question

anon4867 avatar image
anon4867 asked

Intermittent charging

  • screenshot-20210404-162154.jpgHi, I'm new to solar but I don't think my system is working correctly
  • My system is 8X110w sunpower solar panels brand new in 2s4p format and a new 50A victron mppt controller charging a 24v 300Ah battery
  • My problem is that I'm seeing some inconsistent charging coming into the system, I just went through and re-checked all the wiring and put on new mc4 connectors as well as tested the system with only a two pair of panels and the same "burst" of amperage is happening. The mppt chart shows the incoming going from zero to a few amps for only a second.
  • It is overcast here so I know I should be seeing about ten percent efficiency but I'm not even close to that, Yesterday I only pulled 90wh
  • screenshot-20210404-162146.jpg
mppt charging
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1 Answer
klim8skeptic avatar image
klim8skeptic answered ·

What is the battery voltage at?

Has the battery been fully charged and balanced?

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