Forum Discussion

ryankenn's avatar
ryankenn
Explorer
Jul 28, 2021

Power Sag/Current Issues at Seasonal Site

We are in our first year at a seasonal site we think we will be staying at long term. Everything is great, but the power. We only have a small Jayco 16XRB but even its 8K Btu AC and fridge prove challenging.

I haven't had my meter on it yet but you can tell by the sounds of the fans or AC that either the voltage droops badly or the run on the 12 wire from the looks of it is so long current isn't being delivered as fast as its demanded. Depending on neighboring usage fans will start slow and ramp up.

I am looking for ideas on how to combat this? I have setup a solar array at home before, but I don't know what to search for in terms of a device like an MPPT controller, but instead of the panels, that input is line. I would like a bank of batteries to be controlled and charged by the pole 120V (or sagged level its at) and the controller to supplement the supply using the batteries and an inverter so the trailer has steady voltage and good current delivery.

I had hoped a device existed but in searching it may be more practical to just have the site run a charging system that keeps a bank of batteries full and I draw from an inverter.

Thoughts or experience here would be great. The Norcold has already had one control fault leaving us with spoiled food and the neighbour has had some HW boards and the in trailer 12V inverter board fold because of the same issues and I want to avoid this.

Thanks!
Ryan
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    I will add to this
    I used an autoformer.. I still have it but no longer have an RV
  • time2roll wrote:
    Lynnmor wrote:
    An autoformer will boost 10%, your 100 volts will become 110. Since 108 volts should be considered the minimum, I would bet that there will be times when your boosted voltage will drop below that.
    Possibly two autoformers will be needed.

    My Franks booster goes 16% in two stages and has worked fine when needed. Only one place near Glacier NP was the voltage too low to boost until sundown and the other air conditioners started cycling.


    The two stages are a good thing, but Frank passed away about five years ago.
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    I have a Hughes 50 amp I no longer have a use for... One park the post showed less than 90 volts... My RV's indoor meter was "in the green". As I like it.
  • Lynnmor wrote:
    The two stages are a good thing, but Frank passed away about five years ago.
    Yes it is too bad his booster went with him. I met Frank about 15 years ago when I picked mine up at his home in Los Angeles to save shipping. Nice man. RIP.

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