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Camper_Jeff___K's avatar
Feb 17, 2025

Had To Reset My Victron MPPT Solar Controller

VIDEO: Had To Reset My Victron MPPT Solar Controller

I had to reset my Victron MPPT 150/70 Solar Controller. What happened is, while I was in the barn working on the truck and replacing the engine, I was getting no solar charging because I was inside a building unable to get sun to charge the batteries. Obviously, I couldn't run the engine to charge via the DC to DC charger either. I used a 6 amp charger to maintain charge on the batteries. Apparently, because the charger operates at a higher voltage than the solar controller, it forced a safety shut down of the Victron MPPT solar controller. To restore function, you need to do a reset which consists of disconnecting both the solar and battery connections from the MPPT controller, then reconnecting them. Everything works now.

  • could you not have just plugged the camper in and keep the batteries up that way?  am I missing something you had to use a separate 6amp charger?

    • Camper_Jeff___K's avatar
      Camper_Jeff___K
      Nomad III

      I had a 45 amp boondocker from the guy in Idaho that burned out, I'm guessing because it couldn't handle the current demand of 400 AH of LIFEPO batteries.

      I'm looking to replace it with a Victron 3000 watt pure sine inverter charger. The delay is, our engine self destructed, and we never made it to Quartzsite to buy one. Mail ordernow I suppose.

      • StirCrazy's avatar
        StirCrazy
        Moderator

        ahh, it probably just died, it wouldn't be because of the LiFePO4, they don't draw power they accept power like any other battery.  they just do it more efficiently.

        a 3000 watt, wow are you running the microwave and the toaster at the same time?  I just run a 2000 watt in my 5th wheel, I couldn't imagine what I would do with a 3000 watt inverter haha.  I am looking at the renogy 2000 watt inverter/charger for my truck camper.  just haven't decided for sure if I want to put an inverter in it yet.   if I do THIS is the one I am looking at.