Ultraflex Group

sunsaver duo charge controller for two battery banks with remote control panel

SunSaver DUO™ PWM charge controllers Charge controllers Electrical equipments

SunSaver DUO™ PWM charge controllers

Morningstar’s SunSaver DUO™ is an advanced PWM two battery controller for RV’s, caravans, boats and cottages.


• 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.

• Highly reliable: Epoxy encapsulation protects the controller against dust and high humidity. Electronic protections: solar short circuit, solar over current and reverse polarity.

• User adjustable: trough a DIP switch, the user may change controller´s parameters. Further customization is possible by connecting to a computer using the PC software Morningstar.


Temperature range: -40°C to +45°C
• Largest wire: 16 mm² / 6 AWG
• Dimensions: 17,0 x 5,6 x 4,1 cm
• Weight: 0,26 kg
• Certifications: CE
• WARRANTY: 5 years

SunSaver DUO™


 Rated solar current 25A
 Rated output current* none
 System voltage 12 VDC

* There is no load connection on the SunSaver Duo™

Part No. Model Description Dimensions
66129C SSD-25RM 25A charge controller for two batteries 17,0 x 5,6 x 4,1 cm