Float vs power supply mode ip22 + LiFePO4

DIY
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1

I’m using a Victron IP22 charger 12/30 (3) with a 12V 120Ah LiFePO4 battery. The battery specifications indicate a charging voltage of 14.6V. Once the battery is fully charged, I plan to power my devices through the system while connected to AC power.

I’m seeking clarification on the optimal operational mode and voltage settings for this scenario:

Should I use float mode or power supply mode when powering devices after the battery is fully charged? (The manual states power supply mode can be used connected and not connected to a battery, but does not explain any more than that.)

What is the recommended float voltage setting for a LiFePO4 battery in this configuration?

Would maintaining the system at the full charging voltage of 14.6V be advisable, or should I use a lower voltage (such as 13.5-13.6V) for continuous operation? There are a lot of conflicting answers relating to this relating to float mode. Some say above charging voltage and some.

both modes seem to work, but not sure which to use and why ?

Cheers

rich

2

14.6v seems high for LifePo4 batteries, are you sure that’s correct. At that voltage I would expect to see the BMS shutting down on a regular basis, which is not good for a LifePo4 battery as it will shorten it’s life.
I charge my Fogstar battery at 14.2v for the bulk period followed by 30 mins absorption then float at 13.5v. this is to maximise both capacity and life. I also don’t leave it on float 24/7 if it’s not being used.
Also I will leave the battery at 80% and not worry unlike LA batteries where I kept them as close to 100% as much as I could.
It’s difficult and it took me a while to get out of the LA mustn’t leave it discharged and must charge to 100% mindset.