Duracell CR123A 3V Lithium Battery, 4 Count (Pack of 1), 3 Volt High Power for Home Safety, Security Devices, Flashlights, Smoke Alarms, Home Automation

I recently upgraded my home alarm system to wireless and all of the ADT contacts use this size battery. I looked at cheaper alternatives, but there were many complaints about other brands that the batteries just didn't last long enough and required replacement.I decided to go with Duracell Lithium because it is a tested, tried and true brand of batter. Yes, it is more expensive than other brands, but you are paying for quality, less risk of leakage, and good value for the money. You may spend more up-front, but you will be replacing batteries less often.

These batteries work great for what I needed them for.

They have proper voltage, I checked after opening package. My smoke alarms are good to go!Perfect price

Bought them 6 years ago for a security system, though the security system has been replaced, these still work just fine!

Sustainable

These are the best batteries you can get . They are more reliable. I used them for my alarm system sensors throughout my home.

What more can I say? They are real Duracell cr123 batteries in a 2-pack. Nothing fancy or extraordinary. They do exactly what they’re suppose to do. I use them for my Pulse Plus+ taser. I average a battery change every other year like clockwork. Buying only Duracell allows me to plan and remember when it’s getting close to a battery change as opposed to using other cheaper, off brands and not knowing when they’ll run out of power and I’ll get stuck without a way to defend myself. Definitely recommend. Will be buying again in 2 years.

I like the Duracell batteries for their long life and dependability. I do use other brand names but I like the Duracells. Price wise they are a good buy.