Battery capacity :ST-9624C Advanced version :2 *2000mAh lithium batteries - LCD display Working voltage :7.4v/12v dual voltage Working current :≤6A Maximum atmospheric pressure: Actual maximum pressure 110PSI Accuracy :±1.5psi Air volume :15L/min Continuous working time :8-10min, Time: Lithium battery full charge working time: about 20min full charge can play 2 tires 195/65R15 0~30psi Inflation time :8-9min Type-C charging cable: about 80mm, Charging time :5-6h Usage time :15min Length of air hose :100mm+10mm