Back in the day when I worried about lead acid batteries ... (Did I just write that?) Lots of Tiger owners spat on the ground at the mention of Progressive Dynamics because, while while the charger would get up to the 14.xV range needed for AGM, etc., it then immediately dropped to float, leaving out the long high volt/low amp absorb stage that is so useful for lead acid. Why? If we assume that their engineers are not idiots, I would suspect it is because they realized that the average US RV owner spends almost every night connected to shore power. In contrast, the overland/expedition camper almost never connects to shore power. A lot of Tiger owners spend a lot of time boon docking and thus they were unhappy about the charging performance of several PD products....
So it's a compromise designed for RVs that spend most or all of their time hooked up to shore power. It's primary function is as a power supply for the 12v systems in the RV, but thanks to the goofy conservative charge profile, can be hooked up to shore power indefinitely without cooking lead-acid batteries.
It looks to me like the standard PD might actually be a better fit for the Battle Born than the PDL. I wanna know what that PDL does after the lithium battery reaches 14.6v...and naturally, the marketing droids (who obviously long ago staged a coup and took over) at PD don't tell us. Even in the bloody manual, they don't tell us.
I doubt it just shuts down - PD makes power converters to supply the 12v loads in RVs, and they can't very well do that if they just shut down when the battery hits 14.6v.
That is why I am such an advocate of solar and inverter/chargers, like the Magnum, which have better and user modifiable charging profiles.