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  1. J

    SC48120-MPV - Solar Assistant logging possible?

    I have 3 Growatt 5000ES's hooked up to Solar Assistant currently, Just added an SC48120-MPV and wondering if it can be added? I saw someone talk about hooking it up to solar assistant, but not having any luck. There is no option for the Growatt SC's in Solar Assistant, Also tried connecting the...
  2. J

    Polarity of EATON 250Vdc shunt trip breaker

    I have a couple Eaton HFD2125 125A breakers but can't find the datasheet. Does anyone know if polarity matters on this style of breaker? Like should my battery (+) be connected to the top or the bottom of the breaker? I vaguely recall reading that these big breakers have a magnet to force the...
  3. J

    TE Connectivity contactor getting stuck?

    I've noticed that my "LEV200A4ANA" will get suck closed/on after a while. A few times when I tried to manually turn it off after about a month of being on it won't turn off. I can get it unstuck by turning it on and off several times, but that defeats the purpose of it. Is it a known thing that...
  4. J

    New Growatt ES5000 safety issue?

    Maybe I just missed it when all the other Growatt safety stuff was going down last month, But I just noticed something I wasn't expecting with my Growatt ES 5000(USA) I believe this is an artifact of originally being an EU design. Both the Solar panel + and - inputs are connected directly to...
  5. J

    Growatt 5000es - Simple protection from lost neutral?

    Was thinking about this on the way to work today... I think a setup like this gives you reasonably good protection from a floating neutral with a 240v inverter? No flipping / tripping of a breaker results in a floating neutral. (tripping the transformer breaker cuts all power to the load...
  6. J

    Calibrate a Chargery BMS16T

    Not sure if my expectations were too high, but every cell is 3.345 to 3.350 (yes my meter is calibrated) And yes I have double checked the crimps on the balance wires, they are solid. (even though in my head this shouldn't matter w/ balancing turned off?) Concerned about the 58mv difference...
  7. J

    Containing a battery pack meltdown.

    Any thoughts on something like this: 15kwh 14s 18650 battery pack, Put it at the bottom of a 55 gallon steel drum put a couple 32 packs of water bottles inside the barrel above the batteries. Cut a hole in the lid and install a cooling fan. If all the other safety measures failed for some...
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