Energy Products, Projects and Devices Design Geneverse FAM Energy Storage Device by Shenzhen Hello Tech Energy Co.,Ltd It can be connected to the mains power supply system to store the electrical energy when the power supply is sufficient, so that it can be used during tight power supply periods. The output power of the product is as high as 3000W, which can adapt to most household appliances. The large capacity of 6000Wh can meet the family's electricity demand for several days when the grid is out of power.