Customer Ratings & Reviews

These are the best batteries. Long lasting and never any problems with them in my devices. This is the only brand I ever buy and will ever buy.

Smoke detectors no longer chirping! The bargain batteries installed by the builder didn't really last, but these Energizer batteries run strong for years. Silence in the house now.

Purchased battery for ceiling fan remote. Last one purchased, just like this one, lasted over 5 years and was used frequently, almost daily.

Best 9 volt batteries I ever bought, not worth passing by

Oh man you will not be disappointed with this battery, gets the job done!! If you have ever bought any batteries this purchase will top that!

They are 9 volt batteries, i wish they came in a bigger pack!

Date showed new on the box...batteries weren't about to expire. We replace our fire alarm batteries twice a year. After batteries are taken out of alarms, we put in other toys for the kids.

These batteries did everything I'd hoped they would! Always amazed that these little boxes are full of the potential to move and run things! Like magic!

Energizer has always been a stronger and longer lasting battery. Great for fire detector dependability.

Energizer quality and reliability. Got these for smoke detectors and want something reliable for this critical application.

i recently purchased this product, i use this product for my home fire detectors I would normal change every 6 months but since I have been using these I now change them every 9 months

I don't have any definitive or scientific comparison but i always feel that Energizer batteries last longer and are more consistent than other brands especially Rayovac

I would highly recommend getting Engizer Batteries for all your battery needs. They are very long lasting and can give any battery a run for the money!

The confidence I have with my smoke detectors amplifies 2.3X with these batteries powering them. Now instead of them beeping at 11pm they last all the way until 3:00am.

Needed long lasting batteries for the smoke and fire alarm and chose these.

Very good battery set for the given price. This product is very durable and very useful. I would recommend my family and friend for this product. This lasts longer in comparison to similar other products. I loved it. everyone should own this one.

All ways the best battery long battery life as al

Energizer - MAX Batteries 9V (2-Pack) Great batteries the max batteries are long lasting and dependable are great for use in fire and smoke detectors.

I am using these batteries in my custom controller and custom traffic light circuit board build. These batteries have proved reliable so far and have lasted me for some time.

It's a battery! it was chocked full of energy. I used it to power two oscillating vulcanized accelerator units, connected to a radio frequency controller.