I bought these as an emergency option when CR123 are no longer available or very hard to find. These are the only ones I have found that fit inside the OLIGHT Baldr Pro 1350 Lumens. Most batteries are too long and the battery compartment door will NOT close when using other brands. Other brands are too long.
Many rechargeable never last as long nor do they produce as much light as throw-away lithium 123 batteries. But they do work and seem as if they provide enough power to match the output of the throw-away batteries.
Came back to order more since I now have 3 Olights. If you are not or do not fancy yourself an operator, the Olights are PLENTY durable and quality for 99% of users and these batteries are a good option for stocking up.

Super job from Battery Junction. The post office lost the package, but found it finally. Great price, and great battery.

Bought them for Arlo cameras, fit wll. It held decent charge - no better than others manufacturers. However, found some nasty leak from the Positive end of battery. It also over heats during charging.

I bought theses for my Arols and they are awesome they last at least twice as long as the throw always. However 1 of my 16 died like shows no volts on a meter and won't charge. This happened within the first 3 months of them being in my cams. So now I'm one battery short. If that battery wouldn't have died I would have given these batters a 5star because they really do last longer on a charge than any other throw away batter I have tried and that says a lot I have definitely saved $ but just sucks because now I have to spend $8 for one new one after shipping and taxes.

I have used Nitecore and Olight RCRs and wanted to try some other brands as well. The Xtars are 34 mm long and are finicky when charging. I bought two and both showed full charged at only 4.12V, as opposed to 4.20V. I had to take them out of my chargers (Nitecore SC4 and D4) a few times and then put them back in before they would fully charge to 4.20V. I found the Xtars don't last quite as long as the Olights and Nitecores either, even though they are all 650 mAh. I am a fan of the Xtar in 18650, but am a little disappointed in their RCRs.