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  1. Karate Chopped

    Dud battery, or just not enough sunlight?

    Although it does get cold near the capital of Vienna.
  2. Karate Chopped

    Dud battery, or just not enough sunlight?

    Yeah, that's the chamber temp in the freezer, so technically a very specific spot in Australia is -15degC! But where I live it often gets down to 0degC and some snow every couple of years. Also gets to high 40s in summer, so its still hot.
  3. Karate Chopped

    Dud battery, or just not enough sunlight?

    Nope, amps.... as we know Ah is a total volume of charge. 24hrs later and the battery is still sitting at high twelves, but I may have overfilled my battery so hopefully some of the water will boil off and it will perform better. But its definitely holding charge better and less drop under...
  4. Karate Chopped

    Dud battery, or just not enough sunlight?

    Also just tonged the fridge and it's drawing close to 4A, which is no surprise that it's nearly double what the sales brochure says. Panels are putting out 7A in the morning sun, and I'll keep measuring throughout the day to see what it can do in midday sun. On top of that, I'll do a battery...
  5. Karate Chopped

    Dud battery, or just not enough sunlight?

    Problem solved! Well, at least its looking solved. Re-routed the cables so that everything is now on the battery side of the controller. So at night time its directly drawing from the battery, and during the day it should be charging and power the fridge in parrallel. I'll see how the voltage at...
  6. Karate Chopped

    Dud battery, or just not enough sunlight?

    I agree with you that a Kings mppt controller isnt going to match a Renogy or better. Which is why I'm putting that high up the queue for potential issues, especially considering I have it mounted behind the panel which is always out in the open. I'm betting the IP rating on it isn't great. As...
  7. Karate Chopped

    Dud battery, or just not enough sunlight?

    Everything comes from China. Its just a function if you buy something good or bad.
  8. Karate Chopped

    Dud battery, or just not enough sunlight?

    I would agree with that being a symptom of power supply sizing issues such as undersized cables, or earthing issues. Basically the start up current sucks the line out, voltage drops, then fridge freaks out. This is basically what I was seeing at 2am when I was camping. Low enough to go into...
  9. Karate Chopped

    Dud battery, or just not enough sunlight?

    Since I love data and trends, I cant help but look at the trends when commissioning. Its looking like the battery is settling into a voltage of about 12.6V overnight, which still feels low, but bearing in mind this is the voltage the fridge sees via the controller. And then when the fridge...
  10. Karate Chopped

    Dud battery, or just not enough sunlight?

    Just a cheapy at the moment that came with the panel. I reckon my cheap tong tester will tell me just as much as a controller. One thing I did consider as I lay in bed last night is to check my resistance across the plugs. I might have developed a bad earth over winter.
  11. Karate Chopped

    Dud battery, or just not enough sunlight?

    The shop tested my battery and its testing okay. But doing some online research, and talking with the guy at the shop, he recommended NOT putting my fridge on the load side of the controller, rather connect it to the battery directly, and still use the panel/controller to charge the battery. In...
  12. Karate Chopped

    Dud battery, or just not enough sunlight?

    I agree with you without solar. When I first put in the fridge, with my dodgy old aux battery, I would get about 2 days and then it was done. Which is why I put in the panels. I also agree with you about panel sizing, and part of the reason I went with 200W of panel. I'm sure in reality on most...
  13. Karate Chopped

    Dud battery, or just not enough sunlight?

    A few quick answers, its a Kick Ass 75L dual zpne fridge. I'm running the bigger chamber at 4degC, and the smaller chamber at -13degC. Everything is connected via anderson plugs. Only the fridge is on the load side of the mppt controller with all the other stuff (lights mainly) directly...
  14. Karate Chopped

    Dud battery, or just not enough sunlight?

    I was wondering if anyone has experienced something that has (maybe) recently cropped up. I'm currently running about 200W of panels via a mppt controller, with a flooded lead acid aux battery (under the hood) and my fridge is the main load. Since the start of the year, the whole system has...
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