Morningstar SunSaver Duo is an advanced PWM two battery controller for RVs, caravans, boats and cottages. Designed for 25 amps at 12 volts DC, at the same time calculate this product of two separate batteries and isolated as a “house” and an engine battery, based on user selectable priorities.

Warranty

• 5 years

Model Numbers

• SSD-25RM, SSD-25

Key Features and Benefits

• Two battery charging
• offers more system information
• Lower cost
• Easy installation
• Longer battery life
• Extensive Electronic Protections
• Highly Reliable
• estimated 15-year life
• Product Specifications | Download

Electrical
Rated Solar Input	25 amps
Rated Load Output	Not applicable
Battery Voltage	12 volts
Min. Battery Voltage	1 volt
Max. Battery Voltage	15 volts
Max. Solar Voltage	30 volts
Self Consumption: Controller	6 to 10 milliamps
Self Consumption: Remote meter	6 to 15 milliamps
Environmental
Operating Ambient Temperature: Controller	–40C to +45C / –40F to +113F
Operating Ambient Temperature: Meter	–20C to +60C / –4F to +140F
Humidity	100% non-condensing
Tropicalization: Controller	Epoxy encapsulation Anodized aluminum case Corrosion resistant terminals
Tropicalization: Meter	Conformal coated printed circuit board
Battery Charging
Regulation Voltage: Sealed Battery	14.1 volts (at 25C, 77F)
Regulation Voltage: Flooded Battery	14.4 volts (at 25C, 77F)
Float Voltage	13.7 volts
Equalization Voltage*	14.8 volts
Temp. Compensation	—30 millivolts per C (25C reference)
Type of Charging	Series PWM 4 stage: bulk, PWM, float,and equalize**used on flooded battery only
Battery Charging Priority	90% / 10% 50% / 50% Customize via PC connection
Mechanical
Controller	17.0 x 5.6 x 4.1 cm / 6.7 x 2.2 x 1.6 in.
Meter	9.7 x 9.7 x 3.1 cm / 3.8 x 3.8 x 1.2 in.
Meter back	7.4 cm / 2.9 in. diameter 2.8 cm / 1.1 in. deep Fits 7.6 cm / 3 in. round hole
Weight: Controller	340 g / 0.75 lb
Weight: Meter	135 g / 0.30 lb
Largest wire	16 mm2 (#6 AWG)
Meter wire	10 m / 33 ft
Certifications	CE CompliantManufactured in a certified ISO 9001 facility