Morningstar Prostar Charge Controller MPPT 25A with Digital Meter - PS-MPPT-25-M

Morningstar Prostar Charge Controller MPPT 25A with Digital Meter - PS-MPPT-25-M

What it is. The Morningstar Prostar MPPT 25-M is a 25 amp 12/24 volt charge controller with a convenient digital meter. This little baby not only serves as a excellent MPPT solar charge controller, but also as a lighting controller using Morningstar's TrakStar Technology.

Batteries. Battery options continue to grow, and the Prostar MPPT 25-M keeps up, with detailed battery programming options that support the latest Lithium, Nickel Cadmium, and Lead Acid type batteries.

Features

• 25 A 12/24V Charge and Lighting Controller with LVD (Low Voltage Disconnect) Option
• Nominal Max Array Power: 350 W @ 12 V , 700 W @ 24 V
• Battery Voltage Range 8-35 V
• Conformally coated circuit board and corrosion resistant terminals for high reliability
• High efficiency across low, medium and high power levels
• Detailed data logging of power and load data, 190 Days
• Low noise design meets FCC Class B specs
• Automatic PV based lighting control, multi-event load control enables powerful options for PV lighting systems and setting can easily be adjusted in the field
• Industry standard MODBUS communications protocol
• High strength poly carbonate case and extruded aluminum heatsink
• Optional Accessories Include: Remote Temp Sensor (RTS), Remote Meter (RM-1), Wire Box (PS-MPPT-WB), USB Communications Adapter (UMC-1), Meter Hub (HUB-1), Relay Drive (RD-1) (See related parts to the right)
• Five Year Warranty
  

What our Expect Think

Maximum Power Point Tracking (MPPT) Efficiency – Captures up to 30% more energy than PWM controllers by dynamically adjusting to optimal solar power levels.

Digital Meter for Real-Time Monitoring – Provides instant system feedback, displaying charging status, battery voltage, and power output for easy diagnostics.

Q&A

What is the difference between MPPT and PWM?
MPPT (Maximum Power Point Tracking) controllers are more efficient than PWM (Pulse Width Modulation) controllers. MPPT controllers optimize the power coming from your solar panels, adjusting the voltage and ensuring maximum efficiency, especially under variable sunlight conditions, while PWM controllers only regulate voltage and are less efficient.

Can this controller be used with lithium batteries?
Yes, the PS-MPPT-25-M is compatible with lithium batteries, as well as flooded lead-acid, AGM, and gel batteries. The controller allows you to select the correct charging profile for each battery type.

How do I monitor my system remotely?
The PS-MPPT-25-M can be connected to Morningstar’s remote monitoring systems, such as the MS-RM-1 remote meter, to track the system’s performance from a distance. This allows you to monitor parameters and adjust settings as needed.

What is the maximum panel wattage this controller can handle?
The PS-MPPT-25-M can handle up to 150V input voltage from the solar array. The maximum wattage that can be used depends on the panel voltage and configuration. For a 12V system, the maximum wattage would be approximately 300W to 400W per panel, depending on the voltage output of the panels used.

Maintenance  Tips

• Visual Inspection: Check for physical damage, discoloration, or burn marks.
• Connection Check: Ensure all wiring is secure and properly grounded.
• Surge Indicator: Monitor LED status; replace if no longer indicating protection.
• Environmental Protection: Install in a dry, ventilated area to prevent moisture damage.
• Routine Testing: Periodically test system functionality and replace after a major surge event.