High performance: This battery air pump has a maximum pressure of 150 PSI. The powerful motor generates an air flow of 25 liters per minute. Inflates a car tire (195/55R15) from 0 to 2.48 bar in 4 minutes and 30 seconds and a racing bike tire (700x28C) from 0 to 120 PSI in 4 minutes and 13 seconds. Wide range of uses: This battery compressor comes with 4 accessories (Schrader valve, Presta valve, needle valve, air valves) and 4 pressure units (PSI, Bar, Kpa, Kg/Cm²). By connecting the inflator to the tire, you can measure the tire pressure accurately. Intelligent inflation: You can set the desired tire pressure before use. When the preset pressure value is reached, the battery compressor will shut off automatically to avoid over-inflation. Easy to use: This electric pump has a large display on which the values are easy to read, even at night or in sunlight. Additionally, a flashlight is included on the top to provide light for nighttime use. Large capacity battery: The electric bicycle pump has a built-in 4000mAh lithium battery and is charged via a Type-C port. When fully charged, it can inflate 2.5 car tires (175/55R15, 0-36 PSI), 7 road bike tires (700x28c, 0-100 PSI), 24 mountain bike tires (0-45 PSI), or 10 motorcycle tires.