What are Cartomizer Refill Tips - Nicotine Filters? The Free2light Cartomizer tip is one piece filter which combines a disposable atomizer and a high capacity electronic battery. Cartomizers supply a larger volume of vaporized 'mist' and offer a more realistic smoking experience. Each Cartomizer lasts around 6 x times longer than regular e-cigarette cartridges on the market. All our electronic cigarette kits come with cartomizers! They are not refillable so you do not have to mess around filling them up, just dispose of the old one and screw a new one on to the battery. Its as simple as that, it takes about 12 seconds to replace. We recommend having more than one battery and then you will always have one spare and charged ready to use with your Free2light E Cig kit