18650 to 21700 adapter

A simple adapter to run an 18650 battery in a mod that takes 2170x batteries. Just drop a couple coins (i used 3 dimes) in the bottom, then stick your battery in (positive end first) into the adapter and stick in your mod.


**NOTE: Use this at your own risk. Lithium Batteries are dangerous.
I've been using it consistently over the last week or so without issues, but your mileage may vary.