Sweet ripe blueberry. The Elf Bar Prime 1800 is a compact disposable delivering up to 1,800 puffs from 2 mL of 20 mg/mL salt nicotine e-liquid, with a mesh coil, two power modes (Eco 7.5W and Turbo 11W) and an e-liquid indicator. Pre-charged and single-use — no charging needed.