No Gas/Fuel is Required. Battery can be charged and discharged about five hundreds of times. Standard USB 2.0 interface, can be charged by computer or other device which support DC5V The charging time is about 2 hours Windproof and works under any weather condition. A USB Charging Cable Is Included.(1 x Rechargeable Lighter & 1 x USB Cable & 1x Gift Box) Excellent Gift Item or Personal Collection and Souvenir! Product size: 73.5*36.5*13mm Unit weight:99g Report incorrect product information.