having an issue with a USB passthru from altsmoker
first one went out and killed an atomizer, sent it back and it was replaced no problems
second one lasted all of 4 hours, killed another atomizer, went to check if it was dead and it killed the battery.
checked the battery with a third atomizer and it killed that one as well.
checked atomizer and it killed the spare battery.
so after this ......ed chain of burnouts im out 2 batteries 3 atomizers and 5 cartridges that melted in the attys and the passthrough.
until these things get manual switches don't buy them, you'll just end up wrecking your stuff.