If the economic argument for MPPT doesn’t stack up, perhaps it’s ability to match high voltage panels to a 12V battery will. Here I connect two 20W panels in series to produce a 72-cell 40W solar panel with a 35V max power point. Eventually, dispite the British weather’s attempts to spoil the day, I got 40W from the panels. However, the buck converter components are now getting warm, possibly even hot.
Post time: Jan-04-2017