The new one should be fully charged and then used. It can't be used while charging. Long press the power on button, then press the second gear button, and then long press the power off button. Charging for 2.5 hours. Product attributes: Power cord length: unlimited Rated voltage: 5V Rated power: 120 Rated frequency: 50HZ Vacuum cleaner function: dry Dust storage type: dust box/dust bucket Vacuum cleaner style: car handheld Special nozzle type: flat nozzle Suction: 20000pa Battery: 5000mAh Specifications: Strong suction and long running time - 20000 rpm small vacuum cleaner. high-speed brushless motor provides strong cleaning power for up to about 25-30 minutes, which can quickly and deeply clean almost any small hard-to-reach places, such as car interiors, sofas, carpets, furniture, and even your keyboard! Cordless Portability- The compact and cordless design of the mini car vacuum. cleaner provides greater mobility and convenience, and is easy to carry and store. Unique Design and Practical- The stylish and compact design completely upgrades the traditional small hand-held vacuum cleaner. Can help you clean dark corners or clean at night. Indicator lights help you know when it's time to charge. The 2-in-1 crevice tool and air hose help you clean more efficiently and carefully. Dual Filtration System- The combination of 20000pa fine steel filter and HEPA filter has a removal efficiency of over 99.7% for particles smaller than 0.3 microns in diameter. Easy Maintenance- The cordless car vacuum filter and dust cup are removable and reusable, easy to clean. Package Included: 1* Charging cable 1* Instruction manual 1* Extended nozzle 1* Brush nozzle 1* Air nozzle