Noisy Phoenix Charger

I have a Victron Phoenix 12/30A Charger that I believe was purchased in about 2016. It works fine, but it’s a bit noisy and cycles when it’s maintaining the batteries while I’m plugged in to shore power. Is this normal? Doesn’t it seem like the unit could get quiet when it’s just maintaining?

I have the same problem. When the battery is full the charger fan does not calm down. Phoenix charger 24 volt / 25A

I ended up decommissioning mine and using a newer blue smart charger.