High Performance: This battery-powered air pump has a maximum pressure of 150 PSI. Its powerful motor generates 25 liters of air per minute. It can inflate a car tire (195/55R15) from 0 to 2.48 bar in just 4 minutes and 30 seconds, or a road bike tire (700x28C) from 0 to 120 PSI in just 4 minutes and 13 seconds. Versatile Applications: This battery-powered air pump comes with 4 accessories (US valve, French valve, needle valve, and nozzle) and 4 pressure units (Psi, Bar, Kpa, Kg/cm). Simply connect the pump to the tire for accurate tire pressure measurement. Smart Inflation: Set the desired tire pressure before use. The battery-powered air pump automatically shuts off when the preset pressure is reached to prevent over-inflation. Easy to Use: This electric air pump features a large screen that is easy to read even at night or in sunlight. Additionally, a flashlight is included on top for convenient use at night. High-Capacity Battery: This electric bicycle pump has a built-in 4000 mAh lithium battery that can be charged via a Type-C interface. A full charge can inflate 2.5-inch 175/55R15 tires (0-36PSI), 7-inch 700x28c tires (0-100PSI), 24-inch mountain bike tires (0-45PSI), or 10-inch motorcycle tires.