Voniko CR123A 3V Lithium Battery (6 Pack), High Capacity 123 Batteries, 3 Volt CR17345 for Smoke Alarm, Flashlight, Home Automation

It could be my bad luck or some other causes - I used them in my smart lock. The first pair lasted five weeks, the 2nd pair lasted 2 days, and the 3rd pair lasted 2 weeks. I have no idea what happened to my purchase based on the high customer rating. [Additional comments] Eventually, I realized the issue was actually with the smart lock itself — it consumes batteries very quickly due to maintaining a constant Wi-Fi connection. I also tried a well-known U.S. battery brand, and those batteries did not last long either. In comparison, these Voniko batteries performed quite well.

a great alarm battery to have on back up. great price

Something I don't want to do but must. ADT crap and the batteries go out all the freaking time. Freaks out my dog although we are not supposed to have to do anything with batteries they take care of that then comes COVID... now we end up changing batteries all the time. Must buy again

Buying 2nd batch. These are a value for the money and consistent. I run 2 of these an old Surefire GRX2 Led 600 Dual for the dogs. Surefire claims 52 hours on low (15 Lumens) with their batteries and 1.5 hours on high. I run this on low 98% of the time. I probably got at least 30 hours on low before the high gets disabled . I got a couple of more hours on low probably at 50% -75% on low which is still bright enough for cars to see me and ~10 feet ahead if I really need it. I can go much longer but I swap it out. For ~$1.67 a battery I can't complain vs. $4.60 for a Duracell. The only con I noticed is it drains more in short spurts vs. longer use walks. Having said that the low and high and low are true and functional.

Wasn't sure of these because they wee so low cost but I tested them in several differant machines. My flashlight stayed on for 4 days before getting dim. I put them in a holosight and it stayed on for 5 days before I shut it off.

Work pretty good and make my flash light super bright

This saved my security system devices. They kept beeping and I initially bought the wrong batteries.

I don’t write many reviews but this is one that I feel needed it. If I could give zero stars this would earn that. Only 1 out of the package of 12 came out of the package even close to listed voltage of 3V (2.94 tested with a Fluke 117) the range was 2.44 to 2.72 for the others. Most when attempted to use in ADT sensors immediately reported low battery at best and a couple didn’t even last 5 days I waited for the duracells I ordered to arrive. Compare that to the 18+ months for the original panasonics that came in the sensors or 20+ months for the energizers I used to replace those. Sorry I don’t have readings for those as they worked perfectly fine out of the package. I had bought these as shortly after the energizers simply because the cost seemed like a great deal. I kept them in the original package in my closet. House temp is between 70-75 so well within normal storage conditions. Save some time and money and just get the name brand!!