Located in ShenZhen China, Shenzhen Royal Technology is a company dedicated to building the best in Lithium-Ion Products for the emergency power. We offer the highest quality most innovative and diverse line of Lithium-Ion Battery Products to meet the demands of all home emergency power, medical equipment backup power rescue equipment power supply, outdoor emergency power and roadside emergency power and beyond. From our portable powered generator of lightweight high-power Lithium-Ion batteries for home emergency power use medical equipment backup power, rescue equipment power supply and more we are the lithium-ion battery power products specialists. We offer portable powered generator of 100W^ 150W 300W and the emergency oriented compatible models in the most compact and powerful power generators. Additionally, we offer our powered generator in drop-in fit OEM sizes as well as our Small Case ultra compact models for most all home appliances and other portable equipments. When you purchase Royal portable powered generator you are getting the highest quality available a product built and designed here. From everyday use to emergency power use we do not cut corners nor use inferior battery cells in order to make safety power product. We are the trusted source for high quality portable powered generator.