Offgird system with 5kVA Multiplus 2 and lead gel battery.
The Multiplus 2 that I installed makes a humming noise when it charges the battery through the generator. I understand that the hum it makes is that of the inverter transformer and I know that in the Victron community there are various complaints about that. The problem is that it is not a constant hum, it is a hum that varies and the charging current varies too much depending on the hum.
I am attaching an audio so that it is better understood. I also recorded a video showing the situation with the charging current.VE.Bus DC voltage and current.pngVariation current.mp4
I know that when the inverter charges the battery through a generator, it sometimes has a variation in the charging current, but it has never happened to me that the current varies so much and is precisely associated with that noise from the multiplus.
That is normal? Could it be an inverter problem?
I'm worried about how this will affect the life of my battery.