We've used Members Mark (MM) batteries for many years without any problems. They've always performed/lasted better than other generic brands until now. The last two packs we purchased didn't even last half as long as they have in the past. We've always gotten a good 3 weeks out of our LED Christmas lights. This year we had to change the batteries 3 times just to get from Thanksgiving thru Christmas, and they they showed noticable dimming after only the first day or two. I tested several with a battery tester, which showed them to be full. So, I'm at a loss as to what's changed, but we will likely not trust Sam's Club MM batteries again, at least for a long, long time. Even the very cheapest dollar store batteries last longer than these do now.

I purchased this 48 pack of Member’s Mark AA batteries for simple replacements for my toddler’s toys and boy do these batteries absolutely suck! At best I’ve had these batteries last 2 days in standard low power toys that other brands may have lasted weeks with. I’ve gone through the entire pack in less than 10 days, I’m absolutely ashamed.

About 1/2 of these batteries fail to generate the power needed to light the devices we’ve used them in. Energizer and Duracell have no issues with the same devices. Batteries do not expire for 2 years, so they’re not old.

I ordered two packages of Markers Mark AA batteries. The order was delayed for almost a week. When itdid arrive, both packages were opend and the batteries were just scattered in the box.

not happy with these... have bought a lot of them through the years and these last two packages are killing my battery operated lights and devices... they are leaking all over the place...

These batteries last longer than Duracell and Energizer. Our son did a science experiment to test and these were the longest lasting. Best value for the product comparison.

These batteries do not last at all. Maybe a week or two. I use them in different items that are used often and not often and these batteries seem to last way less than the regular brand.

Delivered yo wtong place left in rain

I used the entire package to run lights/strobes/small animatronics for a week during Halloween. Had a few out of the pack lose voltage very quickly. Tested with multimeter, coat savings wasn't enough to buy again. Also bought the large pack of D cells, had a few end up leaking too.

Haven't tried them yet but my daughter told me that I needed to order them because she said they're much better than Meijer brand she said she's never bought my or brand ever since she's been buying from Sam's Club remember Mark batteries she said they last much longer so I'm glad I got them and a good price