diy solar

diy solar

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  • Post in thread: What voltage to charge at to get to 90%?

    I've got a home made bank of these 230ah cells: https://www.aliexpress.com/item/33017301036.html?spm=a2g0s.9042311.0.0.2ae54c4d6m16pP I've got a Daly BMS, Victron Solar charger, battery to battery charger, BMV and Smart Battery Sense. I had my BMS and Vicron stuff all set to charge to...
  • Post in thread: What voltage to charge at to get to 90%?

    I am full-time in my van. I have a fridge that uses about 3a when the compressor is running. my interior lights are about 1.5a. I have a 25amp, 12v hot water heater which I usually run on a 2 hour relay maybe 3 or 4 times a week, but I'd like to run it more when I can. I have a evaporative...
  • Post in thread: What voltage to charge at to get to 90%?

    for my battery to battery, I have a short run from my vehicle battery, then about 6ft of 1/0gauge. I have not measured with a DVM, but I have my Smart Battery Sense, connected directly to the bank of the 4 cells.
  • Post in thread: What voltage to charge at to get to 90%?

    Held? you mean like setting an adaptive or limited "absorb" time on my victron stuff? Should I do this? how much time is good? It seems like my battery monitor needs to be configured correctly and calibrated. Because it seems to get confused. Its only as good as the parameters I feed it...
  • Post in thread: What voltage to charge at to get to 90%?

    When all is setteled, it seems that the current voltage (thats what you are asking for, yes?) is 3.47. Which is a little higher than I would like, so I am slowly lowering what I have the chargers feeding it
  • Post in thread: Different capacity cells in one system - a few questions

    I have 4 230ah cells and 4 240ah cells. My system is 12v. I assume I need 2 BMS' and I treat the different cells as two batteries, and wire them in parallel into my main busbars? Then can I charge and discharge them all at once? Or can I do one bms, and wire the 230 call parallel with the 240...
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