High performance: The maximum pressure of this battery-powered air pump is 150 PSI. The powerful motor produces 25 liters of airflow per minute. Inflate a car tire (195/55R15) from 0 to 2.48 bar in 4 minutes and 30 seconds, and a road bike tire (700x28C) from 0 to 120 PSI in 4 minutes and 13 seconds. Wide range of applications: This battery-powered compressor comes with 4 accessories (Schrader valve, Presta valve, needle valve, air valve) and 4 pressure units (Psi, Bar, Kpa, Kg/Cm). By connecting the pump to the tire, you can accurately measure the tire pressure. Smart inflation: The desired tire pressure can be set before use. When the preset pressure value is reached, the battery compressor automatically shuts off to prevent overinflation. Easy to use: This electric pump has a large display, which is easy to read the value on, even at night or in sunlight. In addition, we have placed a flashlight on top to provide illumination for your night work. Large battery capacity: The electric bicycle pump has a built-in 4000mAh lithium battery that charges via the Type-C port. When fully charged, it can inflate 2.5 175/55R15 tires (0-36PSI)/7 700x28c tires (0-100PSI)/24 mountain bike tires (0-45PSI)/10 motorcycle tires.