PHOTONIC UNIVERSE DUAL BATTERY SERIES 10A Dual Battery Solar Charge Controller & Regulator PWM Technology | Auto 12V/24V Detection | For Engine & Leisure Batteries The Photonic Universe 10A Dual Battery Solar Charge Controller (Model DB1024) is an intelligent PWM solution designed to efficiently manage solar charging for two independent 12V or 24V battery systems simultaneously. Ideal for mobile and off-grid applications, this solar regulator ensures both your primary (e.g., engine) and auxiliary (e.g., leisure) batteries receive optimal charge, extending their lifespan and ensuring reliable power wherever you go. Utilising advanced Pulse Width Modulation (PWM) technology, the DB1024 enhances battery charge acceptance and can even help recover some lost battery capacity over time. It automatically detects system voltage (12V or 24V) and intelligently prioritises charging, or directs 100% of current to a single battery if only one is connected. BUYER NOTE: This controller is designed for lead-acid battery types (sealed, gel, flooded) and requires both batteries in a dual setup to be the same voltage (12V or 24V). Key Features ▶ Dual Battery Management — Charges two independent 12V or 24V batteries simultaneously. ▶ PWM Charging Technology — Advanced Pulse Width Modulation for efficient charging and extended battery life. ▶ Auto Voltage Detection — Automatically identifies 12V or 24V system voltage. ▶ Flexible Charging Priority — Allows setting power distribution between batteries (e.g., 80/20 split). ▶ Comprehensive Protection — Built-in safeguards against overcharge, short circuit, reverse polarity, and reverse current. ▶ Temperature Compensation — Integrated sensor adjusts charging parameters based on ambient temperature. ▶ LED Indicators — Clear LEDs display battery state of charge for easy monitoring. ▶ Remote Meter Port — RJ-45 socket for optional external LCD display (not included). Technical Specifications Parameter Value Rated Charge Current: 10A System Voltage: 12V / 24V Auto-Select Max. Solar Input Power (12V): 160W Max. Solar Input Power (24V): 320W Max. Solar Input Voltage (12V): 30V Max. Solar Input Voltage (24V): 55V Battery Type Selection: Sealed, Gel, Flooded Self-Consumption: 4mA (night), 10mA (charging) Working Temperature: -35°C to +55°C Terminals: 3 pairs, up to 4.0mm² wire Dimensions (L x W x H): 15.5 x 7.6 x 4.0 cm Weight: 185 g Charging & Battery Modes Mode/Feature Description Smart Dual Charging Charges two batteries simultaneously, ideal for engine and leisure batteries. Once one battery is full, all current is automatically directed to the other. Adjustable Priority Allows setting a charging priority, e.g., 80% to the engine battery and 20% to the leisure battery. Single Battery Operation If only one battery is connected, the controller automatically detects it and directs 100% of the charging current to that battery. Battery Type Selection User-selectable settings for Sealed, Gel, or Flooded lead-acid batteries to optimise charging. Typical Applications Application Description Caravans & Campervans Manages charging for both engine start and leisure batteries, ensuring power for appliances and vehicle starting. Boats & Marine Vessels Keeps service batteries charged for navigation and onboard electronics, while maintaining the engine start battery. Small Off-Grid Systems Suitable for small off-grid setups requiring power for two separate lead-acid battery banks. Built-In Protection Functions The Photonic Universe DB1024 controller includes multiple essential protection features to safeguard your solar system and batteries: Reverse Current Protection • Overcharge Protection • Short Circuit Protection • Reverse Polarity Protection. Common Questions Can this controller charge just one battery? Yes, absolutely. The controller will automatically detect if only one battery is connected and will direct 100% of the charging current to it. You can add a second battery later if needed. What types of batteries are compatible? This controller is compatible with Sealed, Gel, and Flooded lead-acid batteries. The battery type setting applies to Battery 1, and Battery 2 is assumed to be the same type. Can I connect a remote display? Yes, the controller features an RJ-45 socket for connecting an optional remote LCD meter (not included). This allows for advanced monitoring of charging parameters. Is an external temperature sensor necessary? The controller has a built-in temperature sensor. However, an external remote temperature sensor (sold separately) is recommended if the controller is positioned far from the battery or if the battery and controller are exposed to significantly different ambient temperatures. Installation Notes Ensure all wiring connections are secure and correctly polarised for optimal performance and safety. The controller features three pairs of terminals for easy connection of solar input, battery 1, and battery 2. It is recommended to connect the batteries to the controller first, followed by the solar panel. Always consult the detailed instruction manual for specific wiring diagrams and safety precautions. Before You Buy Verify that your solar panel's maximum power and voltage ratings are within the controller's specifications (160W/30V for 12V systems, 320W/55V for 24V systems). Confirm that your batteries are of the compatible lead-acid types (Sealed, Gel, or Flooded). Ensure both batteries in a dual setup are the same nominal voltage (12V or 24V). Please verify all specifications and compatibility requirements before purchase. Product specifications are subject to change by the manufacturer. This product comes with a 1-year warranty.
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