10 Panasonic CR123A 3V CR 123A Industrial Lithium Batteries

I have used several off-brand batteries for my smoke detectors. These are the only ones I have found that are consistent. The retail ones are a few dollars more but these are a great value and seem to be long life.

order a 10 pack of these cr123a battery test all 10 and the range was from 3.4 to 3.7 all tested good and the date code on all 10 battery is 1/2035 so battery have not been sitting on a shelf good fresh battery with a 10 year shelf life AND they all have the green ring if they have no ring its a very good chance there are fake knock off

I have purchased these batteries twice from this supplier (I have a lot of smoke detectors). The quality of these batteries is excellent and they have a lengthy service life. The seller does a very good job of packing them for shipment. My sense is that this is a caring company as evidenced by the inclusion of a small “Thank You” note expressing gratitude for my business, a polite request to write a review, and contact information for post-purchase concerns.

Ok

Battery is ok works fine for what I buy it for

The ones we deployed in 2024 at work! But we will have to update this in a year or two to report that these are truly long-lasting industrial grade batteries.

In short, it's a regular Panasonic 123A, but cheaper packaging and generally sold in higher quantities.According to testing on candlepowerforums.com, they perform very competitively on side-by-side comparisons across the board, with no particular weaknesses.For me, the closest competitor was the US-made Surefire 123A. I chose Panasonic for overall value.Japan has made some of the best consumer batteries on the planet for decades. Panasonic has been innovating with batteries for a century now, and Panasonic and Sanyo led the way for premium performance rechargeable batteries in the '90s when I started racing RC cars - you either used Panasonic, or Sanyo. Panasonic later bought Sanyo (2009-2011). To this day, probably the best AA you can get is the Panasonic Eneloop.I hate buying Chinese, for various moral/ethical reasons, but most of all because I don't like buying junk, or unsafe products. I buy these 123As with confidence.

Needed smoke detector batteries. They work