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Charge Controllers arrow Morningstar SSD-25RM SunSaver Duo with remote meter

Morningstar SSD-25RM SunSaver Duo with remote meter

Price: $187.00


This product will charge two separate and isolated batteries at the same time, such as a house and an engine battery, based on user selectable priorities.

The SunSaver Duo employs Morningstars legendary SunSaver controller technology, whose long-term track record for high reliability and improved battery charging is well-recognized in the solar industry.

SunSaver Duo is an advanced PWM two battery controller for RVs, caravans, boats and cottages.

Key Features and Benefits:

Two Battery Charging

Solar charge current is shared between the two batteries based on a user selectable priority. When one battery is fully charged, all of the charge current flows to the other battery.

Provides Useful Information

The remote meter and LEDs display system status data and any system errors. Custom icons and back lighting make the meter easy to read and understand.

Lower Cost

Two battery charging eliminates the added cost of two separate solar charging systems and the need for isolation between the batteries.

Easy to Install

The controller is installed near the batteries using the clearly labeled large wire terminals. The remote meter may be mounted in the wall or on the wall using the included frame.

Also includes the meter wiring with RJ-11 connector.

Longer Battery Life

Four stage series PWM pulse charging and temperature compensation increases the useful life of the batteries.

Extensive Electronic Protections

The controller will not be damaged by wiring mistakes during installation. There are no fuses to replace, and the controller will automatically re-set after a wiring mistake.

Highly Reliable

Epoxy encapsulation protects the controller against dust and high humidity. Efficient electronics and a conservative thermal design allow the controller to operate reliably at high temperatures. Five year warranty and estimated 15 year life

psRated Solar Input 25 ampsRated Load Output Not applicableBattery Voltage 12 voltsMin. Battery Voltage 1 voltMax. Battery Voltage 15 voltsMax. Solar Voltage 30 voltsSelf Consumptiontroller 6milliampste meter 6 to 15 milliampsOperating Ambient Temperature


 Humidity 100% non-condensing

Tropicalizatontronformal coated printed circuit boardBacklighting Push button activatedLEDs Charging statusevelDisplays Battery #1 & #2 voltagerorsSolar Short Circuit High TemperatureSolar Over Current LightningReverse Polarity Reverse Current at NightRegulation Voltagettery 14.4 volts (at 25C, 77F)Float Voltage 13.7 voltsEqualization Voltage* 14.8 voltsTemp. Compensation 30 millivolts per C(25C reference)Type of Charging Series PWM*used on flooded battery onlyBattery Chargingstomize via PC connectionController 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 cm / 3 in. round holeWeight5 g / 0.30 lbLargest wire 16 mm2 (#6 AWG)Meter wire 10 m / 33 ftRemote Temperature Sensor Measures temperatureingCE CompliantManufactured in a certified ISO 9001 facility at


Meter Displays

Electronic Protections

Battery Charging




12 volts DC



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