Renogy 40A 12V DC-to-DC Battery Charger with MPPT – Dual-Source Charging, Simplified
Drive. Park. Charge. Repeat.
The Renogy 40A DC-to-DC Battery Charger with MPPT is your all-in-one charging solution for keeping your house batteries topped off—whether you're on the move or off-grid. Designed for campervans, RVs, and adventure rigs, this charger automatically switches between your alternator while driving and solar panels when parked.
With a built-in Maximum Power Point Tracking (MPPT) solar charge controller, it efficiently captures every drop of solar energy, delivering up to 99% tracking efficiency. Plus, a simple SELECT button lets you prioritize solar charging, putting you in full control of your system.
Key Features:
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Dual Charging Sources – Switches automatically between vehicle alternator and solar power
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Built-In MPPT Controller – Up to 99% efficiency for optimal solar charging
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Smart Charging Prioritization – Use the SELECT button to prioritize solar when parked
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Perfect for Vanlife & Off-Grid – Reliable power for Sprinter, Transit, and ProMaster builds
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Comprehensive Safety – Built-in protections: Over-voltage, reverse polarity, over-temp, and more
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Compatible with All Major Battery Types – Supports Lithium (LiFePO4), AGM, Gel, and Flooded
Specifications:
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Alternator Input Voltage: 8V–16V DC
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Solar Input Voltage: Up to 25V
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Max Charging Current: 40A
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Output Voltage Range: 13.2V–14.7V (Battery type selectable)
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Efficiency: Up to 94% (DC), 99% (MPPT solar)
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Dimensions: 8.3 x 5.9 x 2.8 in
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Weight: 4.4 lbs
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Cooling: Intelligent fan-based system
What’s Included:
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[1] Renogy 40A DC-DC MPPT Charger
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[1] User Manual
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[1] Mounting Hardware Kit
Ideal For:
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Van Conversions
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Off-Grid Campers
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Weekend Overlanding
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RV Electrical Systems
✔ FREE Shipping to Lower 48 States
✔ 2-Year Manufacturer Warranty
Stay powered in motion or at rest—upgrade to the Renogy 40A DC-to-DC MPPT Charger for dependable, efficient energy wherever your van takes you.
Available in these skus:
- PDF - Specifications:
- RBC40D1S-G1_QUICKGUIDE.pdf
- PDF - User Manual:
- Renogy 40a dcdc user manual v1.0 20240320.pdf
