With its lightweight and portable design . the Cummins Onan P2500i inverter gasoline generator produces up to 2500 peak watts of electricity. Your phone . tablet . and other delicate devices are protected by the low total harmonic distortion (THD) power produced by the 1-gallon fuel tank . which offers 10 hours of operating life at 25% load. The generator has double-insulated housing and runs at 52 decibels . so your camping neighbors will be pleased. You may see information like voltage . fuel level . run hours remaining . power output . and lifetime run hours on the onboard LED display.