Phil, I believe Jon R is saying that THOSE (Absorb Charge & Bulk Max Charge) terms are relevant to Lead Acid batteries, and not really the right language to use when discussing LiFePo4 batteries. Yet the terms are still there because our charging gear can charge both types.
For LiFePo4 we don't care about Bulk/Absorb charge times. We use the settings (Absorb Voltage) to set the voltage level, but don't need an "Absorb" phase in the charge. Essentially, we Bulk charge and then float. 2 phases. Traditionally, good Lead Acid chargers go through more phases (bulk, absorb, float, Equalize) to ensure good charging.
Practically, that means we set Absorb time to be as short as possible and Equalize time or voltage low enough that it never kicks in.
Amperage going into the batteries decreases as the battery fills up, naturally resisting getting more charged up. Lithium batteries have far less such resistance than lead acid batteries, hence we don't need an absorb phase.
Make sense?