How Do I secure My Bluetti Apex 300 and Expansion Battery

I recently purchased a Bluetti Apex 300 and Expansion battery for my camp and I am looking for a way to secure them to avoid theft.

They are located in a small room with a wooden floor next to a wall. I can access the wall studs if necessary.

I thought I could use a braided steel cable and lock them to the wall stud but I don’t think I will be able to get the cable through the handle of the expansion battery once they are stacked.

Any solutions would be greatly appreciated.