I purchased these for my smoke detectors when one was beeping, and the price was right for the set of four. I haven't had any issues with them.

The item performs consistently, just like the copper top battery.

So far, everything is working great and I have no complaints.

The job was done just as well as the others.

A few months ago, I purchased a 4-pack of 9V batteries for $6.99 when I needed to restock. They appeared to be the best value for a small quantity of 9V alkaline batteries at the time. I have since used 2 of them in smoke detectors and they are performing well. I am satisfied with their performance so far and will see how long they last. This was my first time using this brand of batteries.

The item had 50% success rate as 2 worked and 2 didn't, leaving me uncertain about its reliability.

Received these batteries recently, so I can't comment on their lifespan yet. Hoping for a long and reliable performance from them!

This product is a great value and has a long lifespan. I have been using them for months and have not had to replace them yet. These batteries are used for my bathroom scale and smoke alarms, and they have been reliable.