The tire inflator equipped with a high-performance chip that offers 3 preset inflation modes, will escort your journey. With a maximum pressure capacity of 160 PSI(3-160 adjustable) and an airflow rate of 30L/Min, this air compressor only takes approximately 1min to refill the tire from 28 to 35 PSI, Our air pump for car built in rechargeable 3PCS 2500mAh batteries, this portable tire inflator for car does not require an external power supply while working. Just fully charge the appliance for 4 hours and it can work continuously for 30 minutes, providing you with ample time to inflate your tires or other items. The electric air pump features an upgraded dual-power design, the portable air compressor provides you with flexibility and convenience. In cordless mode, you can rely on the built-in rechargeable battery to inflate, which allows you to use it without a direct power source or any cords. However, in case of the battery runs out, you can connect the air compressor for car to your car’s power supply with a 9.8 ft DC 12V power cord for on-the-go travel.