LiFePO4 16S 48 Volt Standby Battery Voltage

What is the ideal everyday voltage for a LiFePO4 16S 48 Volt EG4 Standby Battery Bank with built in bms?

I have a hybrid inverter with solar that is grid tied and sits charged most of the time except when needed when the grid goes down. The system exports any excess power above what the batteries will take.

What charging voltage should the battery bank be set at for long life of the standby battery bank?

If it was your system what would you set the charging voltage at?

I know that there might not be any single answer but I need to know as not to cause excessive damage the lithium battery bank staying charged most all of the time?

If it were mine 53.6 to 54

I am about to replace lead acid with lithium for my standby system and am interested it settings as well. Any more comments? Or suggestions?
It is an independent system. I am on stand alone power. No mains at all.

I have absorption charge set to 55.4 and float at 54.0
With just passive balancing from the Overkill BMS, my delta on all four batteries rarely goes above .06

I have an Outback system using SOK batteries setup similar to yours. My system
On a daily basis my batteries are only charged from the Mate charge controllers powered by solar. My sell voltage is set at 54V and the voltage at the battery terminals will occasionally hit 55V peak but is usually ~54.5V during power sell mode. Rest voltage in the early morning is consistently 53.2V and all individual cells are + 0.002V so the batteries are well balanced. This voltage suggests the batteries are in the high 80% charge state most of the time but the battery BMS and the Outback system claim 99-100%. I only use the batteries for power outages which is a rare event. I do run the batteries down to ~50% every 6 weeks or so then let the solar charge controller bring them up to "full" at which point I use the inverters to do a full topping charge of 56V.
So far the system is working well.