BMS showing different voltage to Charger and Shunt

[Backupjack]

I have a 280Ah LifePo4 with a Daly BMS and a Victron Smart Shunt along with a Victron Blue Smart Charger i have just been charging the battery and have noticed the Smart Charger app and the Shunt app are both showing 14.2v and the charger is at Absorption level whilst the BMS app is showing 13.3v i have also tested the battery with a volt meter which reads 13.3v also, does anyone have any idea why the difference in voltage,

 

[chrisski]

I have that same setup and a difference of .9 volts that is not normal.

I can only recommend taking volt readings on the battery terminal, the busbar, on top of a BMS to busbar connection, and on the shunt to battery connection.

I'd also take readings across every cell, add them up and see what you get.

 

[mikefitz]

whilst the BMS app is showing 13.3v i

Perhaps the BMS has shut down the charge path, is the BMS reporting cell over volts?

 

[Backupjack]

Perhaps the BMS has shut down the charge path, is the BMS reporting cell over volts?

BMS settings all seem ok, Charger now in Storage mode and Charger app showing at 13.55v same for the Shunt app the Battery + to Battery - showing at 13.3v with multi meter and still showing 13.3v on BMS app, though battery + to neg bus bar just after shunt is showing 13.55v