✅ Authorized Online Dealer
🚚 Free Shipping
💲 We Beat The Lowest Price
📦 Fast 4–7 Day Delivery
📞 Questions? Call Our Experts: (877) 834-4299

Keep your batteries charged on the go with automatic switching between DC input while driving and solar power when parked.

Easily prioritize solar charging using the SELECT button, ensuring efficient and reliable energy management wherever you are.

General Data

  • Model: RBC40D1S
  • Grounding: Common negative
  • Operating Temperature: -4°F to 113°F (-20°C to 45°C)
  • Storage Temperature: -4°F to 140°F (-20°C to 60°C)
  • Humidity Range: 0% – 95% RH
  • Cooling Method: Heat sink
  • Enclosure Rating: IP31

Dimensions & Weight

  • Dimensions (L × W × H): 195 × 149 × 48 mm (7.68 × 5.87 × 1.89 in)
  • Weight: 1.2 kg (2.65 lb)

Electrical / Charging Data

  • System Voltage: 12V to 12V
  • Maximum Output Current: 40A
  • Output Power: 584W
  • Solar Input Voltage Range: 10V – 30V DC
  • Output Voltage Range: 10V – 16V DC
  • Alternator Input (Traditional): 13.2V – 16.0V DC
  • Alternator Input (Smart / Euro 6): 12V – 16.0V DC
  • Supported Battery Types: AGM, gel, flooded, lithium iron phosphate
  • Input Fuse Rating: 60A
  • Output Fuse Rating: 50A
  • Charging Efficiency: ≥ 93%
  • Idle Power Consumption: < 10 mA

Regulatory & Safety

  • Certifications: FCC Part 15 Class B, CE, RoHS, SAA

Warranty

  • Material & Workmanship Warranty: 2 years

What type of alternator is this dc-dc charger compatible with?
This charger is compatible with both conventional and smart alternators. conventional alternators provide a steady voltage, while smart alternators vary their output. for smart alternators, you must connect the charger using the ign (acc) cable to the vehicle ignition port so the charger can operate correctly.
What types of battery does this charger support?
This charger supports 12v lithium, agm, gel, and calcium batteries. it is designed to bring batteries to a full 100% charge and can even help recover lithium batteries that have been discharged to low voltage.
How do i set the battery type if there is no display screen?
Press and hold the select button on the side of the charger. the led lights for each battery type will illuminate in sequence to show the available options. release the button when the led for your desired battery type is lit.
If both solar power and the engine are available, can i prioritize solar charging?
Yes. the charger defaults to dc (alternator) charging, but you can prioritize solar charging by pressing the select button on the side of the unit to switch to solar.
Can solar charging and dc charging switch automatically?
Yes. the charger will automatically switch between solar and dc based on input voltage conditions. when the engine is running, it will switch from dc to solar if the dc input voltage is below 11.3v and the solar input is above 13v. when the engine is off, it will switch to solar if dc input voltage is below 12.7v and solar input is above 13v.

Customers also bought

    • Free Shipping

      Free shipping with every order!

    • Premium Customer Support

      Connect with us through email or phone. Contact Us

    • Secure Encrypted Payments

      We utilize advanced encryption to

      ensure there is never an issue with your privacy.

    • Returns & Refunds

      30 Day Hassle Free Returns. Check Policy