Photonic Universe ▶ DuoRacer Series 10A Dual Battery MPPT Solar Charge Controller Model: DM1024 | 12V/24V Auto | Up to 260W Solar Input The Photonic Universe DM1024 is a high-efficiency 10A dual battery MPPT solar charge controller designed for 12V or 24V battery systems. This advanced controller intelligently manages solar power from panels up to 130W (12V system) or 260W (24V system), ensuring optimal charging for two independent battery banks. It is an ideal solution for campervans, motorhomes, boats, and other off-grid setups requiring simultaneous charging of a main (leisure) battery and a secondary (starter) battery. Utilising Maximum Power Point Tracking (MPPT) technology, the DM1024 maximises energy harvest from your solar panels, significantly outperforming traditional PWM controllers. It features a wide solar input voltage range, accommodating various panel configurations up to 60V. The integrated LCD provides real-time monitoring of charging parameters, battery status, and accumulated energy, offering comprehensive control over your solar power system. DUAL BATTERY FOCUS: Charges a main battery with high power and provides a trickle charge of up to 1A for a secondary battery, keeping both topped up. Key Features ▶ MPPT Technology — Ensures >95% efficiency for maximum solar energy harvest. ▶ Dual Battery Charging — Optimises power distribution between two independent battery banks. ▶ Auto 12V/24V System — Automatically detects and adapts to your battery system voltage. ▶ Wide PV Input — Compatible with solar panels up to 60V, allowing flexible array configurations. ▶ LCD Display — Provides real-time monitoring of essential system parameters. ▶ Advanced Battery Compatibility — Supports Gel, AGM, Flooded, and Lithium (LiFePO4, Li-NiCoMn) for the main battery. ▶ IP33 Water Resistance — Offers protection against water sprays when correctly installed. ▶ Remote Meter Compatible — Connects to optional MT11 remote display for enhanced control and monitoring. Technical Specifications Parameter Value System Voltage 12V / 24V Auto Rated Charge Current 10A Max. PV Input Power (12V) 130W Max. PV Input Power (24V) 260W Max. PV Open Circuit Voltage 60V MPPT Tracking Efficiency >95% Battery 1 Compatibility Gel, AGM, Flooded, LiFePO4, Li-NiCoMn Battery 2 Compatibility Lead-Acid (Trickle Charge up to 1A) Communication Port RS485 Grounding Negative Common Ground Self-Consumption <12mA Working Temperature -30°C to +80°C Dimensions (L x W x H) 227.2 x 143 x 58.1 mm Weight 0.8 kg Charging & Battery Modes The DM1024 controller employs an advanced MPPT control algorithm for ultra-fast tracking of the maximum power point, ensuring optimal energy harvest from your solar array. It supports a broad range of battery types for the main battery (BATT1) including Gel, AGM, Flooded, LiFePO4, and Li-NiCoMn, with user-selectable settings via the LCD. The secondary battery (BATT2), typically a starter battery, is automatically recognised and trickle charged up to 1A, primarily supporting lead-acid types. The controller features a current limiting function at 10A, allowing for future expansion of your solar panel array without overloading the system. An integrated temperature sensor provides automatic compensation for lead-acid batteries and low-temperature protection for lithium batteries, ensuring safe and efficient charging across varying environmental conditions. Typical Applications Application Description Campervans & Motorhomes Efficiently charges leisure batteries while maintaining the starter battery, ideal for mobile living. Boats & Marine Systems Manages power for service batteries and engine start batteries in marine environments. Off-Grid Cabins & Sheds Provides reliable power management for remote installations with dual battery requirements. Small Commercial Vehicles Supports auxiliary power systems in work vans or utility vehicles needing separate battery charging. Built-In Protection Functions The Photonic Universe DM1024 controller incorporates a comprehensive suite of electronic protection features to safeguard your solar system and batteries. These include protection against reverse current at night (from battery to solar panel) • over-charging • short circuit • reverse polarity • over-voltage • over-discharge. The robust design and IP33 water-resistant casing provide reliable operation and peace of mind. Common Questions Can this controller charge a 12V and a 24V battery simultaneously? No, both battery banks connected to this controller must have the same rated voltage (either both 12V or both 24V). What types of batteries are compatible with this controller? For the main battery (BATT1), it is compatible with Gel, AGM, Lead-Acid Flooded, and Lithium (LiFePO4 or Li-NiCoMn) batteries. The secondary battery (BATT2) is primarily for lead-acid types. Can I use this controller with only one battery? Yes, the controller can operate with a single battery, diverting 100% of the charging current to it. A second battery can be added later if needed. Is a remote display available for this controller? Yes, the DM1024 is compatible with the optional Photonic Universe MT11 remote meter, which provides extended monitoring and parameter adjustment capabilities. Installation Notes Always connect batteries to the controller first before connecting solar panels. Disconnect in reverse order. Ensure all connections are tight to prevent overheating. Install inline fuses on the negative wire close to the batteries for added protection. Mount the controller in a well-ventilated area, away from direct sunlight and potential water ingress. A detailed user manual explaining wiring and operations is included with the product. Before You Buy Verify your battery system voltage (12V or 24V) matches the controller's auto-detection capability. Confirm your total solar panel power does not exceed 130W (for 12V systems) or 260W (for 24V systems). Ensure your solar panel open-circuit voltage (Voc) does not exceed 60V. Note that the two battery banks must have the same rated voltage. Consider an optional remote temperature sensor for more precise battery temperature measurement if the controller and battery are in different thermal environments. Please verify all specifications and compatibility requirements before purchase. This product is covered by a 1-year manufacturer warranty. Specifications are subject to change by the manufacturer.
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