Smok al85 getting to hot to touch

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Hi
I have a smok al85 with mini beast tank. Was working fine but recently the battery metal cap is getting extremely hot to the point where it burns my finger. Iv changed the battery and changed the atomizer. I'm using a Q4 atomizer. Any help would be appreciated. Al85 is 2 months old.
Thanks

Smok al85 getting to hot to touch