Hi, just got my starter kit, charged the battery, put the cart on and tried taking a puff. and tried, and tried.... I had to suck really hard to get it to work. It made a little crackle and pop sound when it finally did. Now I am having mixed results, sometimes I suck and suck and get a good hit, and sometimes-nothing. Is there a problem with my battery? cart? something else??
p.s. how many times can u you re-fill a blank?