All I know is I have been using my PD9260C since 2009 for my 255AH Battery bank and they are still doing well. They are just now starting to fall abit on performance..
Although the DESULF mode only uses 14.4VDC verses what other smart mode converter/charger use this has been a blessing for me as I was forced into LED LIGHTS due to RFI issues with my HAM RADIO OPS that did not have built-in DC REGULATOR circuits that let them operate well within a 9-30VDC system. My cheap LED BOARDS are speced at 12-14VDC operating DC Voltage.
So far none of these boards have popped any large numbers of three LEDs in a roll on the board. I have one board that has two sets of these three led's OFF now since 2009 install.
My setup has a good external DV VOLTMETER setup and I have seen the system go into DESULF mode many times...
I don't know first hand about your other statement as only going into BOOST mode after 30 hours or so. My PD9260C setup goes to BOOST mode when I first turn it on and if the batteries are fully charged already it then drops back to Normal mode in a few minutes. I have seen it go to BOOST mode on its own with my meter monitor but never really did any timing on it...
I am usually in OFF-ROAD mode running off the batteries during the one day/night run and then using the PD9260C for three hours the next morning running from my 2KW generator setup to return my 50% discharged batteries back up to their 90% charge state..
Roy Ken
