12V 30A DC-DC Dual Battery Charger
Renogy's upgraded DC to DC Dual Input Battery Charger now supports 30V solar input, delivering faster and more efficient charging for your house battery.
Intelligent Charging Mode Switching
Charge with advanced logic and Low Solar Cutoff Mode for optimal performance in variable weather conditions.
Versatile DIY Options
Enjoy enhanced customization with the ability to connect solar modules in series up to 50V solar input voltage, expanding your DIY possibilities.
Adapt to Extreme Temperatures
Consistent high efficiency in extreme temperatures with precise battery temperature compensation.
NEG-terminal design for Easy Installation
The all-in-one NEG-terminal design integrates the terminals for the solar panel array, starter battery and house battery, effectively saving installation space.
Comprehensive System Protections
This battery charger features multiple intelligent protections for batteries, solar panels, and the alternator, safeguarding your system and ensuring optimal charging.
Soft Start Circuit Design for Enhanced Battery Stability
The soft start circuit prevents overvoltage and over-discharge by increasing the input voltage smoothly.
Protect Your Solar Panels at Night
At night, the battery's voltage can exceed that of the solar panels, potentially causing reverse charging from the battery to the panels and leading to damage. Reverse current protection eliminates this risk, ensuring system safety.
Package Includes
12V 30A DC-DC Dual Battery Charger
x 1
Battery Temperature Sensor
x 1
Battery Voltage Sensor
x 1
IGN Signal Wire
x 1
DCC30S 12V 30A DC-DC ON-BOARD BATTERY CHARGER WITH MPPT
Electrical Parameters
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
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
3.11 lb / 1.41 kg
Communication Protocol
RS485
Certifications
Certification
CE;ROHS;FCC Part 15 class B; ETL listed to UL 1741 & CSA C22.2
Warranty Information
Material and workmanship warranty
2 Year
Battery Chargers
DCCS Dual Input
Charge Controllers
DCCS Dual Input
Frequently Asked Questions
1. What type of alternator is this on-board battery charger compatible with?
This battery charger is compatible with both traditional and smart alternators. However, since standard/traditional alternator has a fixed voltage when charging, while smart alternator has a controlled charging output based on operating conditions, it is required to connect the charger to the smart alternator through the Vehicle Ignition Port by the IGN Signal Wire comes with the package.
2. What will happen if the service battery is fully charged?
This Renogy's DC to DC MPPT on-board Battery Charger has a built-in Voltage Sensitive Relay (VSR), thanks to which the charger will Trickle Charge the service battery and maintain its fully charged status, and will also Trickle Charge the starting battery via solar panels. The VSR also ensures reliable isolation between the starting battery and service battery, avoiding charging interference.
3. How do I set the battery since there is no display screen?
To change the battery type you will need to press the push button that is located on the PV+ and ALT+ side of the DCDC, then continue to press the button and the LED will display different colors with each representing a single type of battery. Please refer to the manual on page 15 for Battery Type LED.
