BUILT IN MPPT SOLAR REGULATOR
Additionally, the D250SE can be connected directly to solar panels and has a built-in Maximum Power Point Tracker (MPPT) regulator to ensure that maximum power is generated from the solar panel. The D250SE can also deliver a maintenance charge to the starter battery from a solar panel or the service battery. Smart alternator compatible, the D250SE will still operate even if the smart alternator has shut off.