Victron BMV 712 Shunt Charge Voltage setting. Battery, 240v charger or BCDC charger float value?

Have a look at this FAQ, personally in mobile applications I use 0.2V lower than absorption setting on the charger but that is mainly due to solar charging requirements. If you fit solar in the future then you need to use 0.2V below absorption.

https://community.victronenergy.com/t/shunt-battery-monitor-jumping-to-100-or-reporting-a-high-soc-when-the-volts-are-low-and-or-the-bms-has-disconnected/88