SKU: RBC30D1S-D Category:

Renogy’s DC – DC Battery Charger with MPPT solar capabilities on-board is designed to give you options!

This multi-stage, multi-input battery charger can charge a service battery from an alternator connected to a starting battery or by utilizing solar panels connected directly to the unit.

While your vehicle’s alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first!

It’s the smart way to keep yourself fully charged and off-grid longer!

And with multi-stage charging and multi-chemistry functionality, Renogy’s DC to DC MPPT Charger has you covered whether you’re using Flooded, Gel, AGM, or Lithium batteries.


Key Features

  • Bluetooth Monitoring Ready! Exclusively available with the optional BT-2 Bluetooth Module accessory and Renogy DC Home App.(IOS and Android)
  • Specially designed to charge batteries from two DC inputs, solar panels and alternator.
  • Built-in Maximum Power Point Tracking (MPPT) to maximize the solar charge rates.
  • 3-phase charging profile (Bulk, Boost, and Float) ensures your service battery will be charged to 100% efficiently
  • Built-in Voltage Sensitive Relay (VSR) to maximise compatibility with traditional alternators.
  • Compatible with smart alternators (variable output voltage).
  • The starter battery is trickle charged via solar panels once the house battery is fully charged.
  • The controller will automatically isolate the starting battery and the house battery.
  • Temperature and voltage compensation help to extend battery life.
  • Protect your investment with Smart Protection Features: battery isolation, over-voltage protection, battery temperature protection, over-current protection, overheat protection, reverse current protection and more.
  • Compatible with multiple battery types: AGM, GEL, Flooded, and Lithium.
  • Compact and sturdy design.
System Voltage : 12VDC Battery Voltage Range : 9-16VDC
Maximum Charging Current  : 30A Battery Type : SLD/AGM, GEL, FLD, LISER
Service Battery Charging Mode: MPPT Charging Efficiency : Up to 97%
Max. Solar Input Voltage : 25V Maximum Solar Input Power : 400W
Alternator Input Voltage : Traditional Alternator: 13.2-16VDC
Smart Alternator (Euro 6): 12-16VDC
Maximum Alternator Input Power : 400W
Self-consumption : 60mA Operating Temperature Range : -31°F ~ 149°F
Dimensions : 9.6*5.7*3.0in Weight : 3.13 lbs / 1.42 kg
Communication Protocol:RS485 Ground Type:Negative
Terminal Size:M8*1.25 – 10mm Temperature Compensation: ‘-3mV/C/2V
Storage Temperature Range: -40°F – 176°F Operating / Storage Humidity: 0%-95%, No Condensation
Supply Voltage: 5VDC Communication Port: RJ45 (RS485 Protocol)
Supply Current: 30mA Display: Backlit LCD
Power Consumption: <1W User Interface: 4 Front Menu Buttons
Operating Temperature Range: -4°F~113°F / -20°C~45°C Mounting System: Wall Mount
Cable Length: 5.00 m (16.4 ft) Voltage Accuracy: ±0.1V
Dimension: 2.76 x 4.33 x 1.25 inch / 70 x 110 x 31.8 mm Operation Temperature: -4°F to 185°F (-20℃~85℃)
Current Accuracy: ±0.1A Weight: 0.14 lbs / 62 g
Wire Length: 16.4ft / 5m
Communication Protocol: RS232 Port Type: RJ45
Input Voltage: 5V or 12V Protection Grade: IP54
Standby Power Consumption: 0.04W Operating Power Consumption: 0.05W
Communication Range: ≤82ft Serial Baud Rate: Fixed Baud Rate 9600bps
Cable Length: 5.00 m (16.4 ft) Dimensions: 2.65 X 1.38 X 0.55 in (67.3 X 35 X 14 mm)
Installation Dimensions: 67.3 φ3.5mm(2.66 φ 0.14in) Operation Temperature: -4°F to 185°F (-20℃~85℃)
Weight: 130g (4.58oz)
FCC Class B Part 15 Compliant YES


Accessories 2-year material warranty

Manual – HERE

Warranty – HERE