my evod and clearomizers go on fine. But when I put the vivi nova on it just wont tighten. it just keeps spinning.
Ok, sounds like the 510 threads are stripped out on it. shouldn't have happened on a brand new battery (unless you tried to really crank that vivi nova down on it)
I would recommend getting some beauty rings to go on the ego threads - this will really help support the tank a lot better and not put so much stress on the 510 threads alone.
IM me with your address and I will mail you one (beauty ring that is) I have a ton of them
and going back to my 1st reply -
"If you bought them at a brick and mortar vape shop they should replace that battery with no problem.
If they give you a lot of grief, and won't replace it, they probably knew there was an issue with it. Walk away, shop elsewhere."