I have a PD9245 with a Charge Wizard and when it is plugged in it stays in the Normal Mode.13.6 with nothing on and when running fans and such it drops to about 13.1 but stays in the normal mode.
The only time that it will go into the Boost mode is when I have been Boondocking with no power for a while and I start the Onan up it will go in to Boost mode at 14.4 until it is back to at least 90 percent.
The only time it goes into storage mode is if is setting home plugged in and it hasn't moved or any power used for a few days.
I Don't know if you have a chart or not but
THIS explains it pretty well.