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Sun Saver Duo Solar regulator

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Sun Saver Duo Solar regulator

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Morningstar

Description

Morningstar SunSaver Duo – Dual Battery PWM Controller

The SunSaver Duo is an advanced PWM controller designed to charge and manage two separate batteries simultaneously—ideal for RVs, caravans, boats, and remote cottages. It can prioritize charging between a “house” battery and an engine/start battery, based on user settings.

Built on Morningstar’s proven SunSaver technology, the Duo delivers outstanding reliability, long-term durability, and improved battery performance trusted worldwide in solar applications.

The controller comes with a backlit remote meter (surface or flush-mountable) that displays clear digital and graphical system information. It is epoxy encapsulated for maximum environmental protection and can be configured via DIP switches, PC connection, or with an optional remote temperature sensor for precise charging.

Key Features

  • Simultaneous charging of two independent batteries

  • User-selectable charging priorities

  • Backlit remote meter with digital and pictorial system status

  • Simple, low-cost installation

  • Extended battery life through advanced PWM charging

  • Full electronic protections for safe operation

  • Rugged design with epoxy encapsulation for harsh environments

  • High reliability with an estimated 15-year service life

     

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