Other standard features include a low maintenance battery, hi-tech inverter circuitry that provides ultraclean electrical power for sensitive electronic equipment, Eco-Throttle® that continuously matches engine speed to electrical load — offering excellent efficiency with up to 20 hours continuous running time, with reduced noise and vibration. There’s also convenient circuit-breaker construction, internal circuit protection built into the inverter, one-lever, on/off ignition and fuel control, and a large 13 liter tank that gives 7.2 hours continuous operation at rated load, 20 hours of continuous operation at 25% load.