The PD2180 is an 80 amp marine electronic converter/charger capable of charging up to three separate battery banks at the same time. It incorporates a microprocessor that constantly monitors battery voltage, then automatically selects one of four operating modes to ensure safe and fast recharge cycles. The storage mode and equalization mode of operation ensure minimal battery gas and water loss while preventing battery stratification and sulfation. All Inteli-Power chargers are designed to meet the strict requirements of the marine environment and are UL certified for safety. A digital meter displays current, voltage, operating mode, blown fuse indication and battery type. Four-stage charging system: Patented microprocessor constantly monitors battery voltage and automatically selects one of four charging modes; BOOST, NORMAL, STORAGE or EQUALIZE. 3 isolated diode outputs: Allows the converter/charger to charge three separate banks of batteries. Each output is capable of handling the full rated current of the charger. Patented Reverse Battery Protection: Prevents the converter/charger from being damaged if the batteries are accidentally connected to the charger in reverse. Surge Protection: Prevents high voltage spikes from damaging the converter/charger.