No you can't because the driver and/or the diode of the Zeus x are designed to only use 2x26650 batteries.
If you put more batteries, that will mean higher voltage which might damage/burn the driver and/or the laser diode.
Also how would you fit more batteries inside that laser pointer?
Always follow the instructions for a laser pointer like how to use it, the batteries, the use etc.
You can always ask the seller about a laser pointer if you have questions.