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Old 06-19-2019, 08:16 PM   #1
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Battery is over charging

My 2014 Jayco Eagle keeps overcharging batteries when plugged into a power source. Battery gets so hot that the battery smokes - this occurs after a day of being plugged in to a power source (30 amp circuit). This happened to a brand new deep cycle battery that was just installed. Any help is appreciated.
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Old 06-19-2019, 08:26 PM   #2
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My 2014 Jayco Eagle keeps overcharging batteries when plugged into a power source. Battery gets so hot that the battery smokes - this occurs after a day of being plugged in to a power source (30 amp circuit). This happened to a brand new deep cycle battery that was just installed. Any help is appreciated.
Have you checked the voltage at the battery when it's plugged in?
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Old 06-19-2019, 08:27 PM   #3
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Welcome to the forum.

So everything was fine until the brand new deep cycle battery was installed? What problems were you having that led up to needing a new battery? Are you sure the "-" (negative) battery terminal is fastened to the trailer frame? Have you checked the voltage at the battery from the converter/charger? (Some out gassing is normal if the battery is being heavily charged, but you'd have to know the voltage to determine if it is excessive.)

I'm sure you'll hear from several others that will likely have more helpful comments.
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Old 06-19-2019, 09:17 PM   #4
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I keep a digital DC monitor plugged in to the cigarette lighter (television) outlet in my Jayco. When the converter is charging the battery, the level will read about 13.68 volts. When the converter changes to trickle charge mode, it will read about 13.2 volts.
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Old 06-20-2019, 05:31 AM   #5
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I keep a digital DC monitor plugged in to the cigarette lighter (television) outlet in my Jayco. When the converter is charging the battery, the level will read about 13.68 volts. When the converter changes to trickle charge mode, it will read about 13.2 volts.
Same for me. Never seen my WFCO charger at 14,4 V bulk charge, it is either 13.6 V after using the trailer, or it goes into 13.2 V trickle charge mode after 2 days of no usage. To the OP: Use a volt meter to check the voltage, that will tell you if the converter stays in bulk charge mode all the time, which I think would be needed to actually boil the battery.
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Old 06-20-2019, 05:57 PM   #6
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Converter could be bad over charging the battery. As others mentions check the voltage
The stock converters wfco are junk. I plugged mine into generator and would only show charging at 13.6. When I used my solar panels I was getting 14.4. The battery was around 12.2-12.3 when I tested
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Old 06-20-2019, 06:28 PM   #7
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I am assuming there wasn't a problem with the old battery. Check the battery voltage when under charge. If it meets the specs, then the battery is defective. I had this happen to me years ago. The battery got hot and boiled over. I checked the voltage and all was OK. Nevertheless, the battery store insisted it was my charging system and wouldn't warranty the battery. I left the crap battery on the counter and walked out - buying a new battery at another store. No problem after that.
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Old 06-20-2019, 10:16 PM   #8
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The only time I've seen a battery smoke, it had cells shorting out. A very bad situation.
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Old 06-20-2019, 10:25 PM   #9
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The stock converters are junk. Get one with the better battery charger built in. I was changing batteries every year. Changed the converter. 6 years so far and still going strong. it's worth the cost.
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Old 06-21-2019, 03:39 AM   #10
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Same for me. Never seen my WFCO charger at 14,4 V bulk charge, it is either 13.6 V after using the trailer, or it goes into 13.2 V trickle charge mode after 2 days of no usage. To the OP: Use a volt meter to check the voltage, that will tell you if the converter stays in bulk charge mode all the time, which I think would be needed to actually boil the battery.
And this is the very reason I removed the WFCO for a Progressive Dynamics converter/charger almost as soon as I got it. I did not wait for the warranty to expire. I know this put some items on the TT out of warranty immediately, but at least I know I have a properly functioned converter/charger now.
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Old 06-21-2019, 05:14 AM   #11
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You can check the battery at a good automotive repair shop. If it has a bad cell they can tell.

It could also be a bad converter. I had to replace mine, while still in warranty, for boiling water the battery.
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