[Smokin' Joe]

Yes. It uses three of them, and the charger will charge the smaller 18660s, too. The sleeves to use the smaller batteries came with the light.

[ansel12]

Since I already have my long burning, well regulated, indestructable AA and AAA Fenix lights, like the LD12 which will run at three lumens for 97 hours on a single AA and the LD22, and many others, I can look at more 18650 lights such as this one.

What do you think of these run times, and numbers?