ECO-WORTHY 12V 20A DC to DC Charger with Solar Charge Controller Built-in for Solar Panel Alternator

The DC-DC battery charger is installed between the starter battery and the leisure battery, or between the solar panel and the leisure battery, allowing you to charge the leisure battery by pulling power from the vehicle's alternator or solar panel.

The charger utilizes maximum power point tracking (MPPT) technology to ensure that it converts the majority of the available energy by locking onto the maximum power point. This MPPT algorithm enables the charger to quickly track the maximum power point of the PV array, with a tracking efficiency of up to 99%, significantly improving the energy harvested from your solar panels.

The DC-DC charger supports input from both solar panels and the starter battery simultaneously. The alternator input requires an input voltage of 12.4-16V from the starter battery, while the solar charging input requires 16-25V from the solar panel. The charger will automatically choose the alternator input when both solar and alternator inputs meet the charging conditions.

The input voltage range is 12.4-16V for the DC battery and 16-25V for the solar input. The output/charging voltage is 14.4-15.5V, with a maximum output current of 20A for both the DC and solar outputs.

The charger features a soft start function and soft charge current of 20A. The bulk charge voltage is 14.7V for AGM/Gel batteries, 14.4V for lead-acid/lithium batteries, and 15.4V for calcium batteries. The absorption stage uses constant voltage with automatic amperage control, and the equalization stage is automatic.

The float charge voltage is 13.5V for AGM/Gel, lead-acid, and calcium batteries, with a float charge current of 100mA. The charger is suitable for battery ranges from 18 to 250Ah.

Key features of the ECO-WORTHY DC-DC charger include:

1. Multi-input efficient charging: The charger has a built-in solar charge controller, allowing it to charge different types of batteries, including AGM/GEL, lead-acid, lithium, and calcium, from both the generator starting battery and solar panel inputs.

2. Intelligent MPPT charging: The advanced MPPT technology quickly tracks the maximum power point of the PV array, significantly improving the energy harvest from your solar panels.

3. One-way charging: Enhanced safety with isolation for primary and secondary batteries, preventing power loss from the house battery through reverse charging or power consumption.

4. Comprehensive protection measures: The charger features engine start battery low-voltage protection, as well as overcharging and short-circuit protection, for extended battery lifespan.

5. Easy to use: Clearly labeled wiring for solar panels, alternator, and battery, along with indicator lights for normal charging connections, ensuring easy identification of abnormal connections.

The ECO-WORTHY DC-DC charger provides a versatile and efficient charging solution, allowing you to optimize the use of your vehicle's alternator or solar panels to keep your leisure battery charged and ready for your adventures.

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