This is a little air pump that CAN! I read through the reviews and dared to compare positive and negative and so far I am completely satisfied. I have a 100psi electric pancake pump from another tool manufacturer and it has NEVER inflated my 12" trailer tires to the recommended 80psi. I set this pump to 80psi, stood back, watched and waited and it pumped up both tires. to that level in just minutes! One tire was only 11psi and the other was 25psi. Risk of blowing a fuse in my car via the cigarette lighter or socket.