Just Clever Things

Renogy DC On-Board Charger with MPPT Gel, AGM, and Lithium Batteries, Using Multi-Stage Charging, 12V 50A



Renogy all-in-one solution for caravans, RV, van, boats or any other vehicle that has a alternator and need to charge 2 batteries.

I found this when I was looking for a battery switch between 2 batteries and the more I was learning about the different types of batteries there were the more confusing it was.

My goal is to replace my auxiliary battery with a LiFePO4 battery and you can’t just connect it in parallel with the start battery like it is right now. You have to have some kind of “smart” charger in between. This can be the solution I’m looking for


  • The Renogy DC-DC On-Board Battery Charger with MPPT is designed to charge service batteries at the most effecient rate from two DC input, solar panels and the vehicles alternator
  • Compatible with multiple deep cycle battery types: AGM, GEL, Flooded, and Lithium
  • Sophisticated automatic 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 user friendly setup with traditional alternators
  • 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
  • Connect your solarpanels

  • Connect to alternator / Start battery

  • Connect to Auxiliary battery, just choose type LiFePO4 or Gel or Lead acid
DCC30S 12V 30A Dual Input DC-DC On-Board Battery Charger with MPPT with Renogy ONE Core charge