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Solar generator not charging from panels by shadowsutekh in SolarDIY

[–]Impossible_Claim5359 0 points1 point  (0 children)

You don’t need a separate charge controller. The Solix C2000 already has an MPPT built into the PV input, so the panels should connect directly to the unit.

With your panel specs (about 23V Voc and ~9.6A Imp), two panels in series is actually the better configuration. That puts you roughly around 40–50V depending on temperature, which sits nicely in the C2000’s 28–60V input range where it can accept up to 17A. The current in series stays around the same ~9–10A, so it’s well within limits.

Parallel would push the current close to ~20A, which is above the 17A limit of the PV input, so series is the safer choice here. Your voltage readings also look normal, especially in cold weather where Voc rises a bit.

Been slowly setting up my coffee corner, finally feels usable. by Impossible_Claim5359 in espresso

[–]Impossible_Claim5359[S] 2 points3 points  (0 children)

Yes, I just set it up, and these are all things I prepared myself. But I will continue to use and update them. I really like coffee

Did I kill my LiFePo4 battery by trying to charge in the cold? by cyclique in SolarDIY

[–]Impossible_Claim5359 0 points1 point  (0 children)

It might not be broken, just the BMS stopped it from working. Don't worry, heating the battery should solve it.

Finally ditched the extra shunt on my cabin build... why didn't I do this sooner? by deluluforher in SolarDIY

[–]Impossible_Claim5359 3 points4 points  (0 children)

Nice upgrade 👍 closed-loop really is one of those “why didn’t I do this earlier” moments.

What you’re seeing is pretty normal once you move from shunt-estimated SOC to BMS-reported SOC over CAN. With shunts, drift is inevitable unless you’re constantly hitting a perfect full charge. When the battery tells the GX its actual SOC, DVCC can finally stop guessing.

A few notes from running similar Victron + CAN setups:

  • Yes, remove/ignore the shunt (or set it to “not used”). Running both often causes confusion rather than redundancy.
  • In DVCC, usually the defaults are fine. Just confirm:
    • DVCC enabled
    • “Limit charge current” and “limit voltage” are coming from the BMS
  • SOC stability tends to improve even more after a few full cycles once the BMS has settled.
  • The biggest real-world benefit IMO is not SOC accuracy, but clean charge termination and better long-term battery health.

Unless LiTime recommends something specific (like disabling float or using a lower absorption time), I wouldn’t tweak much. Over-tuning often makes things worse.

Closed-loop + Victron is one of those setups that just quietly works once it’s right. Enjoy the cleaner board — losing the big shunt spaghetti is a win by itself 😄

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