Hi,
What is supposed to trigger the end of Bulk charging?
- Voltage reaching Absorption voltage?
- Low charging current?
- SoC?
- Some combination of the above?
I have a single-phase MultiPlus Compact 24/2000/50 which is AC-coupled to a 2kW Fronius MPPT. Batteries are 300Ah NiFe (nickel-iron).
The MultiPlus is the only device connected to the batteries. There are no other chargers or loads or BMSes.
Six months ago, the MP used to finish Bulk charging and occasionally go into Absorption as scheduled. All good.
But now it stays in Bulk forever (32V, 6A, SoC=85%), continuing charging all night from the grid.
Absorption voltage = 32V
Float voltage = 28.5V
SOC when bulk is finished = 85%
Assistant = Self-Consumption Hub-2 V3 (0182)
Could this be a bug introduced when I last upgraded all Victron software?
If I reload the Assistant, on the first day, it "Disconnects From The Grid At Night" at sundown and starts inverting as expected. From day two onwards it just stays in Bulk, charging overnight.
Thanks,
Mark