What is a MPPT charge controller? This section discusses the theory and operation of "maximum power point tracking" used in solar charge controllers. A MPPT, or maximum power tracker, is a DC-DC electronic converter that optimizes the correspondence between the solar panel (photovoltaic panels) and the battery bank or the distribution network. Simply put, they convert a higher voltage DC output fr...

How do solar charge controllers work? Solar charge controllers are specified in both current and voltage. You will need one that can withstand the voltage of your solar panel, and then transmit it to the battery pack voltage (typically 12, 24 or 48VDC). Next, you will need to make sure that the solar charge controller has enough capacity to handle the current (in amperes) coming from your solar pa...