A friend has this setup problem . The growat  only charges the lithium to 77% 53.3v not more and the last charge light on the lithium does not light up also indicating the lithium is not charged to full . 

We set the charge from solar and utility at the same time .

Under battery we used lith and 52 protocol .

Any advice will be appreciated 

What voltage and charge current settings did the BMS apply? i.e. what is set currently in program code 2, 19 and 20

If I remember right 2 was 40amp but we cant set 19 and 20 as 05 battery type is set to li and protocol 52 so proventing us from doing  setting on 19 and 20 

Edited March 6, 20233 yr by GMAC

You can't change any of the three settings if you use Li Protocol. All I was interested in are the values that are currently set. If 2 is set to 40Amp, then the Li Protocol is definitely not correct as it would be at 100Amp set by the BMS and you wouldn't be able to change it.
Check the values again. Based on this 40Amp, and if that is the case, then the BMS comms are not working.

On 2023/03/07 at 9:39 AM, zsde said:

You can't change any of the three settings if you use Li Protocol. All I was interested in are the values that are currently set. If 2 is set to 40Amp, then the Li Protocol is definitely not correct as it would be at 100Amp set by the BMS and you wouldn't be able to change it.
Check the values again. Based on this 40Amp, and if that is the case, then the BMS comms are not working.

Yes it's 100amps and  can not be change on li setting .

After a few phone calls we got advice on how to fix  the issue . 

We were told that for some or othere reason the BMS stops the charging in this case at 77% so the only way to fix this it to change setting to use and set bulk and float to 53.6 charge  the lithium up to 100% then set the setting back to li 52 protocol . This so far has fix the problems . 

Thanks so far for the help 

3 hours ago, GMAC said:

After a few phone calls we got advice on how to fix  the issue .

Have been having the issue ever since I got my combo which is pretty much the same as yours.
You will notice over time the SOC will get to 100% but with ever lower Voltages. Eventually it will be at 52V or below. 
The only fix, short of taking the battery to Hubble, is to use Voltage settings in USE mode for a couple of days which seemingly resets the BMS calibration. After that you can use Li again until the next time.
I normally do a couple of days of USE mode cycles and then go back to Li mode. 
This is an inherent BMS issue it seems which Hubble supposedly fixes with a Firmware update. That update reduces the battery capacity at the same time. So I doubt the origin of this drifting Voltage is actually fixed, seems more like a work around.
My battery has 560+cycles now and as long as I do this "calibration" procedure every so often, the battery continues to charge to 110Ah and continues to perform as it should otherwise.

On 2023/03/08 at 3:36 PM, zsde said:

Have been having the issue ever since I got my combo which is pretty much the same as yours.
You will notice over time the SOC will get to 100% but with ever lower Voltages. Eventually it will be at 52V or below. 
The only fix, short of taking the battery to Hubble, is to use Voltage settings in USE mode for a couple of days which seemingly resets the BMS calibration. After that you can use Li again until the next time.
I normally do a couple of days of USE mode cycles and then go back to Li mode. 
This is an inherent BMS issue it seems which Hubble supposedly fixes with a Firmware update. That update reduces the battery capacity at the same time. So I doubt the origin of this drifting Voltage is actually fixed, seems more like a work around.
My battery has 560+cycles now and as long as I do this "calibration" procedure every so often, the battery continues to charge to 110Ah and continues to perform as it should otherwise.

Thanks sound like Hubble is not as perfect as they say it is . 

Looks like my friend is stuck with constantly changing setting every time this Hubble decides to go out of calibration . Guess this is the main reason why I went for a more simple cheaper setup 

1 hour ago, GMAC said:

Thanks sound like Hubble is not as perfect as they say it is . 

Nothing is perfect, except marketing, which seems to cause people's emotions to supersede reality 🙃
It's easier to fool a man than to convince him he has been fooled