Programmable to Charge Battery Voltages from 12 VDC to 60 VDC. Advanced Continuous Maximum Power Point Tracking Increases PV Array Output by up to 30%. Backlit 80 character-display shows the current operational status. Input PV voltages up to 150VDC open circuit for charging battery banks from 12-60VDC. Gets more amp hours from your solar panels into your batteries everyday.