Panasonic Industrial CR123A Lithium Battery 3V 6 Pack

I put two of these in an LED flashlight and so far, so good. The flashlight operates with normal brightness just as it should. For the price these seem like a good value. They are much cheaper than a retail store, by far. They arrived in a small white paperboard box of six batteries with an expiration date of 02-2036. They appear to be in new, unused condition, and my prior experience with Panasonic products has generally been good.

Excerlent

I use these batteries in my smoke detector and motion sensors. Most batteries will only last one year. I normally get 2 years out of these batteries hey.

It was a little disconcerting that the batteries arrived in a ziplock bag. I actually took the time to check that they weren't counterfeit. From what I read and saw on line, the individual batteries looked legit and had a full 3.3 volt charge. It seems like the seller bought a large quantity of cells in bulk, separated them into smaller groups, and resold them. Ziplocks are cost-effective, but they did give me pause.

These work perfectly for my window alarm sensors.

The fire department said Panasonic (& 1 other) should be the only batteries to use in smoke alarms & who would know better ???

original equipment

Exactly what I needed for our smoke detectors.