EG4 Community Forum

Anonymous
Joined: November 8, 2025 2:08 pm
Topics: 3 / Replies: 14
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RE: Firmware for communicating with EG4 LL v1

i modified a cat cable to only have pins 7 and 8 now the breaker doesn't trip on the new batteries. I have this cable connected from the 3rd EG4LL-S...

10 months ago
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RE: EG4 wifi dongle unable to connect

@jared Hi Jared, I just installed a flexboss and gridboss yesterday and had to reset dongle thinking it might be the problem and now I can’t dongle ...

10 months ago
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Replies: 0
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RE: Enough Batteries or Incorrect Setup

There was a post on here of all batties, concerning voltages and usable part of batteryShowing the range to use, based on cell voltage & SOC Tha...

10 months ago
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RE: 6000xp bug in charge controller setpoint voltages with open loop

@dtbaker61 Have you ever watched Off Grid Garage on youtube ? He has done lots of testing and graphing and explaining the results of voltage , capaci...

10 months ago
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RE: 6000xp bug in charge controller setpoint voltages with open loop

@ouijifour setting 100% at 55.2 will cause problems because you are never getting to the point where the voltage curve is steep enough to be accurate ...

10 months ago
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RE: 6000xp bug in charge controller setpoint voltages with open loop

@dtbaker61 My bms is programmed to reset to 100% at 55.2v . I understand what you are saying though that many bms are programmed to reset the SOC at 5...

10 months ago
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RE: 6000xp bug in charge controller setpoint voltages with open loop

@ouijifour , you want to use the absorb = 56.2 , not 55.2 .... it is important to get EOC high enough to reset BMS to 100% and balance. firmware o...

10 months ago
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RE: 6000xp bug in charge controller setpoint voltages with open loop

@dtbaker61 Tomorrow I am trying lead acid 55.2 v absorb 53.6 float and 54 v for equalize 0 days and 0 time. I will see how that goes.

10 months ago
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RE: 6000xp bug in charge controller setpoint voltages with open loop

@ouijifour , if you can get the BMS communicating correctly between battery and inverter, you can use 'lithium' and manage setpoints by % since the ba...

10 months ago
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RE: 6000xp bug in charge controller setpoint voltages with open loop

@dtbaker61 I see in your settings that you have Veq higher than your float ? Does this do some trick to the firmware to make it work better in lead ...

10 months ago
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RE: 6000xp bug in charge controller setpoint voltages with open loop

yesterday I had closed loop and for some reason it went up and down 5 times from 55.6 to 53.9 v. I decided to go back to Lead Acid settings and it did...

10 months ago
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RE: 6000xp bug in charge controller setpoint voltages with open loop

@ouijifour , version= ccaa-190D0E seems to be "fairly good" most of the time. I see a CC/CV charge curve "as programmed" most of the time, but have no...

10 months ago
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