Energy brick is a new type of solar energy storage system. Energy storage is configured differently depending on the needs of the home. The battery capacity is 5.28KWH to 18.4KWH, among which the most suitable for home use is the 10kwh rechargeable PowerSun lithium battery. Compared with the Powerwall series, the vertical lithium battery storage system does not need a wall hanging. On the top of the battery system, it is a central control system. It monitors the charge and discharge status of each battery. The central control system keeps the input and output stable. PowerSun is ideal for home use, green solar energy, saving on electricity bills and providing backup power. PowerSun is a great battery storage system.