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Old 08-05-2020, 02:29 PM   #1
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WFCO-did it!

Because of the storm, we were without power in our camper for about 20 hours while staying at my Nieces house. We have a 5 year old group 31 battery, and were plugged in to the TV, which has 2 6 year old H6 batteries. When the power came back on, I waited a couple of minutes, then checked the camper voltage............Wallah! 14.4 volts! This is from the stock converter. I was surprised to see that. I then checked the amps going to the camper battery and even after 10 minutes has gone by it was putting 22 amps back into the battery. Just for laughs I clamped the gauge around the TV cable and it read 2.6 amps. That might not be right because both the hot and ground wire go through the cable. After about 2.5 hours it stepped down to 13.6 volts. In 4 seasons of our other camper I got 14.4 volts once. I was just surprised to see this. Anyone else ever get to 14.4? Jay
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Old 08-05-2020, 07:59 PM   #2
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Originally Posted by Jay2504 View Post
snip....... Anyone else ever get to 14.4? Jay
Not from my original 2018 OEM WFCO, never went into "Bulk Mode" when needed.

After installing the Progressive Dynamics 4655L MBA Wildkat 55 Amp "Up-grade" Converter/Charger I was back into "Bulk Mode" business!

There are a number of JOF threads on the subject of the WFCO's poor performance and never operating in "Bulk Mode" (14.4Vdc).

Jay, maybe your 2020 Jay Flight came with a redesigned WFCO unit.


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Old 08-05-2020, 09:36 PM   #3
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My Inteli-Power 9200 Power Converter puts out 3 different voltages, one of which is 14.4 boost. I have a voltage display and noticed that a little after a year it wasn't going into boost mode. I did some troubleshooting and contacted the manufacturer. As it had a 2 year warranty they shipped me a new one. Has worked perfectly ever since.

The moral of the story - you should have a constant display of battery voltage. You will easily know if things are charging properly.
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Old 08-05-2020, 11:47 PM   #4
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I have a plug in voltmeter/temperature plugged into the power port in the bedroom all the time. I hope that WFCO did redesign their converters compared to my previous 2016 camper. IIRC the battery was reading 12.3 volts a little bit before the power came back on. Earlier that day I ran the TV for about 20 minutes. In the past I have seen 20 amps (for a few minutes, quickly falling off as the camper battery voltage climbed) but did not measure it except to say that the truck voltage had fallen back to 14, but not back to the voltage (13.2?) that it gets pulled back to when the ECM thinks the battery is charged during day time driving. Jay
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