Amazon Basics 8-Pack 9V Alkaline Batteries, 5-Year Shelf Life - for Smoke/CO Detector, Electronics & AudioThe Nordic Swan EcolabelThe Nordic Swan Ecolabel

These are OK batteries, but I would not recommend buying a lot of them for storage for later use, as I did. (All sizes). Brand name batteries usually have about a 10 year shelf life. I have a large home, 15 rooms total with a smoke/heat detectors in every room except the bathrooms and laundry room. So I bought quite a few of these in a couple of orders because I sawp out annually. A little over a year after my first purchase, half the D's in the box were discharged and most of the AA and AAA's were done. Buy them to use immediately, not to use later would be my suggestion.

Why did you pick this product vs others?:I've only used them for smoke detectors but seem to work well and last atleast a year.

I love Amazon Basics batteries and have noet had any problems with them. They power our devices as we expect and they are a good value from a brand that we trust. I have another size in our flameless candles that are set to come on every night, Those batteries have consistently powered the candles for 4-5 months straight before needing to be replaced. The candles are set to come on automatically every night for about 4 hours.

After battling my beeping fire detectors, first one, then another....after inserting these 9 volt Amazon batteries, I.finally changed to new, other brand batteries, and they worked. I sat down to write an unflattering review of the Amazon batteries but after discovering that I had purchased them in 2018 and they were going on 7 years old....they are guaranteed for five years and they certainly exceeded that. So...I apologize, batteries. Good on you. I only gave them four stars because the clear wrapping on each battery is hard to detect and remove.

These are batteries. They are individually wrapped in plastic. When you unwrap them, they power the intended device. I’m writing a review for a battery.

They work! Just your average battery, works well, lasts. No Noteworthy comments!

Great quality and easy to use. Battery size is appropriate for what was needed. They seem to last and provide appropriate brightness. Love amazon products and will purchase again.

it works just as intended and has been very useful.