EP Solar made 40Amp MPPT Charge Controller. Good for use on 12v or 24v battery banks. This controller has a maximum charge current of 40amps. This controller has a maximum input voltage of 100vDC. Features an LCD display for reading input and output voltages, input and output amperage, load watts and amps. This controller has MPPT technology that provides up to an additional 33% power production.
For example, a 300w panel with this controller can charge your battery with 400w of power.