MPPT Epever DuoRacer DR2210N-DDS 20A Dual Battery

The DuoRacer 20A MPPT Dual-Battery Solar Charge Controller powers two batteries at once in a solar system, a perfect fit for RVs, campers, and boats. BATT1 voltage is set manually via the LED/LCD interface, while BATT2 voltage is automatically detected for seamless operation.

• Dual-battery MPPT control charges BATT1 (main) and BATT2 (starter) in a single system; BATT1 supports Sealed, Gel, Flooded, LiFePO4, and Li-NiCoMn, while BATT2 is lead-acid only.
• PV input up to 100V open-circuit with ultra-fast MPPT a guaranteed ≥99.5% efficiency; wide MPPT range maximizes PV module utilization and boosts energy harvest by 20–30% versus PWM.
• Auto-control for BATT1 charging power and current limit with a three-stage charging profile (Bulk, Absorption, Float) for optimal battery health.
• Adaptive digital control enhances BATT1 life; automatic temperature compensation applies to lead-acid BATT2 for safer charging in varying conditions.
• Robust protection with IP33 protection and safeguards including overcharge, over-discharge, reverse polarity of PV and battery, PV reverse polarity, and additional battery protections.
• Electrical specs include nominal 12/24V operation; BATT1 charging up to 20A; configurable full/float voltages for 12/24V systems and 24V×2 setups (9–17V range).
• BATT2 specifics include full/return voltages at 13.8/12V or 27.6/24V with adjustable 9–17V; BATT2 voltage auto-detection; Common Negative System.
• Interfaces and display offer LED/LCD or MT11 remote meter; optional DDB or DDS display units; RS485 for Modbus communication.
• Terminals and mounting provide PV, BATT1, BATT2, Ground, RS485, remote temperature sensor, AES (signal) port; mounting holes are Φ5 mm with a Common Negative configuration.
• AES control signal supports auxiliary loads (e.g., car refrigerators, boat systems) and is part of the DuoRacer series for flexible energy management.

Designed for mobile life, the DuoRacer delivers efficient, safe dual-battery charging with broad chemistry support and versatile display options. It maximizes PV utilization, protects batteries, and offers practical load management features for reliable off-grid operation on road or water.