PD9260 Convertor Never Goes To 14.4V

Sometimes they have to be tricked into going into boost or manually forced

Never? goes to 14.4 volts. I assumed you waited an hour....

My PD9260C Converter seems to always start out at 14.4VDC then drops back to associated charge after it reads the battery status I guess...

Maybe all this happens because it is a C model ???

Roy Ken

Ron Nielson wrote:
If I understand correctly, the converter doesn't START OUT at 14.4, but climbs to 14.4 in some amount of time? Not exactly what I thought should happen.

Ron, I was concerned when I did my first test with the PD9260C (with depleted batteries) and only read 13.65 - 13.70 volts at the batteries in bulk/boost mode (steady green LED on the pendent). However, once I noticed I was getting 55-58 amps of charge current (using my clamp-on ammeter) I ignored the voltage and broke into a big smile :)

My infamous WFCO8955 would never go into bulk/boost mode :( In absorption mode (13.6v) I would read 13.2 volts at the batteries with about 18 amps of charge current at the start of the charge with depleted batteries. The voltage would eventually peak around 13.72 volts many hours later when the batteries were almost fully charged.

With the PD9260C, I've noticed voltage eventually peaks (hours later) around 14.45-14.5 volts (in bulk/boost mode).

If the batteries are low enough to take all the amps it is putting out, the voltage will rise over time till it hits the target number. That is not uncommon.

Having said that, could there be OEM versions of the PD which don't have the 14.4 stage activated? They might need the pendant to be plugged in? I dunno, just throwing it out there. If it's an aftermarket PD which you installed, I would sure think it is capable and ready to go to 14.4 as soon as it is able to get there.

If I understand correctly, the converter doesn't START OUT at 14.4, but climbs to 14.4 in some amount of time? Not exactly what I thought should happen.

I just installed a new PD9260C in my TT. With both of my 24 batteries significantly discharged (< ~20%, yes, I know not good for the batteries--lol!!), at the start of the charge in bulk/boost mode (LED steady green at the pendent) I read about 13.65-13.70 volts (with 55 amps of charge current) at the battery terminals. The voltage quickly rose above 14 volts in less than an hour.

If you don't read at least 14 volts at the battery terminals within an hour or so, then it's possible you're not in bulk/boost mode.

Trailer not plugged into shore power. I turned on several lights for several hours. Turned lights off. No other loads a/c trailer in storage. Voltage at 12.3. Then plugged into shore power. When electricity connected to converter after the delay in the surge guard, about 2 minutes, voltage was 13.6.

No pendant.

I assumed that if converter saw voltage below 12.7, it would output 14.4. Don't understand why it doesn't.

Was the battery really at 12.3 just as you plugged in? If you drove a bit home there may have been enough surface charge to prevent boost.

Otherwise load it down to 12.0 and try again.

Do you have a pendent? What happens when you push the button?