Morningstar ProStar PS-15M: Professional Regulation with High-Resolution Monitoring

The Morningstar ProStar PS-15M takes the industry’s most reliable mid-range PWM controller and adds a high-resolution integrated digital display. This "M" version allows you to monitor battery voltage, solar charging current, and load consumption in real-time, eliminating the guesswork from your off-grid system. Whether you are managing a remote telecom site, a vacation cabin, or a mobile solar kit, the PS-15M provides the visibility needed to ensure your batteries stay healthy and fully charged.

Beyond the display, the PS-15M features advanced 256-day data logging. It records daily performance metrics, including peak voltage and amp-hours, which can be reviewed directly on the screen to troubleshoot system performance. With its "Tropicalized" design—conformal coating and marine-rated terminals—the PS-15M is built to survive extreme humidity and coastal salt air for an estimated 15-year service life.

Key Monitoring & Performance Features:

• Graphical Digital Interface: View volts, amps, and temperature simultaneously. Includes a manual disconnect button for easy system maintenance.
• Long-Term Data Logging: Review up to 256 days of performance history. Tracks solar harvest and load usage to help you optimize your battery cycles.
• Intelligent Battery Care: Selectable charging profiles for Sealed, Gel, and Flooded batteries, featuring temperature compensation to prevent overcharging.
• Full Protection Suite: 100% solid-state protection against short-circuits, overloads, and reverse polarity with automatic recovery.
• Low Electronic Noise: Meets FCC Class B specifications, making it safe for use near sensitive radio, satellite, and telecommunications equipment.
• High Temperature Operation: Massive anodized aluminum heatsink allows for full 15A output at ambient temperatures up to 60°C without cooling fans.

Technical Specifications:

Technical Tip: To get the most accurate readings on the PS-15M display, always connect the dedicated "Battery Sense" terminals. This bypasses the voltage drop in your main power cables, ensuring the display shows the true voltage at the battery terminals.