• Multi-Stage DC to DC in vehicle Battery Charger • Charges your auxilary battery • Simultaneous DC and solar charging with Green Power Priority • Input Voltage - 9 to 32V DC • Output Voltage - 12V DC • Output Current - 40A (Cont) • Suits 12V/24V standard and variable voltage/smart alternators • Fully sealed, no fan for super-quiet operation • Suitable for AGM, GEL, standard lead acid, calcium and Lithium (LiFePO4) batteries