Nitecore RCR123 Rechargeable Battery

The NiteCore NL166

650mAh 3.7V

One of Nitecore’s most popular batteries.  The rechargeable CR123a.  Also known as an RCR123.  

Note that many devices that will use the disposable CR123a batteries will also accept these rechargeable NL166 batteries.  But some will not.

So if you are trying to save on batteries and sick of throwing them away – check with the manufacturer of your device and see if they will take these ones.

650mAh 16340 (RCR123A) rechargeable li-ion battery has built in IC protection that will protect against damage due to both low and high voltage. You may charge these batteries over and over for years to come with a rating of more than 500 charge-discharge cycles. This is a button top cell making it easier to use with many flashlights.