The PowerMax LK model (Boondocker is a re-brand) in its standard three- stage mode, does 30 minutes at 14.5ish before dropping to 13.x. (the older model did the 15 minute thing)
If that does not suit, you go to the manual single voltage mode where you dial in the desired voltage and it stays there until you change it. This will not be ideal for many RVers who would rather have automatic charging. However,
14.8v is for 77F (25C) To meet that spec at 35F you would need 15.2 volts. Can't do that with the PD, can do it with the adjustable voltage PowerMax.
So if you really don't care that much and want automatic, go PD and use the Charge Wizard as being the most you are willing to play with, but if you are wanting to do it right and have the temperament, the time, and the interest, get the PowerMax and learn how to use it.
https://powermaxconverters.com/wp-content/uploads/2018/05/PM3-12V-LK-Manual-2018.pdf
