Check the listing for details. Morningstar Sunsaver MPPT 15A SS-MPPT-15L Solar Charge Controller. Condition: New. Listed at 277.58 USD. The SunSaver MPPT is well suited for both professional and consumer PV applications including automatic lighting control. Its charging process has been optimized for long battery life and improved system performance. This product is epoxy encapsulated for environmental protection, may be adjusted by the user via four settings switches or connection to a personal computer, and has an optional remote meter and battery temperature sensor.KEY FEATURES AND BENEFITSDesigned for Harsh Environments and Hazardous Locations Around the Globe• Temperature rating of -40°C to +60°C• Ideal for Oil/Gas applications. Approved for use in hazardous locations: UL/CSA Class 1, Division 2, Groups A-D and ATEX/IECEx Zone 2, Gas Group IICMaximizes Energy HarvestOur TrakStar MPPT Technology features:• Peak efficiency of over 97%• Almost no power losses• Recognition of multiple power peaks during shading or mixed PV arrays• Excellent performance at low solar insolation levelsUse of High Voltage ModulesEnables the use of high voltage and thin film modules for off-grid battery charging.Higher Voltage PV ArraysProvides a means to use a higher voltage PV array to charge either a 12V or 24V battery.Lower System CostLess expensive than other MPPT controllers and is affordable in smaller PV systems up to 400Wp. Allows system costs to be reduced by down-sizing the PV array, using on-grid or thin film modules and decreasing cable sizes.Load ControlAutomatically disconnects loads when the battery has been discharged to a low state of charge.Personal Computer Connectivity• USB MeterBus Adapter for laptop compatibility• PC MeterBus Adapter for RS-232• Fully adjustable user selection via on-board preset switches or customized with PC connection• Advanced automatic custom programmable lighting control with a PC connection• Extensive controller and system data is provided by the status LED’s and optional meter. Monitoring is also available with a personal computer• 30 days of internal data logging of key PV system operating parametersSmaller SizeMechanical dimensions are less than other MPPT controllers, making it easier to install in equipment enclosures.Highly ReliableEfficient electronics, a conservative thermal design and tropicalization result in high reliability and long life.Extensive Electronic ProtectionsFully protected against most system errors and faults.Longer Battery LifeEfficient MPPT tracking and 4-stage charging increases battery life Versions SS-MPPT-15L Electrical Peak efficiency 97.5% Nominal battery voltage 12 or 24 volts Max. battery charging current 15 amps Battery voltage range 7-36 volts Nominal Max. Output Power / Max Recommended Solar PV Input* 12 volt battery 200W / 260W 24 volt battery 400W / 520W Max. PV open circuit voltage** 60 volts (without damage to unit) Rated load current 15 amps Self consumption 35 milliamps Transient surge protection 4 x 1500 watts Environmental Operating temperature -40°C to +60°C May derate above the following temperature = 50°C Storage temperature -55°C to +100°C Humidity 100% non-condensing Tropicalization Epoxy encapsulation conformal coating marine rated terminals Mechanical Dimensions 16.9 x 6.4 x 7.3 cm / 6.6 x 2.5 x 2.9 in Weight 0.60 kg / 1.3 lbs Power terminal 16 mm2 / #6 AWG Enclosure Die cast aluminum with plastic cover IP10, Type 1 Battery Charging Battery types Gel, Sealed, AGM, Flooded 4 Stage charging Bulk, absorption, float, equalize (optional) Temperature compensation Coefficient –5mV/°C / cell (25°C ref) Range –30°C to +60°C Set points Absorption, float, equalize