tyrone Rechargeable 123A Lithium Battery, CR123A Lithium Batteries Compatible for Arlo VMC3030 VMK3200 VMS3330 3430 3530 Security Cameras and Flashlights, 3.7V 850mAh CR123 Battery - 4 Pack

I got these batteries as replacements for the battery that came with an LED headlamp. I haven't had them that long so can't come at on their longevity but they do hold it charge for a while and charge fairly quickly.

One of the 4 batteries received over discharged in a 2 cell flashlight and will no longer charge. This happened on its 2nd charge.Update 7/23: Out of the blue Tyrone contacted me and offered another set of batteries to try out. Since my purchase less than a year ago 2 of 4 were bad. I'm not abusive with my CR123 battery usage and have quality chargers from Tenergy and Nitecore. The fact that Tyrone reached out on their own to make things right tells me they care about the customer and the quality of their product. In terms of value per mAh you can give these a try.

These batteries were a great value for the money, but like other have stated they came in short on their 850mAh capacity rating.3 charged fine right out of the gate, one had issues and only tested at 250mah. After a few charge cycles I got this last one and all of the batteries to read between 690 and 750mah using a battery capacity charger and tester.For the price I would say these are still a good value, I just wish companies would actually test and be honest about their own battery capacities before they exaggerate their numbers. I would rate these around 725mah batteries, which is still solid for the price but short of their 850mAh rating. For this reason, I have knocked a star off. We will see how they hold up over time and several charge cycles. I’m happy overall and for the price I would probably buy more. Just expect around a 700mah capacity battery and you should be happy with your purchase.

Works as intended

These batteries power several old but top-of-the-line flashlights and seem to work as well as the Streamlight originals. How long they last on the job and how many charges they will take will take some time to become obvious. The batteries charged up very quickly when they first arrived. I will post another review after these things have been used for a while.

I LOVE THESE THANKS 👍. AND THEY WORK

16JAN23On January 12th I received the following:"We sincerely apologize for any inconvenience regarding your order and would like to offer you a full refund for your purchase.If you would like a full refund: please reply 'Full refund'.We hope that you give us another chance. Thank you very much.Best regards,tyrone"I responded to Tyrone by telling them I wanted a product that performed as specified and NOT A REFUND. I suspect there is no such thing available because this product never met the 850mAh mark. I think it's unethical for a seller to offer a full refund when there's virtual certainty that they're product can't possibly operate as advertised. There's little doubt that the majority of buyers aren't able to perform these same battery performance tests and were delivered a substandard product.Unfortunately, there's a pattern here that looks like it's trying to fly under the radar, so-to-speak. Something akin to offering to pay for shoplifted merchandise. lol Perhaps the folks at Amazon can do something to thwart it. Until then beware.10JAN23These cells measure like they should have been labeled 650mAh. The two methods for measuring battery capacity show similar results, but they're nowhere near 850mAh (see photos). The best battery is 12.7% low and the worst is 19% low on capacity. The internal resistance shown in milliohms in the QUICK TEST looks OK."Cheap" sums up everything nicely. I'm not sending them back yet, but I'm sure not impressed.

Using these for a flir thermal camera