This Geek Vape Aegis Battery Cap is designed to work with 20700 or 21700 battery cells. It has been changed to the coin slot for tightening to allow more room for the longer batteries
The Geek Vape Aegis Stock battery cap supports single 26650 or 18650 batteries.
1x GeekVape Aegis Battery Cap for the Aegis 100W
Please note, this is just the replacement battery cap, nothing else.
This will not work on the New Aegis Solo