So I am trying to workout why my Multi stays in absorption mode (when batteries are 100% SoC), sits at roughly 28V constantly and never goes into float mode. I would like the batteries to sit at a lower voltage over long periods, around the 26.5V-27V to prolong the life of the batteries, even if I lose a few percent.
I have DVCC turned on in my Cerbo.
-2 x Pylontech UP2500 batteries - Nominal Voltage: 25.6V
-Smart Solar MPPT 150/100 (Not yet operating as no PV array hooked up yet)
This is going to be an off-grid system but until I install my PV array I just have mains plugged in at all times.
Current Multi configuration:
-Absorption Voltage: 27.8V - As per the Voctron/Pylontech setup guide for 8S LiFePo4.
-Float Voltage: 27V
-Absorption time: 1 Hr
-Lithium mode on.
-Fixed charge curve.