Battery SOC When topped up by Solar

[houseofancients]

HI,
Are there any issues glaring out regarding the BMS settings?

Thanks

Looks like the default settings, with changed ov protection ( which is charge voltage), like looks fine to me

 

[jassdhali]

I have a bias for setting protection limits to actual limits. 2.5V low and 3.65V high. No damage occurs to cells operating in this range, so there's no reason to force the BMS to narrow this range.

Of course that requires you set the total voltage protection limits to 16X these values.

Set the recovery values to something sensible.

If these are the defaults established by the manufacturer, change at your own hazard.

You program the equipment to operate inside this range.

Cell diff pressure protection of 1V seems pretty extreme given that the cells have a 0.3V primary operating range (3.1-3.4V). I would adjust this to 0.5V

I will look into these values & understand their exact meaning & then move forward.

Only been on this journey since March, so a very steep learning curve.
Thanks

 

[jassdhali]

Looks like the default settings, with changed ov protection ( which is charge voltage), like looks fine to me

Thanks for the feedback.
I will try to understand these more to expand my knowledge.

 

[jassdhali]

I was looking at the custom view on Sunsynk Connect app as below.
Only showing the Battery Voltage, SOC & BMS Voltage.


Is there an explanation for the discrepancy between the BMS voltage & the Battery Voltage?
Is this a natural variation taking battery temp & compression into account.?

Or is that just a daft question. Thanks for your time