We use VRLA (Valve Regulated Lead Acid) gel batteries as standard, which are connected serially. The capacity of the batteries 12V /2101h (C20) corresponds to a current of 10.5A/h per battery unit. The battery storage can be connected in series as required and converted to 220V/50Hz, i.e. household current, by means of an inverter.
We use this battery storage for "free" refueling of electric cars. Here, the electricity generated by our E-CARPORT is temporarily stored during the day and can be used at night to refuel an e-car.
There are nine photovoltaic modules on the roof surface of our E-CARPORT. These modules generate 12V direct current, which is temporarily stored in our battery storage. In addition, our intelligent inverters are used to charge the battery storage and automatically switch to 220V when the electric car is charged. Thus, up to 3.7kW per hour can be charged into the electric car via our wallbox.