Endurance' Board

thick copper?
RE: Nächstes Projekt: Batteriespeicher für daheim

Could be wrong measurement or bad connection - I would monitor if always the same cells are showing the higher resistance.

All cells will reach the 4.1 - it is more about that the ones with…

thick copper?
RE: Nächstes Projekt: Batteriespeicher für daheim

Could be wrong measurement or bad connection - I would monitor if always the same cells are showing the higher resistance.

All cells will reach the 4.1 - it is more about that the ones with…

will took off the cooler and see if goes down, i did some custom cooper plate with thermal mass strange !
"Cell 5 and 9 I would monitor the resistance" these could be bad connection ?
cell 13 and 14 unfortunately i didn't get 1 gen1+gen2 extra modules they…

BMS temp is already pretty high - how is this currently cooled?
Cell 5 and 9 I would monitor the resistance
And don't be surprised if it jumps to 100% soon as the voltage is close to max.

I have copy from your settings :), what you think ?
Now I have lots of new info to study !!!

Did you check cell voltage? If this is the first charge the SOC % might be wrong. So in case cell voltage is on higher side it would charge slower.

But the picture in sunny portal looks OK - all available goes into the battery.

Did you check cell voltage? If this is the first charge the SOC % might be wrong. So in case cell voltage is on higher side it would charge slower.

But the picture in sunny portal looks OK - all available goes into the battery.

I only did a full charge (let the BMS balance) discharge, fullcharge cycle to calibrate at the beginning. Since this year I lowered the balancing start voltage as it seems some cells are no longer that optimum. I need to check them individually and maybe…

The SI gets all signals from the BMS (via CAN) and the SMA Homemanager/Sensor (via LAN) measuring if you feeding into the grid or consuming. So no need to connect extra current sensors etc. to the SI.

Could provide my SunnyExplorer setting this evening…

Is it not powering the house at all? What about charging the batteries or is your PV just feeding into the grid instead of charging?