Look Here
In the end, the safe use of LiFePO4 depends on the battery management system. (BMS)
The tasks include:
-- Cell balancing. Huge issue for those who want to mix and match their own cells.
-- High volt shutoff. That is, too much voltage from the charger.
-- Low volt shutoff. That is, too much load, too long.
-- Low temperature protection. That is, no charge when the battery is below freezing.
If this is REALLY built into the BMS, then you are close to plug 'n pray. If not, or if of dubious quality, then you will have to add.
If you look at 2.7.2, REDARC's proposed typical LiFePO4 installation, you will note that they add a brute force low voltage shutoff relay. You can certainly do the same thing on the charge side, for high voltage.
https://cdn.accentuate.io/12384232715/41536345035/BCDC Dual Input Instruction Manual.pdf
To the proposed question, the REDARC profile is a bit higher in voltage than I would have expected, but it proposes to protect the battery by cutting the amperage. This will work, if it works.
I would speculate that REDARC, like everybody else, is mere modifying the settings on their three stage charger to fit the needs of a LiFePO4 battery, which really only needs a two stage charger - on and off. But if they drop the absorb and float amperages low enough, they can achieve the same effect. Trick is to get your battery manufacturer to sign off, in blood, that they find this profile acceptable.
The advantage with Stark is that you are dealing with the gentleman who holds some of the BMS patents used by others in the industry.