Construction of a small battery charger, adjustable in voltage and current, taking advantage of a recycled power supply. The adjustment and load control module is based on the XL4015 integrated circuit (Step-Down Converter), which allows to operate with maximum values of 36V and 5A. I have assembled the set in a custom made box, made with the 3D printer in PLA.
Making the box of a battery charger with PLA, may not be the most appropriate for a professional and robust finish. But as this charger I will use it occasionally and I don't care much about its appearance, I think the PLA is a good solution.
Information in spanish
With the help of an electric soldering iron, it is necessary to heat and insert M3 nuts in the PLA. Parts of the box is fixed with M3 screws of 5 mm length.