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Ernie

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Ernie last won the day on July 28 2019

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  1. Hi all, On a Victron BMV, should the 100% SOC be on float or bulk charging Voltage? I have 2 x Huawei ESM48100A1 batteries and the bulk is 53.4 and float 51V.
  2. Ernie

    Axpert software

    I got mine from ICC directly, it is their product isn't it, and I'm very happy with it. Setup with emoncms and True VNC was easy and Manie from ICC was very helpful. He even logged into my VNC twice after hours to help me set up. Emoncms costs 1$ per feed per year, so its nothing. Seems to me like Sammy works for centurion solar...
  3. It seems to be the BMV itself, I have the 712 and the SOC on the BMV shows the same discrepancies. If the shunt is reversed could this cause the problem?
  4. Here is a good example, clearly cant be at 100% after the discharge of the last 2hrs.
  5. Yes but the soc is clearly wrong most of the time. ie I would have discharged about 3kwh from the batteries and the soc would show 95%, or they would be almost fully charged and it would show 50%. No idea anymore
  6. That is the one Im getting thanks
  7. @Coulomb I have a BMV 712 installed but I'm struggling to get an accurate soc reading. Currently its as per attachment, should be around 90% I reckon. Also soc sometimes show 40% when its on 51V???
  8. @Coulomb I have a BMV 712 installed but I'm struggling to get an accurate soc reading. Currently its as per attachment, should be around 90% I reckon. Also soc sometimes show 40% when its on 51V???
  9. I'm sure this has been covered somewhere but I can't find it. Is it safe to put a 100L geyser with a 2kW element on a 16A Sonoff switch? What would the surge power be for this element?
  10. Thanks GVC, which batteries do you have? Whats your float and back to batteries V?
  11. I also lowered back to grid V to 48 but I kept getting low Voltage alarms from the inverter
  12. Hi @Coulomb. I have 2 of these 48100a1 batteries with a 5k Axpert, victron BMV712 and 9 x 330W panels. I am still trying to get the settings right, currently the inverter switches a lot between grid and batteries as can be seen below. Settings are: Bulk charge - 53.4 Float - 51 Back to grid - 48 Back to discharge - 51 Cutoff - 46 SBU setting Assistance would be appreciated a lot by anyone.
  13. Hi Keith, have you managed to get ideal settings for the batteries? I have bulk charge at 53.4, float at 51. Back to discharge also 51, back to grid 49, cut off at 46. Unfortunately the inverter switches between grid and batterries almost every hour during the evening and night. If I lower the back to grid V to 48, the low V alarm on the inverter keeps going off under 49V.
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