POWEROWL Lithium Batteries AAA High Capacity Long Lasting, 1.5V Triple A Battery for High-Tech Devices - 8 Pack 【Non-Rechargeable】

Comparable to those copper-topped batteries and significantly less expensive. Being Lithium they provide high power for a long time. Beware that when they deplete it is sudden, not a tapering voltage falloff as with alkaline batteries. I use these in high-drain devices such as camera and transmitters but with clocks, security devices, etc. I still recommend alkaline batteries as they "coast slowly into death" giving ample warning to change them out.

First, a disclaimer: I haven't had these anywhere near long enough to speak to their endurance. But going by the very favorable reviews, I took the chance. They arrived very quick, and I actually ordered a 16-cell package of AA'S. The AAA cells came in at 1.81 volts, the AA'S registered 1.79 volts. I checked against some Eveready Ultimate Lithium cells that I've had for about a year, but otherwise new & unused. They showed 1.76 volts. So, the Powerowl appears to be right about where you'd want them to be. The only negative, if even that, is the 10-year shelf life versus the 25+ years for the Eveready's.

These batteries work great. I don't expect much out of AAA batteries because they typically go into things like remote controls and they all last a really long time. But with these being PowerOwl and having a black label I expected them to be just like my other rechargeable, black labelled, AA PowerOwl batteries and they were not. The product never said it was rechargeable, and it was my oversight that was the problem, but be aware of this.

Found out about these from Project Farm YouTube page where he compared several different brands of batteries and these were the second best of all them but was much cheaper than the number one brand. So far they’ve preformed great, compared to the devices that I’ve been using alkaline batteries in.

Best batteries for $.

1 - star, although I do have a cautionary note, not necessarily because of the product (POWEROWL Lithium Batteries AAA High Capacity Long Lasting, 1.5V Triple A Battery for High-Tech Devices - 8 Pack), but because the Amazon purchase experience led me to buying these NON-RECHARGEABLE disposable batteries, when I wanted to buy RECHARGEABLE batteries. The bad: 1) The cautionary note is that I noticed that the positive battery tip is smaller than what I thought was the standardized tip-size found on every AAA battery that I've seen/used before. This sizing discrepancy might cause contact issues in sloppily designed/built devices that count on a larger tip to make good contact. So, beware. 2) Regarding the purchase experience: a) After sorting by "Avg. customer review, these "Amazon Recommended" NON-RECHARGEABLE disposable batteries showed up at the top of my Amazon search results for "Rechargeable Li ion 1.5V AAA batteries". Note that my first search term was "Rechargeable". b) It's easy to overlook the one place, i.e., one photo, where it's noted that these batteries are actually non-rechargeable. (I found the photo when I was trying to figure out how I bought something I did not want.) It's not noted in the description anywhere I found that these batteries are disposable. To be honest, nor is it stated anywhere that they are rechargeable. So, my bad assuming, because I searched for rechargeable batteries, that the top battery in my search results, which was also "Amazon Recommended", would be rechargeable. c) Amazon conflates user reviews of multiple POWEROWL battery products, e.g. rechargeable and non-rechargeable and AA and AAA sizes, into the user reviews for this single product. d) Amazon review's Ideas suggestions for this product review laughably included the prompt "Why did you pick this product vs others?" and the phrase "Rechargeable battery". Note that I did respond to the prompt and used the suggested phrase, but I'm guessing, probably not in the manner intended. To be fair and balanced, on the plus side: 1) Next day delivery happened as promised. 2) The Amazon delivery person was friendly when we exchanged greetings as I was outside tossing a ball for the dog when he came by. 3) Packaging was in good shape. The batteries are shrink-wrapped in sets of four. The batteries all appear to be in good shape, no bulging, not leaking. 4) Two of these batteries are now in my Fire TV Cube's controller and they're working fine. We'll see how long they last. Conclusion: Even though I feel I overpaid for disposable batteries, it's not worth my time to try to get a $10 refund and order the rechargeable batteries that I originally wanted. Over the next few years, I'll throw eight (8) more disposable AAA batteries into my electronics recycling bin. When this supply is exhausted, I'll try again to act in a more ecologically responsible manner.

Batteries were rated very highly by YouTube bloggers. I've had these instald for over a year on my Blink cameras. These are performing as expected, with no failures. Even in temperature extremes, these continue to operate.

I’ve been using the POWEROWL Lithium AAA batteries for a few weeks now, and I’m genuinely impressed. The quality is obvious right out of the package—they feel well-built and dependable, not flimsy like some cheaper brands. Even though these aren’t rechargeable batteries, they last so long that I honestly don’t miss that feature. I’ve had them in a high-powered flashlight and a few remotes, and the brightness from the flashlight hasn’t dimmed at all—it’s holding strong. I also like the size and how snugly they fit into all my devices—no wiggling or poor contact issues. The design is clean and professional-looking too, which may not matter to everyone, but it’s a nice touch. Where they really shine is longevity. I’ve gone through way fewer battery changes since switching to these, especially in high-drain gadgets. They’re a great value and save me the hassle of constant replacements. If you need reliable, long-lasting AAA batteries, these are definitely worth picking up.

Excellent lifespan with TV remotes

Très bien

I watched Project farm video about lithium batteries and one of the criteria for buying these was their alleged low temperature performance. I've put them into the temperature sensor in my freezer, at around -4°, but they lasted only a few weeks under those conditions. The sensor reports 100% charge and then they abruptly discharge over a course of a few days.

Tested at 1.80 volts good for out door temperature thermometer

These did last an hour. Tried it on my bath scale, tried it on my food scale. They both said "low battery".