sunshine_eggo
Happy Breffast!
OK need to check into this futherb after next week. I’m gone the whole week and decided to shut down the system completely.
BUT. I do not understand how the wrong setting inside the dvcc and BMS causes the relay of the BMS klick every second.
This will do that:
![1684107139842.png 1684107139842.png](https://diysolarforum.com/data/attachments/149/149235-4e98a2f216782fbd133145b1ad93c4dc.jpg)
PS. Last my cell OVP was set at 3,6V in the BMS and 57,6 (3,6 x 16) in the dvcc
This is almost guaranteed to cause a problem.
Charge voltage must be below the cell OVP voltage. Did you alter the driver default voltage of 3.45V?
What I understand is that between the low voltages and about 3.8 - 3.9-ish volt there is no way to tell if cells are unbalanced. So why would the BMS start clicking?
3.8-3.9 is over volt.
Voltage does not correlate with imbalance in the 3.1-3.4V range.
Also I was tricked by the voltage at low stages. Now I see I need to top balance better (next week). Beginners fault assuming that all batteries within one delivery batch are charged equally…
Recommend you follow the guide.