Want to use your rechargeable 18650 batteries in your 21700 flashlights? No problem, with the ALF-18 Battery holder. The ALF-18 battery holder allows you to use an 18650 battery in flashlights that are built to use a 21700 battery. Slide your 18650 battery inside the ALF-18 battery holder sleeve, and your battery will now be the size of a 21700, so you can use it quickly and effortlessly in your flashlight. 

Made with copper plated contact, providing excellent conductivity performance. Compatible with button top as well as flat top 18650 batteries.

Specifications

• PC + ABD Materials 
• Copper Plated Positive Contact
• Size: 2.41" x 0.85"
• Weight: 0.22 Ounces