Hi all, I'm using an eGo-T battery setup with aspire small plastic clear tank. I'm using 18-24mg nic. Every time I turn around I'm replacing the coil or battery. Am I using the wrong setup or supplier? The store I got it from has few customers at this time (just starting bus.) They top off the charge weekly so cust don't need to wait for charging to use. The batts only last about a month before needing replacement. What should I do? Thanks, Patience