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Internet # 314788416

Model # RBC30D1S

Store SKU # 1005795522

12-Volt 30-Amp Dual Input DC-DC On-Board Battery Charger with MPPT

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Product Details

About This Product

Designed to give you options, the Renogy 30 Amp Dual-Input DC-to-DC MPPT On-Board Battery Charger can charge a service battery in 2 different ways. The multi-stage charger can utilize connected solar panels or an alternator linked to a starting battery. 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. 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. Now you can unlock monitoring and control features exclusively using the BT-2 Bluetooth Module and Renogy DC Home App.*An external fuse is required for installation.


  • Designed to charge service batteries from 2 DC inputs-solar panels and alternator
  • Built-in Maximum Power Point Tracking (MPPT) to maximize the solar power
  • 3-phase charging profile (bulk, boost and float) ensures your service battery will be accurately charged at the correct voltage levels to 100%
  • Built-in Voltage Sensitive Relay (VSR) for easy setup with traditional alternators
  • Compatible with smart alternators (with variable output voltage)
  • Trickle charges the starting battery via solar panels if the service battery is fully charged
  • Isolation of the starting battery and the service battery
  • Temperature and voltage compensation features prolong battery life and improve system performance
  • Smart protection features: battery isolation, over-voltage protection, battery temperature protection, over-current protection, overheat protection, reverse current protection, solar panel and alternator reverse polarity protection
  • Compatible with multiple battery types: AGM, GEL, flooded and lithium
  • Compact with a sturdy design, it was built tough for all conditions
  • Bluetooth monitoring ready, exclusively available with the BT-2 Bluetooth module accessory and Renogy DC Home app available on the IOS and Google play stores
  • Click here for more information on Electronic Recycling Programs
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Product Information

Internet # 314788416

Model # RBC30D1S

Store SKU # 1005795522


Dimensions: H 3.0 in, W 5.8 in, D 9.2 in


Product Depth (in.)

9.2 in

Product Height (in.)

3.0 in

Product Width (in.)

5.8 in


Amperage (A)

30 A


Indicator light


No Additional Items Included





Voltage (v)

12 v

Wattage (W)

400 W

Warranty / Certifications

Manufacturer Warranty

2-year material warranty

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Customer Reviews

4.7 out of 5

  • 4.7 out of 14 reviews
  • 100% recommend this product
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Showing 1-10 of 14 reviews
Best purchase ever
Amazing device, I don't have to worry about getting the sun all the time, very efficient, ready to work and very easy to install. Totally worth it
    • Recommended
    DC to DC 30A
    I bought the 30A version almost a year ago. It's powered by my Volvo XC90 alternator and a 100W solar panel mounted on a roof rack. It easily charges 2 x 69aH X2Power dual purpose SLA batteries. Thats enough to power a gmrs and ham radio, keep my drone and all my smaller fenix flashlights batteries charged as well as a couple batterirs for my hand tools.
      • Recommended
      Lots of value for the money
      Pros include - Rugged construction, simple installation, great value for the money. Cons include - 25vdc max solar input
      • Verified Purchase
      • Recommended
      Work great on my truck with a 160W solar panel
      For the price is actually the best on the market indeed!
      • Verified Purchase
      • Recommended
      • Verified Purchase
      Little piece of wizardry
      This gadget is a little piece of wizardry. It perfectly solves adding solar to an existing two bank, alternator-charged, boat setup, even with a battery bank selector switch. During the day, it charges the house bank from solar. While under power, it allows the alternator to fully-recharge the starter battery, then diverts alternator charge to the house bank, combining solar and alternator for rapid bulk charge on house bank.
        • Recommended
        Nice in Theory, execution is hot garbage.
        Lasted 1 year and then the hardware failed. The software is hot garbage.
          • Recommended
          So far good
          We have two of them, and do not use them much as we have enough sun, though they have performed good so far.
          • Verified Purchase
          • Recommended
          Works great
          Easy install, complete with everything you need, and works great. Perfect for a van camper / RV setup, I'm really pleased with it.
            • Recommended
            DC to DC charging with a solar controller
            This all in one DC to DC management system is just the product I needed.
            • Verified Purchase
            • Recommended
            Showing 1-10 of 14 reviews