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I did top balance my 8 Eve 280Ah A grade cells to 3.6V. Then I assembled my 2P4S pack and it hadn 14.4 volts. Today I checked again while assembling the setup with BMS etc, and the voltage was dropped to 14.2V. Is this a normal behaviour?

I am a bit confused about how to wire my setup. I have a REC ABMS Victron compatible, and a Cerbo GX, a Victron MPPT and a Victron DCDC charger. I want to have seperate contactors for charge and discharge. The non Victron REC shows this wiring, having charge and discharge contactor seperate...