This electronic cigarette starter kit contains 650 MAh Battery giving up to 600 puffs per charge High capacity long life span of up to 300 recharges. Ce4 Clearomizer - Enabling clear view of the amount of e-liquid remaining. Easy to refill, wash and clean, Inexpensive to maintain. 1 x USB Charger Instructions included Important Charging Information: To avoid the battery overheating only charge for 2-3 hours maximum. Do not leave the battery on charge overnight or unattended.