Energizer ULTIMATE LI AA 4PK

In my experience, finding reliable batteries can sometimes feel like a wild goose chase, but I must say, these Energizer AA Lithium Batteries have been game-changers for me. I use them exclusively for our Nest smoke protectors, and honestly, I couldn’t be happier with their performance.For starters, the battery life is phenomenal. It’s not just me saying this as a casual user; I've genuinely noticed how infrequently I need to replace them. That's a relief when it comes to smoke detectors, where ensuring consistent power is non-negotiable for our family's safety. I mean, who wants to be jolted awake at 3 a.m. by that dreaded low-battery chirp? Not me.What’s more, they seem unbothered by Michigan's notoriously fluctuating temperatures. Whether it's a crisp winter night or a sweltering summer day, these batteries just keep delivering, which in my book, makes them super reliable.Another thing I appreciate is their lightweight design. Okay, I'll admit, batteries aren't something you carry around all day, but it's still a neat perk when handling them for installation.All in all, I tend to think these Energizer AA Lithium Batteries are a solid investment if you’re after peace of mind and durability. They might initially seem a tad pricier compared to regular alkaline ones, but their extended lifespan easily offsets that cost. We put trust in them, especially for critical devices like our smoke protectors, and I’d recommend them without hesitation to anyone looking for trustworthy power solutions. Seriously, they provide exactly the kind of reliability we all want in our homes.

Good quality batteries . I use them in my Blink cameras of which one is gor wildlife . Gets a lot of use and lasts longer than standard alkaline batteries.

Very powerful batteries!

These Energizer Ultimate Lithium AA batteries are excellent for high-drain devices like the Blink Doorbell. They provide reliable, long-lasting power, giving me around 4 to 5 months of continuous use before needing replacement. For performance and durability, you really can't go wrong with Energizer—they are worth the purchase.

Very good

Great value

These batteries are the only ones that last more than a couple of days in my handheld milk whisk. The long life is also important for my garden clock and weather station which are hard to reach.

Great thank you

Buenas pilas las usamos para una cámara blink y duran mucho

Great long lasting durable batteries! If you can afford extra for lithium go for it they are worth it.

These lithium batteries have quickly become my go-to for high-drain devices like cameras and flashlights. They last significantly longer than regular alkaline batteries and hold their charge well even in storage. They also perform reliably in cold weather, which regular batteries often struggle with. Lightweight and leak-resistant, so I feel good keeping them in devices for extended periods. Great performance and peace of mind, even if they cost a bit more than standard batteries.

I'm sure too many of us have opened a drawer seldom opened and found a flashlight or other battery operated item, and realized that likely it has been damaged due to lack of use over the passage of time. Alkaline batteries, no matter the brand, still seem to disappoint - and damage - due to chemical leakage. But even if the cells have not leaked, they are likely dead. So if this was your bedside drawer emergency flashlight, you're likely still in the dark. I was fortunate enough to be involved in evaluations of Lithium batteries when they were first developed in 1990. In fact, I salted away a few left-over 4 packs of Energizer's early L91 LithEon AA cells, and I've used one in the ancestor of what is now Gerber's Infinity Ultra AA LED flashlight, and others in toolbox lights. It's now 2011, fully 21 years later, and the remaining cells test "full", and the emergency and toolbox flashlights are damage-free and fully bright. When consumer volume and pricing for these batteries became available, I didn't hesitate to purchase and recommend these for use whenever the item will see long periods of storage (intentional or unintentional) after which like-new operation is necessary. Lithium batteries also are more tolerant of temperature of operation as well, making them a good choice for use in extremes. Energizer Lithium AA and AAA are now available in two capabilities, this one, the L91 AA (and L92 AAA), and the newer EA91 AA (and EA92 AAA). Shelf life of the L91 and L92 products are specified to 15 years retaining 90% of charge, while the E91 and E92 cells are specified to 10 years retaining 80% of charge. Both families will provide about 30 hours of operation at 100mA drain, which is typical for an LED flashlight. The L- family also provides a higher peak demand current drain capability. So, then, if your challenge is having a good, long run time in your every-day use electronics without worry if the item gets put away in a drawer for a time, choose the EA- series; if you're using AA's and AAA's in emergency lights and similar emergency gear, or demand the longest run-time after extended storage between uses, chose the L- series. Relegate your NiMH rechargeables and Alkalines for heavy use, regularly replaced items, but when long periods of storage between uses are possible or intended, use Lithium. Gerber Infinity Ultra Task Light.

All the four batteries died in less than 2 weeks. please consider buying it from another seller or from nearby local shops ( if it's available). I am really disappointed after paying such a huge price for just four batteries and it lasted only for 1- 2 weeks.maximum.