I bought this 12-pack about 6 months ago. I used 4 in my stationary bike and set the other 8 aside. The package guarantees a 10-year shelf life. The first four finally went dead after about 6 months. I replaced them with the second four. They were dead also. I replaced the second four with the third four. They were dead also. My take on this? Only buy what you can use immediately because if you wait 6 months, they will be dead. But of course, Sam's doesn't give you the option of buying only four batteries. So buy your batteries somewhere else.

These are economical good performing batteries. They are a regular purchase for us.

Almost every battery leaked inside the flashlights. Extremely disappointed

Probably as good as name brand but too soon to tell if longevity is as long as claimed

Package was open batteries everywhere

Stick with the name brand, so far out of 8 batteries tried, 4 are dead from a brand new pack

Bought these today. Checked a competitor and they were five dollars cheaper than these generic batteries. I'll be returning these tomorrow.

have not used them yet

never received order

They work well. I have only had them a short time so do not know yet how long lasting they are. I bought a large pack of batteries because I want to be sure I have batteries if I lose electricity again.