Yes a fuse will prevent your atty from shorting out your battery.
I'm still thinking the issue was the aspire 510 connection being flush and narrow and shorting against the positive contact of the mod.
Advertising aside, we all know mechs aren't the best combo for clearo tanks. The tanks aren't made for mechanicals.
I personally don't use those on mechs.
A nice RTA/RBA will work flawlessly on the launcher. I promise. All 5 of my kayfuns, 3 Aquas, 2 krakens,and a Prometheus all work great.
So do all my drippers (30 or so, too many to list).
Pm coming.