diy solar

diy solar

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  • Is it possible to overclock a victron 75-15 solar controller?

    Hi I have 3 x 100W panels in series on my Van's roof (to charge a 12v lifepo4), each panel can produce between 5-6A current at 18v. So it means I can produce between 15 and 18A max. As you know the victron 75-15 is limited to 15A, but it would be great if I could reach say 16 or 17A... Is it...
  • BMS allowing discharging whereas it should not

    Hi, Sometimes when I deactivate the discharge by toggling the button on my JBD BMS (with the xiaoxiang android app), the cursor slides but it does not take it into account and you can still power stuff. And sometimes it is ok. Other times, I do it at night and it's fine for a few hours but in...
  • My fridge sometimes makes a loud noise when the compreasor starts

    Hi, I have a vevor 12v 25 liter portable fridge. Sometimes when the compressor starts it makes a big noise that wakes me up during the night. It lasts only a fraction of second but loud enough to wake me up. Hopefully it doesn't do it each time the compressor starts. I'd say it makes the noise...
  • Question about the xiangxiang bms app

    Hi, I read if we modify something in the app setup, no matter what it is, the app will kind of reset the bms so it will forget all the data it gathered previously to make an accurate guess of the battery SOC. Is it true? I'd like to lower the max voltage value, I think it's called Pack...
  • Jbd bms not showing small devices running

    Hi, Let's say if I plug an usb light or something small like this, my bms still shows zero Ah consumed. I think everything under 2 or 3Ah is not shown. Does it mean if I let an usb light plugged during one month, the displayed battery SOC will still be at 100%? (Whereas we all know the battery...
  • Is my lifepo4 or bms dead ?

    Hi, Edit: ok I found the problem, bad contact between one of the bms wires and a cell. I built a 4s 200A lifepo4 (lichen cells) with a 100A jbd bms. The cells came balanced from alibaba, each at 3.30v more or less. I put everything together, everything was fine and I got correct data on the...
  • Battery charging while remaining capacity doesn't increase

    Hi, Sorry for the confusing title, but in short I have a 200Ah lifepo4 battery, as you can see on the pic it is charging fine via my solar panels and dcdc, but the JBD bms shows the remaining capacity doesn't increase anymore. It shows 100% but the remaining capacity should increase as the batt...
  • BMS and mppt victron not showing same voltage

    Hi, My victron 75/15 shows 14.5v while my jbd bms shows 14v. I guess the bms shows the correct voltage. It's a problem because I'd like to charge my lifepo4 battery with my solar panels until it reaches 14.5v but since the victron already shows 14.5 it goes on float mode and doesn't charge...
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