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Hello,
during the last days I observed a behavior of the Multiplus-II that I cuold not explain. Maybe someone else can:
- multiplus-II configured as ESS (Venus 2.20 + FW 450)
- battery is in float, 100% SoC
- stable energy surplus => grid feed-in (-500W or so)
Here I see short discharge pulses and (less frequent) charge pulses => see figures below.
Any idea why this is happening?
THanks & kind regards - tullsta
First thing first, please update the multi to the latest firmware and see if the issue still exists.
Remember you will lose settings, so save them first:
https://www.victronenergy.com/live/updating_firmware:updating_ve.bus_products
hi, i have the same problem on MultiPlus 48/3000 / 35-50. I have version FW 433, another FW is also updated (CCGX, MPPT...). Version FW 453 for MultiPlus is not. Will there be a new FW version for MultiPlus 48/3000 / 35-50 soon? Thanks Ondra ( apologize for my English, i use google translator :-) ...)
Hello Guy,
thanks for the suggestion. Seems like udating to 453 did make the behavior much smoother and solved the issue.
Thanks & kind regards - tullsta
Hello,
realized that during the periods where I have permanent energy surplus I again get short discharge pulses on my multiplus-II => see plots below.
I will update the firmware to the latest (currently running 454 and Venus 2.33), but can anyone eventually explain these pulses?
Thanks & groeten - tullsta
Hello,
unfortunately I have the same issue. I have a stable grid feed in of > 1.000 W and the MultiPlus II is switching between Discharging and Float. Venus OS is on version v2.92~3.
Is this a bug or setting issue? I have enabled ESS with Optimized (with BatteryLife).
@mr-manuel , did you resolve the issue?! i dont know what else to try.
This is one of those strange ones where some managed batteries do it and some don't.
So from what I have seen it would seem it depends on the battery. On the one system as an experiment, switching off BMS control (battery bank of sufficient size) we switched to a shunt and the system was stable.
