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Old 05-19-2014, 09:06 AM   #1
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12v battery not charging from shore line power

We have a 2013 294BHS Jayswift travel trailer on a seasonal site. We are having issues with the battery losing its charge within 8 to 10 hours. It is a brand new battery and it is charged at 98% when we put it back on.

We have 15 amp service only for shoreline power. We are new to the RV owning and not sure what we are doing wrong. I read alot on the electrical system on different sites but not sure what we can do to stop dealing with the battery losing its charge all the time. We thought it was the 15 amp service not having enough juice to get the battery charged on the trailer.??

Any help is appreciated.
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Old 05-19-2014, 10:15 AM   #2
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Not real sure just what problem you are having unless your converter isnt working but when I am pluged into a 15 amp circuit when my trailer is at home and I dont have any problem my battery charges but when I am pluged in all my lights work off the converter and fridge and microwave and Tv work off the 15 amp shore power I can't run my AC but can use everything else.
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Old 05-19-2014, 10:22 AM   #3
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I'm assuming that you are disconnecting shore power to deterime that the battery life is only 8-10 hours, if that's the case, then at least we know the inline fuse is OK.

You said that it's charged up to 98% when you start. Again assuming that you are charging from the converter in the TT.

What are you using to determine its at 98%?

What kind of load are you running when on DC power?

Do you have an Inverter?
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Old 05-19-2014, 10:23 AM   #4
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thanks for the response. Do you know where the convertor would be located in the trailer.
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Old 05-19-2014, 10:27 AM   #5
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Mine is located in bedroom under a cabinet at the floor its a black cover that is about 10 inches high and about 12 inaces long. mine went bad after only having trailer about a month.
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Old 05-19-2014, 10:27 AM   #6
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the battery drains to about 5% or less and we then charge it with the battery charger and then put it back on. It is good for about 8 to 10 hours and drains again, we had the battery tested at leisure days (Deka Marine battery) and they advised nothing is wrong with the battery, very frustrating as it usually drains at night. I thought it was the radio but we unhooked it for the weekend and the battery still drains
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Old 05-19-2014, 10:29 AM   #7
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1) Black is positive white is neg.. if miswired it will kill the battery fast
2) check fuses at the battery
3) check the inverter for output
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Old 05-19-2014, 10:32 AM   #8
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we thought the 15 amp shoreline service wold not allow he battery to be charged when the hydro is being used for lights, fridge etc. It sucks as we have to bring our food home every time as the fridge wont run on gas alone ( i think ) as we left last weekend, went back this weekend and the battery was dead again no power to the fridge. ARGH!!!
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Old 05-19-2014, 10:34 AM   #9
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sorry inverter? where is this, i know i sound stupid!! all new to this RVing thing
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Old 05-19-2014, 10:38 AM   #10
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if you are pluged into shore power you should be able to run everything but your AC so your fridge should be running on the 15amp circuit unless there is a breaked tripped at your converter your fridge switch should be set ether to ac or to auto.
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Old 05-19-2014, 10:40 AM   #11
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its the converter a converter changes ac power to Dc power a Inverter changes DC power into ac power.
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Old 05-19-2014, 10:46 AM   #12
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on our system we have a choice of gas or auto for the fridge. We left it on auto and it was not working when we went back this weekend. Once we charged the dead battery and connected the battery the fridge was working, but everytime the battery dies the fridge goes off, so i assume we need hydro and the battery to run the fridge. Also we need the battery to run the water pump and hot water tank
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Old 05-19-2014, 10:50 AM   #13
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I only asked about an inverter, because IF you have one, the can draw power very quickly ( IF you have one ). Are you able to run any 110 v devices, like the microwave or TV while disconnected from shore power?, if not, then we can skip this question )
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Old 05-19-2014, 10:52 AM   #14
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I'm still wondering why you think you have drained battery to 5%.

Are you using a volt meter to determine that, or is the battery just dead after 8 hours
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Old 05-19-2014, 10:53 AM   #15
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" usually drains at night". Is the heater coming on over night?
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Old 05-19-2014, 10:53 AM   #16
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Do you have 110V available all the time? If so then simply plug in and confirm your converter breaker is on. Just because you plug in does not mean all 110V systems are operational. In the fuse panel there are breakers for all 110V systems. You will see the label for it and once you put that on your lights should brighten. You can leave your fridge on Auto and if any sudden power loss the gas will kick on to keep it cold.

The 15A line is not sufficient for Air Cond. use. Short term Micro or coffee pot by themselves is ok. The converter/charger with your year unit should have a smart charge feature which will keep your battery charged under optimal conditions and provide the 12V energy needed to run your systems.
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Old 05-19-2014, 10:56 AM   #17
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when the battery is drained we put it on our battery charger it show you what is remaining on the battery that is still charged. And yes we can run microwave, tv, all plugs work on 110V. What doesnt work only on 110v is fridge, hot water tank, water pump, i assume we battery and 110 to run those and when the battery drains they dont work.
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Old 05-19-2014, 10:59 AM   #18
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no we don't have the heater on, i have a small oil heater i use and it plugs in. the battery is dead when we arrive at our site, we charge it, put it back on and usually 10pm at night it drains that is about 8 to 10 hours after we put it back on. that is what i meant by it being drained at night.
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Old 05-19-2014, 10:59 AM   #19
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when you run the fridge on ac or you call it hydro the green light should be on if you are running your fridge on gas then your battery is used just when the fridge turns on it uses the battery to light the gas but doesnt use the battery all the time same with the hot water tank so it sounds to me that you are not getting any hydro into your trailer or at least to your fridge. do you have a microwave does it work ? if so then you have power comming in but just not to fridge. but your water pump should work off the converter as well. I can use all of dc lights , water pump, fridge and hot water heater when pluged into shore power even if I remove the battery. they will all work check to see if you are getting power into the trailer.
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Old 05-19-2014, 11:08 AM   #20
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it sounds to me like the converter after reading all of your replies. I do appreciate all your guidance on this. we do have power for microwave, v, plugs but when the battery is dead we dont have power to the lights, water pump, fridge or hot water tank, very frustrating as this is a newer trailer.
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