Dimensions and Weight:15.4 x 8.9 x 11.6 inches,40 lbs.Battery type is Lithium Iron Phosphate (LiFePO4) with 48V 30Ah (1440Wh) capacity. Uninterrupted Power Supply (UPS) Mode: You can recharge your Nature's Generator Lithium 1800 and power your devices at the same time. Three Ways to Recharge Generator:You can use Solar Panels,Wind Turbine and AC Power.The recharging speed depends on the the strength of the sunlight or wind.For example: It takes about 70 minutes to recharge Nature's Generator 80% if using AC power. How to Maintain and Store: Turn off the main power and AC outlets when your Natures Generator Lithium 1800 is not in use. Recharge the generator once every six months and store it in a ventilated, cool and dry location. What You Can Get:1×1800W Nature's Generator Lithium;1×AC Power Cord;1×User Guide