Great Batteries! These last a long time. I use these in my insulin pump and also flashlights. My pump runs 24/7 and with the Energizer alkaline batteries I usually get 3-4 weeks from them. These lithium give me at least double that time! I've been using them in my pump ever since they came out. Highly recommend!

We only use Energizer Ultimate Lithium batteries in our security products and other critical devices that need long lasting batteries. These have also been very helpful in my chatty smart remote that wakes itself up constantly—it used to exhaust standard batteries nearly every other week but now these batteries can keep it going for months. These are durable and reliable, with no leakage or safety issues so far. The packaging is standard so that one needs to be on the lookout for the Ultimate branding to find this exact Energizer variation. When these die infrequently, they are not rechargeable, so I add them to my pile to recycle and dispose of safely at the local hardware store.

Bought these t replace the same batteries that came with my blink cameras. The original batteries have lasted 3 years ( for the most activated cameras) So I bought enough to replace each device as the low battery warning activated. These cameras and batteries went through Hurricane Ian without a hitch. Worth every dime for the reliability and security for critical use applications.

Lithium batteries have risen in price quite a bit in the last 2 years. This 18 pack at Sams Club is the best deal I have been able to find on Energizer Lithium Batteries. I tried a couple of generic no name offerings that were a little less expensive, but they did not perform as well as the Energizers. These batteries perform well in extreme weather conditions, but they also last longer than standard akaline batteries in normal operating environments. I have a couple of devices that go through standard Energizer Max and Duracell akalbine batteries in about 6 to 10 hours of use. I decided to try lithium batteries in the same devices and got about 3 to 4 times longer life of the batteries. Even though they cost more, they were actually cheaper to use because I didn't have to replace them as often as the standard alkaline batteries.

This is the first time I have used Energizer batteries for years. I decided to try them after I researched which was the better battery, Duracell or Energizer. So far, they last longer than the Duracell AA batteries.. The price wasn't too bad because of the instant savings. I checked COSTCO's and SAM'S CLUB was cheaper.

I always keep batteries on hand but at Christmas I like having the big package and good batteries for the grandkids who get toys and need batteries. Toys are great but not so much without the batteries and on Christmas day, it is too late. These batteries work well and are long lasting; overall they are a good price with the instant savings. I cannot find them anywhere else for this price.

I have only used a couple of them so far with no issues. I purchased the Energizers, having been a long-time customer of another major brand, which I needn't name here, but they have a copper top, because I have had several leakages, both in use and even still in the package. They assert a 10 year shelf-life. That hasn't happened recently. So, I am switching brands. I hope Energizer's 25 year shelf-life means they will last at least long enough to put them into service.

They work great in our in home security cameras.

They work. They're lithium. Blink cameras say lithium only so here I am.

Great price and are excellent in my security cameras.