diy solar

diy solar

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  • Post in thread: Solar pv voltage too high

    Doing this for the moment.
  • Post in thread: Solar pv voltage too high

    What watt said except mine in the 48v version. Voc is 45.8v isc is 8.93a.
  • Post in thread: Solar pv voltage too high

    Ok thanks. I'm new and this is my first setup so bear with me but I was thinking you wanted to be higher in the voltage range (but within limits) to account for cloudy days and shading? Or do people just not do it because of longevity reasons as the first guy mentioned? Do voltage and amperage...
  • Post in thread: Solar pv voltage too high

    It's good for 80a so 4p will be ok. But I will be having to do a rewire (including breaker) as you mentioned.
  • Post in thread: Samsung sdi ess mega 3.3 bms

    Does anyone know if the bms software was ever figured out for these?
  • Post in thread: Solar pv voltage too high

    Basically like an alternator in a 12v system does? At least in my situation I will need all of the amperage they can give all of the time though. So the load would always be max. Just the battery charging by itself should handle all they can give, but I'm also running a "tiny house".
  • Post in thread: Solar pv voltage too high

    I found my answer to the second wiring option question. I was way off in how I thought it worked. It would only end up being a overall voltage of 80v. (the lowest voltage in the parallel string)
  • Post in thread: Solar pv voltage too high

    Ok so I recently got my setup all done only to find out my voltage is a bit too high. The first few days of operation were pretty cloudy and falsely made me think everything was ok. When the sun is out I'm at 120v ish and the mppt on my growatt is only good for 60-115v. I was running a 3s3p...
  • Post in thread: Solar pv voltage too high

    Ok thanks guys. Is the second wiring configuration possible until I do the rewire? If so would the voltage be about 107 if my math is correct? I'm going to have to order some stuff to do the rewire.
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