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Old 10-09-2018, 09:07 PM   #1
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Battery not Charging via Converter

Good Evening,
I am hoping to good folks here can guide me in the right direction. I have done lots of searching here and across the internet and have not found a solution to my issue. I do have a multi-meter and am fairly handy.

Travel Trailer 2012 26RBKS Coachman Catalina

Battery: Brand New Duracell DC Group 24

My Issue: My battery will not charge while installed in my Travel Trailer.

If I charge the battery outside of the trailer and then install it on the trailer all 12 volt systems work. Once the battery dies, 12 volt systems no longer work.

If the unit is plugged in, all systems work as normal, HOWEVER the battery fails to re-charge.

If the unit is attached to my tow vehicle, all systems work as normal, HOWEVER the battery fails to re-charge.

What I have tried:
- Checked all breakers
- Checked all fuses
- Checked the heavy duty fuse located near the battery, and pictured below. Note that I was unable to find any type of reset button.



Is my convertor toast? What else could it be?

We are leaving for another trip in two weeks and I hope to have this resolved before then.

Thank you in advance to any and all advice!

Chris
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Old 10-09-2018, 09:12 PM   #2
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Check the voltage on the output of the converter with AC on. If it's just the battery voltage, make sure 120V Ac is coming into the convertor. If that is good, check the fuses at the convertor if it has those.
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Old 10-09-2018, 10:04 PM   #3
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Originally Posted by babock View Post
Check the voltage on the output of the converter with AC on. If it's just the battery voltage, make sure 120V Ac is coming into the convertor. If that is good, check the fuses at the convertor if it has those.
Hi Babock,
Thanks for the suggestion.

I just found the link below. I do not believe it is my converter, but I am going to try it. I will get my converter model tomorrow.

Link - https://www.progressivedyn.com/servi...er-converters/
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Old 10-09-2018, 10:08 PM   #4
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You want to make sure the breaker that is feeding the converter is actually working and the connection to the converter is ok.

You can do the test of lifting the cable I guess. If it goes up, it could still mean two things...the converter can't tolerate a small load or the battery itself has failed and is loading down the converter too much.
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Old 10-09-2018, 10:09 PM   #5
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If you do find it's your convertor that has failed, replace it with a progressive dynamics. I took out my stock WFCO after a couple trips and replaced it with a Progressive Dynamics.
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Old 10-09-2018, 10:10 PM   #6
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I'd try another battery first, if you have one.
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Old 10-10-2018, 05:27 AM   #7
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Quote:
Originally Posted by Kf4mnc View Post
Good Evening,
I am hoping to good folks here can guide me in the right direction. I have done lots of searching here and across the internet and have not found a solution to my issue. I do have a multi-meter and am fairly handy.

Travel Trailer 2012 26RBKS Coachman Catalina

Battery: Brand New Duracell DC Group 24

My Issue: My battery will not charge while installed in my Travel Trailer.

If I charge the battery outside of the trailer and then install it on the trailer all 12 volt systems work. Once the battery dies, 12 volt systems no longer work.

If the unit is plugged in, all systems work as normal, HOWEVER the battery fails to re-charge.

If the unit is attached to my tow vehicle, all systems work as normal, HOWEVER the battery fails to re-charge.

What I have tried:
- Checked all breakers
- Checked all fuses
- Checked the heavy duty fuse located near the battery, and pictured below. Note that I was unable to find any type of reset button.



Is my convertor toast? What else could it be?

We are leaving for another trip in two weeks and I hope to have this resolved before then.

Thank you in advance to any and all advice!

Chris
Please read this FAQ on 12 Volt DC Circuit Breaker with Manual Reset.
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Old 10-10-2018, 05:44 AM   #8
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I think you probably have a WFCO converter. Here is a link to the various trouble shooting charts for them. If it turns out that it is bad, I would get with Randy at Best Converter for a Progressive Dynamics replacement unit. He will be glad to help you choose the correct model.

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Old 10-10-2018, 06:25 AM   #9
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Check all of the fuses in the converter. My son in-law had the same problem and found the fuse for the charger was blown.
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Old 10-10-2018, 07:30 AM   #10
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Can't wait to find out what is going on here. It could be in the definition of "everything works" or "fails to recharge"

OP writes...

If I charge the battery outside of the trailer and then install it on the trailer all 12 volt systems work. Once the battery dies, 12 volt systems no longer work. In other words, the battery voltage gets to the panel through the breaker and wiring when the battery is charged

If the unit is plugged in, all systems work as normal, HOWEVER the battery fails to re-charge.In other words, the converter works when there is 120 volts..but it doesn't re-charge the battery

If the unit is attached to my tow vehicle, all systems work as normal, HOWEVER the battery fails to re-charge. In other words, the voltage from the tow vehicle gets to the TT and to the panel...but it doesn't recharge the battery

Now, I guess that it is possible that the converter is only outputting 12 volts so that when plugged in everything works but it won't recharge the battery. BUT that also means that at the same time, the TV is only outputting 12 volts as well. Possible but highly unlikely. It could be a bad battery but the OP seems to be able to charge it with an external charger.

I think we need some voltage measurements under all of these circumstances to figure out what is going on.
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