Customer Ratings & Reviews

These batteries last a long time in my Smoke Detectors and other such devices. No issues with corrosion! I trust Energizer Max Batteries to give me service.

I used this in my CO2 detector, and I think it lasted over 2 years.

You can always count on Energizer batteries. They’re the best.

These are really good batteries and last very long

Great Batteries. Strong lasting power. I would disclose what these batteries powered, but my mom reads these.

I've had the best performance from Energizer batteries over the years, so they are what I use exclusively unless I can't get them for some reason. And these came at a great price with my Best Buy membership!

This little pink bunny is a work horse and I love these batteries. When you compare the cost of these named to no named it's a no brainer. I must say though that Duracell is a real close 2nd!!!

Great 9V for smoke detector or garage door opener that last a long time.

I was so glad to find this two package of Energizer 9V2 batteries at Best Buy. I needed them to use at my home. I have used Energizer batteries in the past and have been very pleased.

I ordered Batteries on line. The process was quite easy. I actually had them delivered to my home and wanted to see how that process was well. They were supposed to be here on a certain day and they were not. It ended up being like maybe four days when it was actually delivered!! I actually ordered something now, but I’m picking it up in the store!

We've all seen the bunny commercials, touting Energizer's longest lasting batteries. Hyperbole aside, they are some of the best batteries on the market for life span. You do pay a bit more than other brands (except the "Copper Tops") but you get more time without having to change them out. The downside is that you can purchase nearly twice the Rayovac or Amazon brand batteries for the same price.

The Energizer batteries are good and durable. They last longer than many others I’ve tried and always deliver consistent performance

Fits where a 9V battery should, snaps onto the terminal snaps perfectly. Provides power as it should and Energizer has proven to have a long shelf life.

For the price compared to Duracell, it is a good battery. Although, between using Duracell and Energizer over the time I have been buying batteries, Duracell has a longer life span but much more expensive. Never measured time of life vs. money between the two. Good battery overall.

Got these on sale as a total member and you can’t beat it. Thanks Best Buy! Now I can change all of my smoke detector batteries during the day instead of finding “the one” at 2:00 am.

These batteries are good just like Duracell. They hold their charge well and work a long time. I am pleased with my purchased.

Works great in my acoustic electric and great value for total tech memvers

These Energizer MAX 9V batteries deliver long-lasting power, perfect for my smoke detector and other uses. A bit pricey, but worth it for the quality. Highly recommend!

Batteries are as long lasting as any others IU have used

The batteries are durable and long lasting. The batteries are priced good.