Bili, the fuse is doing its job. You have a short somewhere, you can be glad the fuse blew. A thermal runaway is nasty business. I know this from first hand knowledge.
ONE MORE THING. ANY Vaper that doesnt use a meter to check batts, attys/coils is like a doctor without a stethescope
ONE MORE THING. ANY Vaper that doesnt use a meter to check batts, attys/coils is like a doctor without a stethescope