They're batteries and out last Member's Mark by approximately the price difference making them no more expensive.

Great batteries slow coming. It took nearly two weeks to get these because of the weather in Texas- Really that's what they said !

These batteries have a very good track record of service. I use them in smoke detectors and door openers.

Not much you can say about batteries but I got the order very fast, from Sam’s as always and it did what I needed.

Needed batteries to replace the ones in the Smoke detectors in our house. We like Energizer & if possible always buy them.

I like to change my batteries on my clocks and smoke detectors. I always use Energizer batteries as they last a long time.

Exactly what you expect them to be and do. I change the batteries in the smoke detectors yearly and these seem to last the whole year.

Since our smoke detectors take the 9 volt batteries, i hate to be without them and these are a great value

We prefer these batteries for our smoke alarms. Best value for a 2 year battery and they also have a 10 year shelf life!

They had a discount for these 9v batteries but the shelves were empty during the promotional period. Right after that promotional period, the shelves magically fill up again. That's suck Sam