I just started with the ecig. I got 1 question when I put a cart on my vapor king xl and get it tight. It works but i get a lot of rushing air at base of cart at battery and I get very little vapor. I found that if I seal it off with my finger its 60% better. I quick fixed it by putting tape around it 100% better. I only purchased 1 battery and I tried several different carts and they all need a little tape. Is that how its supposed to be or is this battery a flunky?