In-vehicle optimal charging and maintenance for marine and RV deep-cycle batteries. Dual Input Capability: MPPT Solar Input & Auxiliary Input. Multi-stage battery charger ensures that your batteries are charged the way battery manufacturers recommend. Small footprint, extremely compact design. Saves money by maximizing battery life. DC to DC Battery Charger. Microprocessor controlled multi-stage charging algorithms (bulk, absorption, float) for gel, flooded and AGM batteries and equalization for flooded batteries. Silent mode for quiet operation. MPPT solar regulator allows you to provide maximum power from solar panels to battery. Optional remote allows you to view system information.