Renogy DCC50S — 12V 50A DC?DC MPPT On?Board Battery Charger
Overview
The Renogy DCC50S is a 12V DC?DC MPPT on?board battery charger that charges a service (house) battery from your vehicle’s alternator, solar panels, or both at the same time. It supports multiple battery chemistries, includes smart monitoring options, and adds safety and convenience features designed for RVs, trucks, boats and off?grid setups.
Benefits
- Charge faster and use power longer: combine alternator and solar inputs so your service battery gets charged more quickly and you stay off?grid longer.
- Less worry about starting your vehicle: built?in soft?start and isolation features reduce alternator stress and protect the starter battery.
- Easier system monitoring: connect with Renogy ONE, DC Home App or monitoring screens to check charge status and settings remotely.
- Simpler, safer installation and handling: removable side covers and integrated terminal layout reduce wiring mistakes and accidental contact.
- Less battery maintenance: multi?stage charging and a Voltage Sensitive Relay (VSR) keep batteries topped up and healthy without constant manual attention.
Features
- Multi?input charging — accepts alternator (starter battery) and solar panel inputs simultaneously.
- MPPT solar charging mode for efficient harvesting from solar panels.
- Multi?chemistry support — Gel, AGM, Flooded, Lithium and user?defined profiles.
- Soft start circuit to reduce inrush and protect the charger and alternator at engine start.
- Voltage Sensitive Relay (VSR) for reliable isolation and trickle maintenance of both batteries.
- RJ45 communication port and RS485 protocol compatible with Renogy monitoring devices, DC Home App and optional BT?2 Bluetooth module.
- LED push?button battery type selection (no built?in display required).
- Integrated NEG? terminal partitioning to simplify connections and reduce miswiring.
- Multiple built?in protections: reverse polarity, over?voltage, over?current, over?temperature, reverse current, and solar/alternator reverse polarity protection.
- Removable side covers to protect terminals during transport and handling.
Specifications
- System voltage: 12 VDC
- Battery voltage range: 9–16 VDC
- Maximum charging current: 50 A
- Max solar input voltage: 25 V
- Max solar input power: 660 W @ 50 A
- Max alternator input power: 660 W @ 50 A
- Alternator input voltage:
- Traditional alternator: 13.2–16 VDC
- Smart alternator (Euro 6): 12–16 VDC (IGN connection required)
- Charging efficiency: up to 97%
- Self?consumption: 60 mA
- Battery types supported: Gel, AGM, Flooded, Lithium, User?defined
- Ground type: Negative
- Terminal size: M8 × 1.25 (10 mm)
- Temperature compensation: ?3 mV/°C/2V
- Operating temperature: ?31°F to 149°F (? ?35°C to 65°C)
- Storage temperature: ?40°F to 176°F (? ?40°C to 80°C)
- Operating / storage humidity: 0%–95%, no condensation
- Dimensions: 9.6 × 5.7 × 3.0 in (L × W × H)
- Weight: 3.13 lbs
- Communication protocol: RS485 (RJ45 port)
- Certifications: CE, RoHS, FCC Part 15 Class B
- Material & workmanship warranty: 2 years
- Included in box:
- 1 × Battery Charger (DCC50S)
- 1 × Battery Temperature Sensor
- 1 × IGN Signal Wire
- 4 × Ring Terminals
