I understand the poking of fun and appreciate it but then a piece of my adult side weighs in.
A mech mod has no safety feature other than human intellect and knowledge. As far as the battery is concerned the coil is there to prevent a hard short or to prevent the internal resistance of the battery causing heat, damage, and then venting.
Only seeing the coil as a heating element and not a fundamental safety feature of the circuit is dangerous in this application.
You are basically making a toaster with no safety fuse. Being that it's mechanical means it is efficient which is what we love about them ("it hits hard")
So I chimed in because I knew the simple and easy explanation was to send the guy to steam-engine but the empathetic sonofa..... that wants to teach respect for the idea or form spoke up... You don't know what you don't know and all that jive.