Customer Ratings & Reviews

Energizer is the best battery. The batteries came promptly.

I have an electronic door lock on my front door, it is a bit of a pain in the butt to change that battery so I prefer to not have to do it very often! These last a long time, which I appreciate.

These batteries are exactly what you’d expect from Energizer- energized! They’ve done exactly what I needed them to do... no surprises there.

best long-lasting batteries by energizer at best price

Batteries are batteries but these are the best brand you can ask for

So glad I found this battery at best buy for my smoke detector. Worked great. I went to other stores and it was out of stock. Best buy is good at replenishing their items.

I bought these for my Kidde smoke alarms. They're the recommended brand for them. They should last for a year.

I like being able to buy a long-life 9 volt batter battery in a two-pack. I don’t use a lot of them, but it is nice have a spare available when I need one.

We use these in clocks, toys, and other things around the house. They always deliver great performance and last a long time. Price is comparable to other top batteries.

Use to purchase only Duracell. Found out Duracell was owned by P&G. Won’t bring any P&G products into my household so I gave Energizer a try. Great batteries. Long lasting in all my devices – mice, remotes, etc.

Best 9v batteries last along time save money in thevlong run

You can find cheaper batteries sure, but they will not be as good as Energizer. This company consistently delivers high quality batteries at a reasonable price.

I like that the battery has a long shelf like. I like to keep one on hand in case the smoke detector battery starts chirping, this way I can replace immediately.

Choosing batteries is not something you should try to experiment with: try to save by buying unknown brands. Energizer and Duracell are equally good and I always buy them when I need batteries

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

I always find that the Energizer batteries give me the best long-lasting batteries. These are 9-volts for those pesky smoke detectors that annoyingly chirp when the batteries need replacing.

Battery is just as advertised. Works great in my smoke detector. I definitely recommend this battery. I will be purchasing additional batteries in the very near future

One of my biggest pet peaves is hearing the constant chirping of fire alarms with low batteries. To extend out the time as long as possible, I turn to the Energizer bunny. No more chirp.

The batteries in my smoke detectors were chirping away, so picked these up when I got my phone. They are batteries, and they work. What more can I say?

Good ol' Energizer batteries, nothing wrong with them, they worked as intended and they lasted a good while!