CR123A Lithium 3V Photo Lithium Batteries (4 Pack)

These work really well, my smoke detectors use these they are hardwired and this is what was used when installed. I tried ordering the same battery in a different brand it wasn’t the same size so I returned it and ordered this one and it fits.

As advertised. Performing well

Works well and lasts much longer than some other brands. In my ADT 3:1 CO/smoke detector, other brands typically only last 1–2 months, but this one has much better longevity.

Needed these batteries for sensors in my home security system. One battery arrived damaged, but the others were in tact and a perfect replacement.

These batteries are expensive and since we just had the alarm system put in at the end of January, I was surprised that one of them was showing low - then again doors are used more than windows. I watched the u-tube video and decided to try to do it myself (of course on a weekday should there be a problem). I changed the one door and then decided since it worked again just fine, I would do the remaining doors. I don't like ladders, but it really was not that difficult. I don't know the longevity of these batteries as I do not know if the original batteries by the installer were new.

Good product and fast delivery

These batteries have been in all of my alarms systems for at least 2 years. Figured that is was just about time to change them, so I replaced them with the same Panasonic CR123A Lithium Batteries.

Performance

Work great for my needs great price

Used the battery for my home alarm sensor. So far its doing fine no complaints.

Used these for my alarm sensors. Seem to be working good so far but didn't show a full charge. Not sure if it's my system or the batteries. Good price though.

Excellente pile! Livraison parfate!

These batteries came packaged very nicely. They were caring enough to package it with a small piece of Styrofoam between the battery's to prevent shorting out during shipping. The price on these batteries is fantastic, although they do get cheaper the more you buy. Incase you didn't already know I'll let you in on a little known secret, these batteries are what the Canadian military uses and I know this for a fact as I have a family member in the military who confirmed this for me after I read it somewhere online and wanted his thoughts I regards to the truth on that. For me I personally bought these for the Olight Baldr Pro and I was very worried because the light has a turbo mode which needs a high power battery. This did the job phenomenally. One tip though, the Olight uses their own proprietary batteries which are sized a few millimeters smaller than these because they want you to buy from them. There are many videos on YouTube or just Google that explain how there is a tiny little rubber washer inside the battery compartment which you can remove with a tiny pair of tweezers or something similar and then you can use any 3rd party batteries such as these fantastic panasonic batteries. Also I suggest you stock up if it's for the Olight because it goes through batteries very fast, especially when used in high or turbo mode. So you might aswell buy a larger pack now since I've done the testing for you and can guarantee that these are compatible and all features will work as well as they do with the batteries it arrived with. Enjoy ;)