use. It could work longer but it's a replacement for a smoke detector.

They worked as expected. Other batteries I have purchased have lasted as long as I expected. I expect these to do the same thing.

I always trust Energizer batteries. They are reliable. I bought this 9V for the smoke detector at my home.

Always enjoy great products from Best Buy. Excellent work

I have used energizer before. This works as expected.

I purchased these 9 volt energizer to power a carbon monoxide detector, and so far the batteries are working very well.

9 volt vatteries for smoke detectors. Have long operation life.

good batteries that last long. Price is a little expensive but you get what you pay for.

These batteries work just as they supposed to! The packaging was easy to read and straightforward

These are hands-down the best batteries on the market… I have used everything from Duracell, to Rayovac But these are the best

That time of year to replace batteries in the smoke detectors. Energizer 9V batteries are always a reliable choice.