Kaari lighters work with electricity and the battery capacity of this Roihu X2 model is 430mAh. Kaari plasma lighters create a 1100 ºC double plasma arc between the ignition tips by pressing a button, making for easy lighting. The Kaari does not go out in wind or rain. In this model, the position of the arch in relation to the grip is optimized. - Up to 120 ignitions on a single charge - Charging via USB connection: a charging cable is included - Metal covers and a cover protecting the lighter tips - LED elements on the front indicate the battery charge Note! Like other battery operated appliances, your Kaari lighter loses considerable amounts of capacity in cold conditions. Keeping your Kaari lighter in your pocket to keep its battery warm is a wise choice.