I have a 15 kW h battery LifePo 280k. It used to have a 7 kW battery from BYD. Replaces one battery with another. The new battery appears in Victron Connect, so the new battery already communicates with the Mú U ltiplus ii/Venus.
However the battery does not charge, from 0A 0v. Are there any parameters I should change in the inverter configuration?
As you have a Venus device, you should also be connected to the VRM portal?
In the advanced page of the VRM portal you should find amongst the widgets for the BMS one labeled “BMS Charge and Discharge limits” Check this widget to see if the charge limit is zero or not. This should be the first step in finding out why your new battery is not charging.