Customer Ratings & Reviews

It is very frustrating to have batteries losing power in your camera. No problem with Ultimate.

Always use energizer or Duracell. Leakproof, long lasting and powerful

the Energizer batteries are great batteries- long lasting, durable and very cost efficient for any of your home electronics, outdoor gear and more

Just bought these batteries yesterday for a lint remover Best Buy came and clutch. These might last a long time.

BEST BATTERY!! LONG LASTING WORKS GREAT WITH MY MEDTRONIC INSULIN PUMP : )

Bought these batteries for my blink cameras. I have 2 doorbell cameras and 4 outdoor cameras. The batteries last quite a long time IF I remember to turn the cameras off while doing yard work. If not, I have 200 videos of me walking back and forth, draining the batteries unnecessarily

These batteries are the gold standard for power-hungry gadgets. My smart smoke detector quickly drained the previous standard alkaline batteries I used, which was a constant hassle. I upgraded to this Energizer Ultimate Lithium batteries, and they have been performing flawlessly ever since and in good health. Such reliability is crucial for safety devices like this. The battery performance is definitely 5 stars and is well worth the price for the long life and peace of mind. (Note: The packaging was not in a perfect shape upon arrival, but the product inside was completely undamaged and functional.)

These batteries are very l9ng lasting, lightweight and never leak. They are perfect fir high drain devices. Best of all they are not affected by hit or cold temperatures.

Very good and durable. I used a different types for my Blink cameras and didn’t last 1/4 of the time these ones last.

Awesome batteries that is what I used for my nest smoke alarm last last long time over too years and counting

Definitely buy lithium batteries over alkaline. They last 3 times longer. I have tried different knock off brands from amazon but duracell last the longest by far.

Batteries, as expected! They last much longer than alkaline batteries in the cold.

Didn't realize the type of battery and possibly the brand made a true difference in the working of a product. At first I had bought cheap, then read instructions which stated the required battery to function. It did matter.

The only Li AA batteries worth buying. Long lasting. light weight.

We have found these Ultimate Lithium AA batts last about 2x longer than the standard Energizer AA battery. We have the Yale Smart Lock 2 with wifi and fingerprint. This requires 4 of the AA batteries. The product docs say about 3 months for battery life, which is about what we got with Energizer regular alkaline AAs. Compare to the Ultimate Lithium AA that gave us about 6.5 months. Worth the price difference in this case!

I needed non-rechargable batteries for my doorbell camera. I didn't understand why they couldn't be rechargeable until I did some deep digging. Rechargeable batteries, evidently, don’t hold a charge well when cold weather sets in. These batteries have worked fine for my needs.

Have to use lithium batteries for my BLINK camera. They last an appropriate length of time. Price is reasonable.Energizer appear to be the only brand that off Lithium capabilities

I wouldn't buy these for everything due to the price premium, but I do use them to power an outdoor temperature sensor and a small flashlight I keep in the car. Both are exposed to frigid temps in New England winters, where I find the lithium batteries do much better than traditional alkalines. "Regular" (alkaline) batteries tended to leak or just run out of power quickly in sub-freezing temps, but lithium hasn't been affected much at all. For what it's worth, they're also a good deal lighter than alkalines (and less than half the weight of NiMH rechargeables), which I could see being a consideration for say, serious backpackers or situations where an ounce would make a difference.

I usually look for cheap batteries, but needed something to last much longer

Able to power our home surveillance camera. Response time for movement notification is expected. it's been a month since installation of the batteries. Previous installation identical batteries lasted more than ninety days of continuous monitoring.