Hi all, it's been around 2 months since I installed my new system which includes:
- 2 x Quattro 5000/70 120V inverters
- 2 x Victron 250/100 SCCs
- 2 x Victron 250/60 SCCs
- Cerbox GX
- REC Q BMS
- 2p16s battery bank (3.2V 420A)
The last 2 days we really sunny and I found the REC BMS was not good in balancing my battery pack at higher voltages
As you see it's almost 0.35V difference between the MIN and MAX cells.
Is my bank too big? 2p16s battery bank (3.2V 420A) ~ 40kwh (though I don't think those aliexpress batteries can provide 100% capacity). Any BMS users, do you use a separate active balancer?
Before the last 2 days it was mostly cloudy and at lower voltages the cells looked balanced
Thanks a lot in advance!