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Power Queen 12V 40A DC to DC Battery Charger

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    Power Queen 12V 40A DC to DC Battery Charger

      Small Size. Simple Setup. Big Compatibility

      Exquisite Design & Simple Operation: Compact and lightweight at just 5.83 × 1.89 × 7.44 inches, the Power Queen DC-DC charger saves space in your vehicle and includes Anderson connectors for easier installation.

      High-Level Safety & Reverse Charge Function: Provides multiple protections—over-charge, over-voltage, and over-temperature—and includes BMS compatibility for LiFePO₄ batteries to prevent reverse current or system faults.

      Dual Input Charging with MPPT: Supports both alternator and solar panel charging. Built-in MPPT controller optimizes solar input for maximum efficiency and stable charging across all phases.

      Great Compatibility & More Options: Compatible with LiFePO₄, AGM, Gel, SLA, and Calcium batteries. Ideal for charging house/service batteries in RVs, campers, boats, and other off-grid setups.

      24-Hour Timely Support: Backed by Power Queen’s dedicated customer support team, providing one-on-one troubleshooting and response within 24 hours.

      $169.99

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        3-7 working days in the US

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        Not satisfied? We offer a hassle-free 30-day return and exchange policy.

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        • FEATURES

        • SPECS

        • FAQ

        • REVIEWS

        Power Queen 12V 40A DC to DC Battery Charger easier wiring&installation
        Power Queen 12V 40A DC to DC Battery Charger built-in MPPT function
        Power Queen 12V 40A DC to DC Battery Charger built-in MPPT function
        Power Queen 12V 40A DC-DC Charger Unboxing!" frameborder
        Power Queen 12V 40A DC to DC Battery Charger with MPPT

        SPECS

        BASIC
        System Nominal Voltage:
        12V
        Battery Type:
        STD,GEL,AGM,LFP
        House Battery Voltage Range:
        11.3V to 16.0V
        Charging Current:
        40A
        Charging Efficiency:
        Max.90%
        Charging Voltage Range:
        14.6V (Lithium); 14.4V to 14.8V (Lead Acid)
        Temperature Compensation:
        -3mV/°C/2V (For Lead Acid Only)
        Max. Alternator Input Power:
        680W
        Standby Self-Consumption:
        <0.6A
        Humidity:
        ≤95% Non-condensing
        Recommended Input/Putput Torque:
        8N·m to 10 N·m/70.8 lbf· inch to 88.5 lbf·inch
        DIMENSIONS
        Size:
        11.65 *8.46 * 3.35 in
        Approx. Weight:
        4.85 lbs
        TEMPERATURE
        Operating:
        14°F to 104°F
        Storage:
        -4°F to 158°F

        FAQ

        Q: What type of alternator is this DC to DC on board battery charger compatible with?

        A:

        This battery charger is compatible with both traditional and smart alternators. However, since traditional alternators maintain a steady voltage during charging and smart alternators adjust their output based on operating conditions, it's essential to connect the charger to a smart alternator using the IGN Signal Wire included in the package, through the Vehicle Ignition Port.

        Q: What types of battery does the charger support?

        A:

        This charger is compatible with 12V Lithium, Gel, AGM, and Calcium batteries, ensuring they reach a full 100% charge. Moreover, it can also revive lithium batteries that have been discharged to a low voltage.

        Q: What will happen if the service battery is fully charged?

        A:

        The Power Queen DC to DC Battery Charger with solar input includes a Voltage Sensitive Relay (VSR). This feature allows the charger to perform Trickle Charging for both the service battery, ensuring it maintains a full charge, and the starting battery using solar panels. Moreover, the VSR ensures reliable isolation between the starting battery and service battery, preventing any interference during charging.

        Q: Is it OK to leave a lithium-ion battery on the charger overnight?

        A:

        Leaving a lithium-ion battery on the charger overnight is typically safe, particularly with chargers like those from Power Queen designed to halt charging when the battery reaches full capacity. This auto-stop feature is standard in modern lithium-ion chargers, effectively preventing overcharging.

        Q: How to choose the right charger for my LiFePO4 lithium battery?

        A:

        It's crucial to ensure your charger provides the correct current and voltage for charging LiFePO4 lithium batteries. For instance, using a 24V charger with a 12V LiFePO4 battery is not recommended. It's essential to use a charger specifically designed for this battery chemistry. Additionally, when charging LiFePO4 batteries, avoid using standard lead-acid chargers that may have features like desulfation or dead battery mode, as these features can potentially harm LiFePO4 batteries.

        Q: Can I use this DC-DC charger while driving?

        A:

        Absolutely. This DC-DC charger is intended to work while the car is driving, continuously charging your secondary battery via the alternator.

        REVIEWS

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