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Renogy 12V 40A DC to DC Battery Charger w/ MPPT
Renogy 12V 40A DC to DC Battery Charger with MPPT
Keep a compatible house battery charged while driving or parked with a charger designed to switch between DC input and solar input. Use the SELECT button to set solar-priority charging for appropriate system conditions.
Switch between solar and DC charging inputs efficiently while maintaining dependable charging support for a compatible mobile power system.
Seamlessly Switch Charging Modes
When input voltage in the primary charging mode drops below the default threshold, the charger automatically switches to the alternate source to maintain efficient charging.
DC Priority
Solar Priority
Understand the Charging Logic Behind Each Model
Renogy presents the 40A model as switching between solar and DC inputs according to availability, while the compared 30A and 50A models support simultaneous dual input.
Get to Know the Key Points
The source comparison identifies the 40A model as a compact MPPT/DC-input charger with SELECT-button mode switching for compatible mobile power systems.
Stay Charged on the Move
Stay Charged on the Drive
Stay Charged on the Water
Multiple Safety Certifications
The live Description presents certification testing as part of Renogy’s focus on dependable off-grid power performance.
Wiring Diagram
The verified in-description wiring diagram illustrates a compatible connection layout for the starter battery, house battery, alternator and solar input.
| Renogy 12V 40A DC to DC Battery Charger w/ MPI | |
| Model SKU | RBC40D1S-G1-US |
|---|---|
| Specifications | |
| Dimensions | 195 x 149 x 48mm |
| Weight | 1.07kg |
| DC Input Voltage Range | 11.2V-24V |
| Solar Input Voltage Range | 12V-30V |
| Output Voltage | 7V-16V |
| Max. Output Power | 616W |
| Max. Input Current | 45A |
| Rated Output Current | 40A |
| Voltage Accuracy | ±200mV |
| Current Accuracy | ±5% |
| Standby Current | <10mA |
| Typical Conversion Efficiency | 93% |
| MPPT Maximum Tracking Efficiency | >99% |
| Charging Mode | 4 Modes |
| Battery Compatibility | Sealed/AGM, GEL, Flood, LifePO4 |
| Waterproof Rating | IP-31 |
| Operation Temperature | -20°C to 45°C |
| Storage Temperature | -20°C to 60°C |
| Humidity | 0%~90% non-condensing |
