Scientific paper ID 2534 : 2024/3

The charger is designed for charging stationary batteries type: AGM, VRLA up to 150Ah in a string of 48V or two of 24V. There is an option for fast and standard charging, with standard charging being the priority. The charger has the ability to carry out a charge both from the power grid and from solar panels, with the panels having priority and in case of insufficient illumination of the panels, it can compensate for the lack of power from the grid. The charger is equipped with a device for measuring the consumed of power, current and voltage in real time. The outputs are equipped with digital volt and ammeters that monitor the current parameters of the output DC circuit. The case is made of 4 mm aluminum, which provides strength, low weight of the device and helps to cool the transformers and final transistors. For cases of increased ambient temperature, active cooling is provided, which is activated automatically and operates at two levels.