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Morningstar Prostar 15M solar regulator with monitor

Prostar 15M solar charge regulatorClick to enlarge product image
Prostar 15M solar charge regulator

Prostar-15M charge controller: High quality 15A, 12/24V marine grade PWM solar regulators by Morningstar. Comes with a range of advanced features, including LED monitor.

This world-leading mid-range solar controller, now on its second generation, sets new standards for reliability and self-diagnostics, with a range of advanced features. The Prostar regulators are suitable for both 12V and 24V systems with solar panel wattage up to 225W or 450W (at 12V).

  • digital display shows current and voltage plus 9 status parameters and self-diagnostics
  • battery level indicator
  • estimated 15 year life,
  • pulse width modulation series battery charging,
  • 3-position battery select option (gel, sealed or flooded)
  • jumper to eliminate telecom noise, temperature compensation,
  • low and high voltage disconnect,
  • reverse current protection
  • high temperature disconnect.
  • approved for use in hazardous locations
  • dimensions: 153 x 105 x 55 mm; 230g.
  • rated inputs of 15A
  • 5-year warranty


Pulse width modulation (PWM) charging can double the life of a battery compared with On-Off charging, and typically sends 30% more solar energy into the battery per day. Average battery State-of-Charge is 90-95% compared to 55-60% for On-Off regulators.

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