Recently bought this pump and used it on 3 different bikes. It was very easy to set the required psi for each bike as they were all different. We all liked how the pump gave us tire pressure when plugged in. Each time the pump was primed and shut off when the set pressure was reached, which took less than 2 minutes. I got home and plugged it in with the included charging cable and the lights came on as advertised; first red, then green when fully charged. The unit isn't heavy and easily fits in a large saddlebag where I carry a towel and wrench. I carry it in my car just in case my car tire needs air when the temperature changes as I live in New York and it's not easy to find larger air pumps and if you do you'll have to for it pay! I definitely recommend this product.