Question about the battery draw |
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Bernty
Newbie Joined: 05 Apr 2018 Location: Texas Online Status: Offline Posts: 5 |
Topic: Question about the battery draw Posted: 05 Apr 2018 at 3:31pm |
I recently purchased a new R-Pod 173. I realized that if I left the pod without shore power for more than a week the battery goes down. I measured the amperage when everything I can turn off is off and I get a reading of about .4 amp. Is that normal? I realize the light on the radio, gas sensor and the USB is still on but I see no way of turning these off. I ended up installing a battery turn off switch but I still would like to know what is normal. |
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Life is short, eat desert first.
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StephenH
podders Helping podders - pHp Joined: 29 Nov 2015 Location: Wake Forest, NC Online Status: Offline Posts: 6288 |
Posted: 05 Apr 2018 at 4:52pm |
Sounds normal to me. Installing a battery cut-off switch was a smart move. Mine stays plugged in when it is at home in our driveway. However, I have a battery cut-off switch to use when needed such as when I need to take it and drop it off for a repair where it will not be plugged in.
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StephenH
Happy is the man that findeth wisdom,... ouR escaPOD mods Former RPod 179 Current Cherokee Grey Wolf 24 JS |
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lostagain
Senior Member Joined: 06 Sep 2016 Location: Quaker Hill, CT Online Status: Offline Posts: 2587 |
Posted: 05 Apr 2018 at 5:41pm |
Yep, it's pretty normal. All those things that run all the time draw power, just like the programs on your computer draw memory resources. The battery switch will help a lot, but you'll still need to keep your battery topped off to ensure maximum life. It's normal maintenance.
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Never leave footprints behind.
Fred & Maria Kearney Sonoma 167RB Our Pod 172 2019 Ford F-150 4x4 2.7 EcoBoost |
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GlueGuy
Senior Member Joined: 15 May 2017 Location: N. California Online Status: Offline Posts: 2628 |
Posted: 05 Apr 2018 at 5:47pm |
It sounds a little bit high to me. I don't have the stereo on, nor do I have a USB port, and the current I measure at the batteries with the Rpod unplugged from shore power is 0.05 amps (50 milliamps). The clamp-on meter that I use has trouble with current that low, but it's an order of magnitude less than what you're seeing. I don't want to alarm you, because 0.4 amps (400 milliamps) is still fairly low, it's just not as low as I would expect.
When I plug in the Rpod, and the converter starts trickle charging, I measure 0.18 amps (180 milliamps) going into the battery. So either the stereo and USB port draw a lot more than I expect, or there is something else pulling power on yours. |
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bp
2017 R-Pod 179 Hood River 2015 Ford F150 SuperCrew 4WD 3.5L Ecoboost |
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Bernty
Newbie Joined: 05 Apr 2018 Location: Texas Online Status: Offline Posts: 5 |
Posted: 06 Apr 2018 at 8:46am |
Thanks all for the input. I tend to agree with Glue Guy, .4 amp is high. Did some pulling of fuses to see where the draw was and it seams to be from the converter itself as if I disconnect everything but the converter that's what I get. Did not have time to look into it further but I will. Also, when connecting the battery I hear a click in the converter like a relay click. Will see what that is.
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Life is short, eat desert first.
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StephenH
podders Helping podders - pHp Joined: 29 Nov 2015 Location: Wake Forest, NC Online Status: Offline Posts: 6288 |
Posted: 06 Apr 2018 at 8:58am |
With the converter fuse pulled, what is the power draw? It might be worth your while to contact WFCO to ask about whether the converter should be drawing power when the shore power is disconnected.
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StephenH
Happy is the man that findeth wisdom,... ouR escaPOD mods Former RPod 179 Current Cherokee Grey Wolf 24 JS |
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Bernty
Newbie Joined: 05 Apr 2018 Location: Texas Online Status: Offline Posts: 5 |
Posted: 24 Apr 2018 at 9:50am |
I turned to the manufacture about this issue but the answer I get can't be correct. Please read the chain of emails from the bottom and up between me and Kate Ebbole from Forest River. Obviously a draw from the battery can't be the fault of the battery so changing battery would not help. The latest statement from their engineering department that the pod in rest would draw 2 amp can't be correct either. At that draw a battery would not last any time. Love to hear your opinions.... Good morning, Our engineer states 0.4 amps at rest is great usually he counts it at 2.0 amps. Getting a battery disconnect is the way to go if you do not have solar panels to maintain the charge on your battery.
Thank you-
From: Ronnyk
Thanks but apparently something is getting lost in the translation. The list you gave me show what items draw when in use. I am not looking for that. I am looking for the amp/watt draw on the battery when NOT in use. As your warranty advisor pointed out the LP/CO detector will pull of the battery constantly, so does the radio in rest as well as the USB charger in rest (the TV amplifier is off). Apparently so does the converter. Neither has anything to do with the battery itself. I do have a new Marine battery giving me close to 12.8 volt and at that voltage I have a draw of over .4 amp or basically about 5 watt. 5 watt is the same as an internal light in a car and we all know what happens if we leave that on for a week, the car will not start. As the R-Pod is not delivered with a battery shut-off switch I have to assume you should be able to park the pod more than a week without disconnection the battery so my question again is what is a normal draw from the battery in rest with everything that can be turned off is turned off? Please show this e mail to your technical person. He will understand.
P.S. I would contact my dealer but he is 200 miles away and before I know I have a problem, i.e. this is not normal, I would waste his time.
From: Katherine Ebbole [mailto:KEbbole@forestriverinc.com] Good morning Ronny, I have looked in to this with my lead warranty advisor. Items like the refer and LP/CO detector will pull off of the battery constantly. I have attached photo of the amp draws for the RPOD. Also, we do not provide batteries with the RPODS, the dealers do. I would consider contacting your dealer. We recommend you use a 12V marine battery. For dual batteries we recommend parallel set up. Thank you- From: Ronnyk It's not a battery issue. The problem is the draw from inside the camper. In simple terms, a 0.4+ amp draw is the same as leaving a light bulb on in a car. Give it a couple of days and you can't start the car. It's not the batteries fault. So my question again is, what is a normal draw from the battery in rest without the unit connected to 115 volt. With other word, could someone put an amp meter on an R-pod battery and let me know if this is normal before I take any further step. From: Katherine Ebbole [mailto:KEbbole@forestriverinc.com] Hello, |
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Life is short, eat desert first.
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GlueGuy
Senior Member Joined: 15 May 2017 Location: N. California Online Status: Offline Posts: 2628 |
Posted: 24 Apr 2018 at 10:08am |
If they are saying that a pod at rest is 2 amps, then they are blowing you off. I think .4 amps is a "bit" high, but it's not outrageous. Ours is a fraction of that, but we don't have the USB charger. I suppose the difference might be that, but I don't know.
There are only three or four things that could be causing your current drain at this point. (1)LP/CO sensor, (2)Stereo, (3)USB charger, and (4)Converter. If I was really curious, I would put an ammeter on the battery, and disconnect/connect each of those devices to see who is drawing the most. If you disconnect those 4 things and you still have a drain, then you have a phantom. At that point I might start pulling fuses. |
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bp
2017 R-Pod 179 Hood River 2015 Ford F150 SuperCrew 4WD 3.5L Ecoboost |
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furpod
Moderator Group - pHp Joined: 25 Jul 2011 Location: Central KY Online Status: Offline Posts: 6128 |
Posted: 24 Apr 2018 at 10:40am |
The converter doesn't draw any 12v. It can't. If tried to, it would blow the reverse polarity fuses as soon as 12v tried to go "the wrong way"..
What most, or at least many people miss is the antenna booster. But the OP seems to have checked that. The next thing to do, is start pulling fuses one at a time and checking which circuit has the draw. At .4 amps, that's 9.6 amps a day.. a group 24 has around 30 usable amps.. I have seen parasitic draw reports this high before, but usually it's half of that or less. Our Pod drew .12 and we had dual GC2's.. so we could sit idle a good long time, still used a battery cutoff. Many campers have one from the factory (battery cut off).. we are "2 outa 3"... so far. LOL |
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CharlieM
Senior Member Joined: 23 Nov 2012 Location: N. Colorado Online Status: Offline Posts: 1797 |
Posted: 24 Apr 2018 at 11:14am |
From my measurements the "normal" draw is 0.1-0.2A. The major contributor is the CO detector but the electronic thermostat, any 12V USB chargers, the fridge control board if left on, and the antenna booster if left on will add to this. Note that clamp on ammeters can be very inaccurate at low levels so the OP's 0.4A may be OK. This can be checked with a good DVM in series with the battery.
As for the FR 2 Amp estimate, that's similar to some presidential inauguration attendance claims. BS. |
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Charlie
Northern Colorado OLD: 2013 RP-172, 2010 Honda Pilot 3.5L 4WD PRESENT: 2014 Camplite 21RBS, 2013 Supercharged Tacoma 4L V6 4WD |
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