K2 Energy LFP123A Rechargeable Li Ion 3.2V Battery Replaces CR123A - Single

If you want to use rechargable batteries in your Vortex UH-1, this is the battery that you are looking for.Protect your investment by using the correct rechargable battery. This is it!

Bought these as an alternative to Lithium disposable CR123 batteries from SF, as I teach a tactical low light/no light class. I charged them up in a Niterider digital charger, they put out just the right voltage as not to smoke any of my tac lights. Beware of other rechargeable CR123 batteries as an over voltage can smoke your LED driver. As with any rechargeable battery once the light starts to dim it runs down faster than disposable batteries. But for what I’ve saved and the fact that I’ve kept them in a Blackhawk gladius flashlight for weeks or months without recharging. It was well worth the cost.

I purchased this battery as a replacement for one that I damaged with a bone headed mistake I made with a charger. However, I obtained my first set of these batteries from the manufacturer of the illumination tool for which I use them. I have been using these K2 batteries for three years and find they give long life between charges. They are said to only give 50% of battery life when compared to non-rechargeable batteries. I have not found that to be true and have enjoyed what seems to be "regular" battery life between charges. These K2 batteries pay for themselves quickly with the cost of non-rechargeable CR123A batteries going for over $1.00 apiece.

I bought a bunch of these batteries to use with my Surefire and Steripen products and they are reliable and have saved me a bunch of money. They are a little pricey, but they pay off in the long run. They have a good run-time and I paired them up with the K2 battery charger and now I am burning through batteries, without burning a hole in my pocket.

These are the only batteries to use! Very pricey; but, hold a charge for a long time when on the shelf. The cheap ones wont hold a charge for more than a few weeks. These batteries hold the charge for a very long time, so are ready to use when needed.

I bought 4 K2 batteries to run in my Surefire flashlights. I would definitley reccommend these batteries to anyone wanting to save money on CR123 batteries. I have only had a problem with one of the batteries (out of 4) not recharging after a year of use. That being said, I still got my money's worth out of it. I bough a single on Amazon to replace it and havn't had any problems since.

Works very well in my surefire flashlight. Run time is shortened however being rechargeable is much more convenient. With disposable batteries you would have to replace often and not really know how much battery left. With these I know I'm always going out with a tipped off battery.

Fully charged when received. Used in in my Davis instruments weather forecasting unit which is solar charged and transmits wirelessly to theconsole in the house. Works perfectly. Better than the original which never would attain a full charge.