Morningstar SunSaver Duo 25A PWM Charge Controller with Remote Meter

The Morningstar SunSaver Duo (SSD-25RM) is a 25A PWM charge controller designed for dual-battery 12V systems, using 4-stage series charging (bulk, PWM, float, equalize). Built for RVs, boats, and off-grid installations, it maintains two independent battery banks with selectable charging priority. Housed in an anodized aluminum case with epoxy encapsulation and RS232/RS485 communication, it ships with a remote meter for real-time monitoring and system control.

Key Features:

• 25 A PWM charge controller, 12V battery charging
• Max PV input voltage 30 VDC
• 4-stage series charging: bulk, PWM, float, equalize
• Battery priority 100%/0%, 90%/10%, or 50%/50%
• Regulation 14.1V sealed / 14.4V flooded, float 13.7V
• Equalization 14.8V, temp compensation -30 mV per °C
• RS232 and RS485 communication
• Operating temperature -40°F to 113°F
• Remote meter with 10 m / 33 ft wire
• CE, REACH, RoHS certified, 5-year warranty

Ideal for dual-battery setups in RVs, marine vessels, and remote off-grid sites where two independent banks must be charged from one solar array. The included remote meter, with push-button backlight and 3 in round mounting hole, integrates for convenient monitoring and adjustable charging priority. Order the SSD-25RM (also listed as SSD25RM) from Circuit Solar, in stock in Canada and shipped from Red Deer, AB.