Renogy DCC50S
(12 reviews)
Recharge your house battery while driving AND from the sun: the Renogy DCC50S packs a 50A DC-DC charger and MPPT solar controller in one unit, built for vans.
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Characteristics
- Charge current: 50A (12V)
- Inputs: Alternator + solar (built-in MPPT)
- Power / efficiency: 660W, up to 94%
- Compatibility: Lead-acid (flooded, gel, AGM), lithium LiFePO4
- 50A DC-DC charger and solar MPPT in a single unit
Detailed overview: Renogy DCC50S 50A MPPT DC-DC charger
The Renogy DCC50S is a 12V 50A dual-input on-board battery charger, designed to recharge the auxiliary (house) battery of a converted van, a camper, a boat, or a 4x4. Its distinctive feature is combining two functions in one unit: a DC-DC charger (battery booster) and an MPPT solar controller.
While driving, it draws energy from the starting battery connected to the alternator and feeds it to the house battery at a current up to 50A, a much faster and more complete recharge than a simple battery isolator delivers. When parked, its built-in MPPT optimizes charging from solar panels (up to 50V and 660W input). Both sources can be connected at the same time, with the unit intelligently managing the split between them.
With an output power of 660W and a charging efficiency of 94%, the DCC50S works with all the major battery chemistries: flooded lead-acid, gel, AGM, and lithium LiFePO4, through configurable charge profiles. Its voltage-sensitive relay (VSR) provides reliable isolation between the starting battery and the house battery, avoiding any risk of draining the vehicle's battery. Extensive protection (overvoltage, undervoltage, overload, overheating, reverse polarity, short circuit) secures the installation.
An RJ45 communication port lets you add an optional Bluetooth module (BT-2) to monitor charging in real time through the Renogy DC Home app. Note that on a vehicle with a smart alternator, you need to wire the ignition (IGN) lead to trigger charging, and size the cables properly given the 50A draw. For a serious mobile setup combining alternator and solar, the Renogy DCC50S, a design from the California-based brand, is a complete, proven solution.
EAN: 0810081401883
User manual / Instructions for use (PDF)
Comparison
How does the Renogy DCC50S compare with other on-board charging solutions sold in the US?
| Criterion | Renogy DCC50S | Renogy DCC30S | Victron Orion-Tr Smart 12/12-30 |
|---|---|---|---|
| Current | 50A | 30A | 30A |
| Solar MPPT input | Yes (built-in) | Yes (built-in) | No |
| Lithium | Yes | Yes | Yes |
| Bluetooth | Optional | Optional | Built-in |
| Observed price | ≈ $248 | ≈ $187 | ≈ $170 |
The Renogy DCC50S stands out for its high 50A current and built-in solar MPPT controller, which the Victron Orion lacks since it only handles the alternator side (a separate solar controller has to be added). The DCC30S is the same design at 30A for more modest setups. For a van combining alternator and solar panels, the DCC50S offers the best all-in-one package.
Related video
Video: Renogy DC to DC Charger Install and Review - Published on 12/01/2020
Our tester's review: Gilles Caron
The Renogy DCC50S is one of the key pieces of gear in a converted van, and in use it delivers on its promises. We installed it to recharge an auxiliary lithium battery, with one input from the alternator and another from roof-mounted solar panels. The result is impressive: while driving, the house battery recharges at 50A, far faster than with a simple battery isolator, and once parked, the MPPT controller takes over with solar. Having both functions in a single unit greatly simplifies the install and the wiring. The voltage-sensitive relay cleanly isolates the starting battery, so you are not staring at a dead battery the next morning. Adding the optional Bluetooth module lets you monitor charging from the app, which is genuinely handy. Points to plan for: you need to size the cables properly, since 50A is a lot of current, and set the correct battery profile, and on a smart alternator an ignition wire is required. But for a serious van or 4x4 build, this is a safe bet.
Frequently asked questions: Renogy DCC50S 50A MPPT DC-DC charger
Yes. It is a dual-input charger: it recharges the house battery from the alternator while driving (up to 50A) and from solar panels when parked thanks to its built-in MPPT controller. Both sources can be used together.
Yes. It works with lead-acid (flooded, gel, AGM) and lithium LiFePO4 batteries, through configurable charge profiles. You just need to select the correct battery type during installation.
Yes, but on a vehicle with a smart alternator, you need to wire the ignition (IGN) lead to trigger charging, because the alternator voltage varies and does not always trip the charger automatically.
Its solar input accepts up to 50V and 660W, with a built-in MPPT controller that optimizes efficiency. Combined with the alternator input, it delivers a total charge current up to 50A to the house battery.
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Fossibot FAC580
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Up to 580W from the alternator while driving, about 6 times faster than a 12V outlet, compatible with most third-party power stations.
Published on 02/09/2026