Power storage brick is a battery that stores energy, detects outages and automatically becomes your home's energy source when the grid goes down. Unlike gasoline generators, Power storage brick keeps your lights on and phones charged without upkeep, fuel or noise. Pair with solar and recharge with sunlight to keep your appliances running for days. Power storage brick reduces your reliance on the grid by storing your solar energy forPower storage brick is a battery that stores energy, detects outages and automatically becomes your home's energy source when the grid goes down. Available both wall mounted design and brick ground laying design! Suggest parrallel connection / brick on grid with 6 units max for 30KWH system 51.2V