I find myself having to replace these faster than I have in the past. I'm going to look elsewhere to buy a bulk pack which is really inconvenient for me. But I no longer trust these batteries

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...

Just purchased a pack of these batteries for various items around the house. However, the most important one being my bp machine. I removed the old batteries and put in all new MM batteries. Didn't need it at the time, so placed it to the side. Fast forward a week later and I go to take my bp and the machine wont even turn on. I replaced the "new" batteries with another set from the pack and nothing. I figured the machine had finally ran it's course after 4 years. But then I decided to put in the previous batteries and the machine started up displaying low battery, but functional none-the-less! So I replaced all the old batteries with different "new" batteries from MM and return to blank screen. So I got a big package of dead batteries that I now have to return! Maybe it was just a fluke, but when I return them I am going to get me a trusted brand. Which is what I should of did initially.

Overall great batteries in price and value. I like the fact they are guaranteed for such an extended period of time. I am concerned with the overall ever increasing prices at Sam's Club. Especially over the past six months. It's becoming less expensive to shop at my local name brand grocery store.

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.

Two things, first they don't last as long as other batteries, and when I put them in a thermometer after a while, it would not work. I checked the voltage with a volt meter and it showed proper voltage and current, but would not work until I put another brand in it. Also, they started leaking after a while.

I purchased these batteries for use in my trail cameras this fall. I've had multiple batteries bulge and almost burst inside the camera. I'm not sure if it's the temperature changes or power usage of the camera, but it's happened in multiple cameras that never had issues with other battery brands.

Right after I bought these batteries, I put them in a clock and noticed that the clock was running slowly. After testing them in a battery tester, I found that the charge was not 100% but borderline yellow vs green on the chart. These batteries are worthless.

Typical performance when it works. Will leak and spill corrosive gunk all over your devices. I am writing this review just after realizing that yet another desk clock in my office has been destroyed by a faulty battery. 5 cent part has destroyed another $12 clock. Previously I have lost more battery operated small equipment (calculators, oximeters, etc.) Lastly, "better" brands are not faring any better.

Will definitely buy again