Renogy DCC30S 12V 30A Dual Input DC-DC On-Board Battery Charger with MPPT
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Not Sure This Is The Right System?
Request a Free Solar ProposalThe Renogy DCC30S 12V 30A Dual Input DC-DC On-Board Battery Charger with MPPT is a versatile charging solution that combines a 30A DC-to-DC battery charger with an integrated MPPT solar charge controller. Designed for RVs, camper vans, boats, trailers, and overlanding vehicles, it efficiently charges your house battery from both the vehicle alternator and solar panels. With support for multiple battery chemistries, Bluetooth monitoring compatibility, optimized charging logic, and enhanced thermal management, the DCC30S delivers reliable charging performance wherever your adventures take you.
Everything you need is included with your product.


Electrical Parameters
| Specification | Details |
| System Voltage | 12VDC |
| Battery Voltage Range | 9-16VDC |
| Maximum Charging Current | 30A |
| Battery Types | AGM/SLD , GEL ,FLD ,LI ,USER |
| Service Battery Charging Mode | MPPT |
| Charging Efficiency | 94% |
| Max. Solar Input Voltage | 30V |
| Max. Solar Input Power | 400W |
| Alternator Input Voltage | Traditional Alternator: 13.2-16VDC ; Smart Alternator (Euro 6): 12-16VDC |
| Max. Alternator Input Power | 400W |
| Self-consumption | 60mA |
| Temperature Compensation (Non-Lithium) | -3mV / ℃ / 2V |
| Temperature Compensation (Lithium) | 0mV / ℃ / 2V |
| Idle Power Consumption | <30mA |
General Data
| Specification | Details |
| Ground Type | Negative |
| Terminal Size | M8*1.25 - 10mm |
| Terminal Range | 8AWG-4AWG |
| Operating Temperature Range | -31℉ to 149℉/-35℃ to 65℃ |
| Storage Temperature Range | -40℉ to 176℉/-40℃ to 80℃ |
| Operating / Storage Humidity | 0%-95%, No Condensation |
| Dimensions | 9.61 x 5.75 x 3.03 inch/244 x 146 x 77mm |
| Weight | 3.13 lb / 1.4 kg |
| Communication Protocol | RS485 |
Certifications
| Specification | Details |
| Certification | CE;ROHS;FCC Part 15 class B; ETL listed to UL 1741 & CSA C22.2 |
What does dual input charging mean?
The DCC30S can charge your house battery from both your vehicle's alternator while driving and solar panels while parked, automatically managing both charging sources.
What battery types are supported?
The charger supports Lithium (LiFePO₄), AGM, Gel, Flooded, and Sealed Lead-Acid batteries.
What is the maximum solar input voltage?
The DCC30S supports solar panel input voltages up to 30V, providing greater flexibility when selecting solar panels.
Can I monitor the charger from my smartphone?
Yes. By adding the optional Renogy BT-2 Bluetooth Module, you can monitor charging status and adjust settings using the Renogy DC Home App.
Does the charger include an MPPT solar controller?
Yes. The DCC30S has a built-in MPPT solar charge controller that maximizes solar energy production and improves charging efficiency.
Is this charger suitable for RVs and camper vans?
Absolutely. It is specifically designed for RVs, camper vans, boats, trailers, overlanding vehicles, and other mobile battery charging applications.
Shipping is free across the Lower 48. No fuel surcharges, no residential fees, and no liftgate charge on freight orders. The price you see is the price you pay. Read our full Shipping Policy here.
Most orders leave the warehouse in 1 to 2 business days and arrive within 3 to 10 business days. We send tracking the moment it ships.
Anything that ships on a pallet goes freight with liftgate and pallet jack included, so the driver gets it off the truck and onto the ground at your address. The carrier will call you directly to schedule a delivery window.
Returns are 30 days from delivery. For freight deliveries, inspect the shipment before you sign for it. If something is damaged in transit, note it on the delivery receipt and we handle the freight claim, not you. Read more about our Returns Policy here.
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