ECO-WORTHY 40A DC-to-DC Charger with 550W MPPT Solar Controller, 12V Dual Battery Charger for RV & Marine
Product Description
The ECO-WORTHY 40A DC-to-DC Charger with MPPT is an all-in-one charging solution designed for RVs, campervans, and boats. This dual-input charger allows you to charge your auxiliary (leisure) battery from both the vehicle's alternator while driving and from solar panels when parked.
By combining a DC-DC charger and an MPPT solar controller into a single unit, it simplifies your wiring and ensures your battery bank—whether Lithium or Lead-Acid—is always maintained at its optimal charge level.
Key Features
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Dual Input Charging: Simultaneously or independently utilizes power from the vehicle alternator and solar panels to charge your house battery.
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Built-in MPPT Solar Controller: Features Maximum Power Point Tracking with up to 99% efficiency, allowing for up to 550W of solar input.
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Multi-Stage Charging: Employs a sophisticated charging algorithm (Bulk, Boost, Float) to maximize battery life and ensure a 100% state of charge.
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Broad Battery Compatibility: Pre-configured profiles for LiFePO4 (Lithium), AGM, Gel, Flooded, and Sealed Lead-Acid batteries.
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Smart Alternator Compatible: Designed to work seamlessly with modern Euro 6 smart alternators, ensuring stable voltage regardless of the vehicle's engine management.
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Comprehensive Protection: Integrated safety features protect against over-voltage, over-temperature, reverse polarity, and solar back-charging.
Technical Specifications
| Specification | Details |
| Max. Charge Current | 40A |
| System Voltage | 12V DC |
| Max. Solar Input Power | 550W |
| Max. Solar Input Voltage (Voc) | 50V |
| Alternator Input Voltage | 12.5V – 16V DC |
| Charging Mode | DC-to-DC & MPPT Solar |
| Idle Power Consumption | < 20mA |
| Operating Temperature | -35°C to +65°C |
| Weight | Approx. 1.3 kg |
| Dimensions | 221 × 155 × 52 mm |
Warranty & Protection
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Eco-Worthy Warranty: This product includes a 1-year Eco-Worthy warranty covering technical defects and manufacturing performance issues.
What’s in the Box?
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ECO-WORTHY 40A DC-to-DC Charger with MPPT
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External Temperature Sensor
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IGN Signal Wire (for smart alternator connection)
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User Manual