Need help making a circuit

what I want to do is use a recharchable 9 volt battery that I can charge using a usb port and a steady output of five volts how and will this work and will it have a good battery life before it needs recharged


Usually it is easier to step down DC than up, so you may find it easier to use 4 x AA rechargeables in series with small fixed voltage regulator chip. Plus the 4 AAs would have a larger capacity than a PP3.