Be careful what you use these in
November 11, 2014
I purchased the combo charger and four battery set from BJ. Two of the batteries came charged to about 3.5v and the other two were completely discharged upon arrival. So I charged those two with the supplied charger. When checked with a meter, the two I charged topped out at 4v, give or take a tenth. I just got the set, so I've only used one of the batteries, one of the 4v ones, in an Olight S10 Baton, which accepts RCRs of higher voltage. I've used it on the high setting for quite a few minutes a day for three days in searching out moths in the apartment, and it's still only discharged down to 3.55v.
In the "Features" description on the product page it says, "Replace the most of CR123A primary Lithium battery for a digital cameras and most flashlights." Accounting for the poor grammar, I assume it means it's safe to use these in 3.0v CR123A applications. DON'T BELIEVE IT. You could easily ruin your device by over-voltage. I'm going to run the current battery down to 3.2v or less before trying it in a standard CR123A device (Fenix PD22.) And I've also experienced the problem of inconsistent fit in the flashlight barrel, but not too badly so far. I hope to give an update after I've tried a few more over time.
Cons:Charge much higher than stated in description. Could ruin a device.