Meet the S3 Solar Charge Controller: High-Performance Power Management for 12V Systems

Power up your 12V solar system with the S3 Solar Charge Controller, designed for users who demand efficient, reliable, and sustainable energy solutions. 

Key Features

• 5-Year Warranty: Trust in long-lasting durability and dependable performance.
• Automatic Night-Time Shutdown: Reduces power consumption by automatically powering down when the sun sets.
• 3-Stage PWM Charging: Maximizes battery efficiency through intelligent bulk, absorption, and float charging stages.
• Temperature Compensation: Automatically adjusts charging to protect against extreme temperatures.
• Encapsulated in Epoxy Potting: Completely sealed for maximum protection against the elements.
• Eco-Friendly Manufacturing: Built using solar power, for a sustainable solution.
• North American Design & Craftsmanship: Built with precision to meet the highest quality standards.

General Specifications

• Operating Temperature: -40°C to 50°C / -40°F to 120°F
  Reliable in the harshest conditions.
• Weight: 50 g / 2 oz., designed for portability and ease of installation.
• Dimensions: Compact at 3.8 x 7.0 x 3.1 cm (1.5 x 2.75 x 1.3 in.).
• Case Material: Sealed ABS case, fully protected in epoxy for long-lasting durability.
• Wire Leads: 18 AWG, 15 cm (6 in.) for easy connection.
• Smart Solar LED Indicator:
  • 3 flashes: Charging
  • 2 flashes: Bulk Voltage achieved
  • 1 flash: Float Mode activated

Electrical Specifications

• Voltage Configurations: 12V 
• Minimal Power Consumption:
  • 0.2 mA at night
  • 0.6 mA in daytime standby
  • 2.5 mA during charging
• Maximum Input Voltage:
  • 25V (12V control)
    
• Maximum Charging Current: 3 Amps DC for fast and reliable charging.
• Typical Charging Set Points:
  • Bulk Charge: 14.4V
  • Float Charge: 13.6V
  • Custom voltages available on request.

Customizable Options

• Disable temperature compensation for specific needs.
• Custom voltage setpoints to tailor your system.
• Extended wire lead lengths for more flexibility.
• Lithium Battery Protection: Optional protection to ensure safe charging in low temperatures (no charging below 4°C).