Morningstar TS-MPPT-60-600V-48-DB Charge Controller 60 AMP 600 VDC Open Circuit Variable Voltage Controller. MPPT Advanced power point tracking features smat tracking which maximizes the energy harvest from the solar source with an algorithm and provides load control to not overcharge the batteries. Fully adjustable and programmable. Provides power boost, maximizes energy, longer battery life with load control. Optional remote meter adn battery temp. sensor sold separatly. 5 year warranty. Inludes pre-wired Disconnect Box acceptable for use with positive ground or negative ground systems. Up to 600 open circuit voltage solar or wind to charge 48 VDC battery systems. Charges batteries, remote communication, data logging, adjustable and metering. True Ethernet enabled functionality. No (LVD) low voltage disconnect.