The Renogy 12V 30A DC to DC Battery Charger with MPPT features a black design accented by four blue indicator icons on its front panel, allowing you to easily monitor and manage your solar power system. This advanced dual input smart charger supports both solar and alternator charging and is compatible with lithium, AGM, gel, and flooded batteries—ensuring efficient energy conversion and reliable performance for your setup.

Renogy 12V 30A DC to DC Battery Charger with MPPT – Dual Input Solar & Alternator Smart Charger for Lithium, AGM, Gel & Flooded Batteries

30A Battery Charger
$182.78
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The Renogy 12V 30A DC to DC Battery Charger with MPPT features a black design accented by four blue indicator icons on its front panel, allowing you to easily monitor and manage your solar power system. This advanced dual input smart charger supports both solar and alternator charging and is compatible with lithium, AGM, gel, and flooded batteries—ensuring efficient energy conversion and reliable performance for your setup.
  • The Renogy 12V 30A DC to DC Battery Charger with MPPT features a black design accented by four blue indicator icons on its front panel, allowing you to easily monitor and manage your solar power system. This advanced dual input smart charger supports both solar and alternator charging and is compatible with lithium, AGM, gel, and flooded batteries—ensuring efficient energy conversion and reliable performance for your setup.
  • A Renogy 12V 30A DC to DC Battery Charger with MPPT – Dual Input Solar & Alternator Smart Charger for Lithium, AGM, Gel & Flooded Batteries, in black, featuring indicator icons on the top surface, cooling fins on the bottom, and mounting flanges along each side, photographed on a white background.
  • Close-up of a black Renogy 12V 30A DC to DC Battery Charger with MPPT – Dual Input Solar & Alternator Smart Charger, featuring three indicator icons for battery, solar panel, and battery bank, with the Renogy logo displayed at the top right.
  • A Renogy 12V 30A DC to DC Battery Charger with MPPT, featuring a black design with three blue indicator icons for solar panel, battery, and status, and the Renogy logo at the top left.
  • Close-up of a black Renogy 12V 30A DC to DC Battery Charger with MPPT – Dual Input Solar & Alternator Smart Charger for Lithium, AGM, Gel & Flooded Batteries, featuring three indicator icons on the front panel and cooling fins at the bottom.
  • Infographic featuring the Renogy 12V 30A DC to DC Battery Charger with MPPT – Dual Input Solar & Alternator Smart Charger, with icons highlighting temperature compensation, over-voltage and over-current protection, built-in VSR, reverse prevention circuit, and reverse current protection—ideal for use as an auxiliary battery charger or an MPPT solar charger for Lithium, AGM, Gel & Flooded batteries.
  • A Renogy 12V 30A DC to DC Battery Charger with MPPT, shown connected to a black battery, with icons on the left displaying compatibility with Gel, AGM, Flooded, and Lithium batteries. The blue background features the text "Support Multiple Battery Types.
  • Illustration of an RV with solar panels on the roof and interior wiring, showcasing the Renogy 12V 30A DC to DC Battery Charger with MPPT—a dual input smart charger for lithium, AGM, gel, and flooded batteries that allows charging from both solar panels and the alternator. The scene displays the RV driving on a road against mountains and a blue sky background, with explanatory text about staying charged off-grid.
  • The Renogy ONE and DC Home app are shown monitoring a Renogy 12V 30A DC to DC Battery Charger with MPPT via RJ45 and RS485 communication ports, using the included cables and Bluetooth adapter. A blue highlight circles the RJ45 port, emphasizing seamless integration of the charger with auxiliary battery systems for efficient power management.
  • Diagram shows a van with solar panels, highlighting a Renogy 12V 30A DC to DC Battery Charger with MPPT – Dual Input Solar & Alternator Smart Charger, connecting to both house and start batteries for versatile charging from either solar panels or the vehicle alternator.
  • The image displays the Renogy 12V 30A DC to DC Battery Charger with MPPT, a sleek black electronic device featuring removable side covers, an integrated terminal design, and a die-cast aluminum bottom. Shown with one cover partially removed to reveal its connector ports, this unit serves as a smart dual input solar and alternator charger—ideal for managing auxiliary battery charging in various applications, including lithium, AGM, gel, and flooded batteries.
  • Two images show the Renogy One M1 monitoring system and the BT-2 Bluetooth module, both providing mobile and wall display interfaces for real-time energy tracking—ideal companions when using the Renogy 12V 30A DC to DC Battery Charger with MPPT, a dual input solar and alternator smart charger compatible with Lithium, AGM, Gel, and Flooded batteries. Text: "Take Control of Your Energy Easily.
  • Renogy 12V 30A DC to DC Battery Charger with MPPT is shown with icons representing compatibility for lithium, AGM, gel, and flooded batteries. Multiple battery models are displayed on white platforms against a light background, emphasizing the charger's dual input design—supporting both solar panels and alternators—for versatile energy management as an MPPT solar charger and auxiliary battery charger.
  • A Renogy 12V 30A DC to DC Battery Charger with MPPT – Dual Input Solar & Alternator Smart Charger for Lithium, AGM, Gel & Flooded Batteries is featured alongside icons, a coil of wire, and a split background of a scorching desert (65°C/149°F) and snowy landscape (-35°C/-31°F), highlighting its temperature-resistant design.
  • The Renogy 12V 30A DC to DC Battery Charger with MPPT features icons for temperature, over-voltage, and over-current protection, VSR, reverse prevention, and reverse protection—making it ideal as an auxiliary battery charger or MPPT solar charger. Three certification documents are displayed below.
  • Renogy DC to DC Charger with MPPT 12V 30A multi-stage charging diagram showing compatibility with RVs, cars, and marine vehicles. The illustration demonstrates dual-source charging setups using alternator and solar panel inputs, highlighting the smart on-board battery charger's ability to charge lithium, AGM, gel, and flooded batteries.
Renogy 12V 30A DC to DC Battery Charger with MPPT – Dual Input Solar & Alternator Smart Charger for Lithium, AGM, Gel & Flooded Batteries

Renogy 12V 30A DC to DC Battery Charger with MPPT – Dual Input Solar & Alternator Smart Charger for Lithium, AGM, Gel & Flooded Batteries

$182.78
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Reliable performance with precision-tested power delivery.
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Energy-efficient design reduces heat and power loss.
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Description

Keep your auxiliary battery charged wherever your adventures take you. The Renogy 12V 30A DC to DC Charger combines alternator charging and built-in MPPT solar charging into one compact unit, intelligently prioritizing solar energy when available to maximize efficiency and reduce fuel consumption. Designed for RVs, vans, trucks, boats, and off-grid vehicles, this multi-stage smart charger delivers reliable charging for lithium, AGM, gel, and flooded batteries while protecting your electrical system with comprehensive safety features.

Dual Charging Sources for Maximum Efficiency

Why choose between solar and your alternator when you can use both?

The Renogy DC to DC Charger accepts power from:

  • Vehicle alternator
  • Solar panels with built-in MPPT

When both power sources are available, the charger intelligently prioritizes solar energy to reduce alternator load and improve overall efficiency.

Ideal for:

  • RVs
  • Camper vans
  • Overlanding vehicles
  • Boats
  • Service trucks
  • Off-grid mobile power systems

Built-In MPPT Solar Charge Controller

Extract more energy from your solar panels.

The integrated Maximum Power Point Tracking (MPPT) controller continuously optimizes solar performance, helping your batteries recharge faster while maximizing available sunlight.

Benefits include:

  • Improved solar charging efficiency
  • No separate MPPT controller required
  • Reduced system complexity
  • Better off-grid performance

Intelligent Multi-Stage Battery Charging

Protect your battery investment with advanced charging technology.

The Renogy charger automatically performs:

  • Bulk Charging
  • Boost Charging
  • Float Charging

This intelligent charging profile helps ensure batteries reach a full charge while promoting long-term battery health.

Compatible battery types include:

  • Lithium (LiFePO₄)
  • AGM
  • Gel
  • Flooded Lead Acid
  • Standard Lead Acid

Designed for Modern Dual-Battery Systems

Perfect for keeping your house battery charged while protecting your starting battery.

Compatible with:

  • Traditional alternators
  • Smart alternators
  • Solar charging systems
  • Dual-battery installations

The charger can also help maintain the vehicle's starting battery during periods of low voltage using available solar input.

Marine-Grade Protection

Built to perform in demanding environments.

Features eight integrated protection systems, including:

  • Isolation Protection
  • Overvoltage Protection
  • Overcurrent Protection
  • Overtemperature Protection
  • Reverse Polarity Protection (Solar)
  • Reverse Polarity Protection (Alternator)
  • Reverse Current Protection
  • Overheat Protection

Designed for dependable operation in automotive, marine, and off-road applications.

Compact Installation

Powerful performance without taking up valuable space.

Dimensions:

  • Length: 9.6 in
  • Width: 3.0 in
  • Height: 5.7 in

Weight:

  • 3.1 lb

The compact design makes installation easier in tight battery compartments, utility bays, and equipment cabinets.

Smart Monitoring Ready

Expand your Renogy energy system with real-time monitoring.

Compatible with:

  • Renogy ONE
  • RMS-DCDC Display
  • Renogy DC Home App
  • RS485 Communication
  • BT-2 Bluetooth Module (sold separately)

Monitor:

  • Battery voltage
  • Charging status
  • Temperature
  • System faults
  • Charging performance

Technical Specifications

Specification Details
Product Name Renogy DC to DC Battery Charger with MPPT
Input Voltage 12V DC
Output Voltage 12V DC
Charging Current 30A
Charging Method Multi-Stage (Bulk, Boost, Float)
Solar Charging Built-in MPPT
Charging Sources Alternator + Solar
Compatible Battery Types Lithium (LiFePO₄), AGM, Gel, Flooded, Lead Acid
Communication RS485
Bluetooth BT-2 Module Ready (Sold Separately)
Monitoring Renogy ONE, RMS-DCDC, DC Home App
Dimensions 9.6 × 3.0 × 5.7 in
Weight 3.1 lb

Why You'll Love It

The Renogy 30A DC to DC Charger simplifies dual-battery charging by combining alternator charging and a high-efficiency MPPT solar controller into one rugged unit. Whether you're traveling in an RV, exploring off-grid, or powering marine electronics, it intelligently manages your batteries for reliable performance, extended battery life, and efficient energy use.

What's Included

  • Renogy 12V 30A DC to DC Battery Charger with MPPT
  • User Manual
  • Installation Hardware
Shipping

We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
Manufacturing

Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.
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Renogy 12V 30A DC to DC Charger with MPPT for Dual Battery Systems

Renogy 12V 30A DC to DC Charger with MPPT for Dual Battery Systems

Charge lithium, AGM, gel, and flooded batteries using solar panels or your vehicle alternator. The Renogy 12V 30A DC to DC Charger features built-in MPPT, intelligent multi-stage charging, eight safety protections, and compatibility with RV, marine, and off-grid power systems.
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Dynamic Power Supply is the trusted choice for reliable, high-performance power solutions, offering seamless support across the country.

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