Fenix 18650 Battery Holder
The ALF-18 battery holder allows you to use an 18650 battery in flashlights
that are built to use a 21700 battery. Simply insert your 18650 battery into
the holder and place both into your 21700 capable flashlight. Made with copper
plated contact, providing excellent conductivity performance. Compatible with
button top as well as flat top 18650 batteries. Compatible with
 
Product Features
  

         
Size: Length-2.4 inches (61.2mm), Diameter-0.85 inches (21.5mm)
         
Weight: 0.2 oz. (6.1g)
         
Material: PC- ABS materials, Copper plated positive contact
         
Compatible with: HT18, TK22 V2.0, TK22 UE, PD36R