Durable & Long-lasting – The portable tire inflator is powered by a robust rechargeable battery, letting it quickly inflate up to 4 car tires (29-36 PSI) on a single charge. Its long-lasting battery ensures reliable performance anytime, without extra batteries or cords. This makes it highly convenient for camping, outdoor activities, and other situations requiring fast tire inflation. The tire inflator also doubles as an emergency power bank, providing a reliable electricity supply when you need it.