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03-21-2016, 04:43 PM
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#1
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Senior Member
Join Date: Jan 2015
Location: Tucson
Posts: 316
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Lights
We dry camp about a third of the time, and with all the gauges/lights on all the time, worry about draining the battery. We have an 18 watt solar panel, which keeps us topped off, but we don't like to use much in the way of lights. We use the awning lights when we take the dog out for his bedtime pee, and we use the inside ligh
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03-21-2016, 05:00 PM
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#2
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Senior Member
Join Date: Dec 2014
Location: FL
Posts: 11,281
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Our favorite place to 'boondock' is at Harvest Host wineries... so we don't call it 'dry camping'.
Our unit has LED lighting and no television so our after dark electric usage is minimal. We also use the awning lights when letting the dogs out, but only going in and out of the trailer. Our LED awning lights draw a lot of power, but I haven't measured specifically how much yet.
We have a digital meter plugged into our 12 v outlet to monitor battery voltage. That is the simplest and cheapest way I know of to keep an eye on your batteries. I purchased, but haven't installed yet, an inexpensive meter to display battery voltage and current flow.
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Sherm & Terry w/rescue Eydie (min Schnauzer) & Charley (std Poodle)
SOLD:2015 Jay Flight 27RLS, GY Endurance (E), Days: 102 '15, 90 '16, 80 '17, 161 '18, 365+ '20
SOLD: 2006 Ford F350 PSD, 4WD, CC, LB, SRW, Camper pkg., 375,000mi
Full timing: Some will think you're crazy, some will be envious, just enjoy the freedom!
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03-22-2016, 10:15 AM
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#3
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Senior Member
Join Date: Apr 2014
Location: Calgary
Posts: 885
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Have you upgraded your lights to LED yet? That will give you the biggest savings in power.
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2014 Jayco Swift 281BHS, 300W Solar!
2015 F250 XLT 4x4 Crew Cab, Short box, 6.2 gas
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03-22-2016, 11:41 AM
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#4
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Senior Member
Join Date: Aug 2015
Location: Albany, OR
Posts: 692
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It is a little unclear what size of trailer you are talking about. If a larger (20ft+) travel trailer then your 18W solar panel is really not enough. It will work for trickle charging, but that is about it.
I would start with getting some way to measure your current usage from the batteries. My preferred method would a dedicated monitor like the trimetric 2030-RV. These are not cheap and by the time you are done you will be into it for about $150 or so.
You can see one here.
TriMetric Model Descriptions, Present and Past | Bogart Engineering
Another option, especially if you do not have one yet, is to get a clamp-on multi-meter. Make sure it can measure AC AND DC amps with the clamp.
I have this one, which I got at Sears a few years ago, it seems to work fairly good. From my experience if the meter cost less than $50 or so, it probably cannot measure DC amps with clamp.
Sears.com
Lastly, if you don't want to bother with any of the other stuff, you might get by with a 100W panel, a small solar controller, and replacing all the lights with LEDs.
__________________
2015 Jayco 27RLS
2015 Ford F250 6.7PSD
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03-22-2016, 03:15 PM
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#5
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Senior Member
Join Date: May 2012
Location: Minnesota
Posts: 10,015
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We don't dry camp as much as I would like.
We converted our incandescent bulbs to led. All of our leds use the same amount of power as one incandescent bulb. We turn on only the lights we need, and we will sit inside reading or playing games with the lights on. The ceiling lights work off one master switch, we'll flip it on, then go to each fixture and turn them on/off as needed. We can go for an easy three days, including using our bunk fans.
I would like to add is a master power switch to kill the power to the stereo, I bet it uses a lot of power sitting idle.
I have a clamp amp meter works great.
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03-22-2016, 04:15 PM
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#6
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Senior Member
Join Date: Jan 2014
Location: Aurora CO
Posts: 2,334
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Quote:
Originally Posted by Jagiven
We don't dry camp as much as I would like.
I would like to add is a master power switch to kill the power to the stereo, I bet it uses a lot of power sitting idle.
I have a clamp amp meter works great.
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Use the clamp to find out its idle draw..... I would really like to know that.....
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Jim & Kim from Colorado
2014 Eagle 30.5 RLS
2015 Dodge 3500HD SRW 6.7L
Click on my profile for Mods and notes
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03-22-2016, 04:35 PM
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#7
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Senior Member
Join Date: Oct 2015
Location: Milford
Posts: 629
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I just installed a cheap monitor on my rig. While I haven't done a lot, beyond making sure it worked, I did measure an idle draw on my 2016 Eagle HT 29.5BHDS of just under 0.5 amps. It was fluctuating from 0.43 to 0.47 amps. This is with everything off that could be turned off. So stereo idle, propane detector and what ever else draws power.
The furnace was pulling 7 amps while running. I plan to inventory more items when I get some time and assistance.
That would amount to 12 amp hours per day that you are stuck with. Not enough to worry me, But I understand others may run tighter on their energy budget.
__________________
2016 Jayco Eagle HT 29.5BHDS (ordered 12/30/15, delivered 3/8/16)
2015 F-350 crew cab, short bed, 6.7L PSD, Pullrite Superglide 3300 hitch
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03-22-2016, 05:48 PM
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#8
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Senior Member
Join Date: Oct 2011
Location: Central California
Posts: 2,283
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Quote:
Originally Posted by Jim-n-Ash
We dry camp about a third of the time, and with all the gauges/lights on all the time, worry about draining the battery. We have an 18 watt solar panel, which keeps us topped off, but we don't like to use much in the way of lights. We use the awning lights when we take the dog out for his bedtime pee, and we use the inside ligh
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Is there a question in here?
I see several responses with suggestions and comments, but I don't seem to understand your question.
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2020 Ram 1500 5.7L
2007 Chevy Duramax LMM/Allison (Sold)
2012 Jay Flight 29QBH (Sold)
2012 Jay Flight 26BH (Sold)
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03-22-2016, 06:06 PM
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#9
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Site Team
Join Date: Jan 2011
Location: James Island, SC
Posts: 23,416
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Quote:
Originally Posted by clubhouse
Is there a question in here?
I see several responses with suggestions and comments, but I don't seem to understand your question.
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Seems like his concern is , Does he have enough solar capacity? Maybe a clarification of what the question is, is in order?
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Moderator
2011- 351RLTS Eagle, MorRyde suspension/pin box,
2017- F350 6.7 PSD Lariat FX4,SRW, SB,CC
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03-23-2016, 11:28 AM
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#10
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Senior Member
Join Date: Apr 2014
Location: Calgary
Posts: 885
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Quote:
Originally Posted by Cdash
I just installed a cheap monitor on my rig. While I haven't done a lot, beyond making sure it worked, I did measure an idle draw on my 2016 Eagle HT 29.5BHDS of just under 0.5 amps. It was fluctuating from 0.43 to 0.47 amps. This is with everything off that could be turned off. So stereo idle, propane detector and what ever else draws power.
The furnace was pulling 7 amps while running. I plan to inventory more items when I get some time and assistance.
That would amount to 12 amp hours per day that you are stuck with. Not enough to worry me, But I understand others may run tighter on their energy budget.
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12Ah per day! No wonder so many people ask why their battery is dead after sitting unused for a few days.
7 days on a group 24 and you are dead, dead. 4 days and you are down to 50% charge.
I used to think you would get two weeks. Guess not.
Never really did the math before but it makes sense. If you had a 1 amp parasitic draw that is 24Ah per day. Two days boondocking without using any additional power and your low voltage alarms (CO & propane) will start beeping if you are on a regular group 24 battery.
Even 4.5 days on a pair of 6 volts and you will be down to 50% charge.
Cheers
__________________
2014 Jayco Swift 281BHS, 300W Solar!
2015 F250 XLT 4x4 Crew Cab, Short box, 6.2 gas
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03-23-2016, 11:47 AM
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#11
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Senior Member
Join Date: May 2012
Location: Minnesota
Posts: 10,015
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Quote:
Originally Posted by Jmooney
Use the clamp to find out its idle draw..... I would really like to know that.....
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The HTT is still in winter storage. I'll report back in a new thread once I complete the task.
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03-23-2016, 12:07 PM
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#12
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Senior Member
Join Date: Aug 2015
Location: Albany, OR
Posts: 692
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Quote:
Originally Posted by Jmooney
Use the clamp to find out its idle draw..... I would really like to know that.....
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I have had two trailers. One a 1989 Kit Companion and my new one, a 2015 Jayco 27RLS.
The parasitic load on both of them was about .3 to .5 amps. That is with everything turned off, or as "off" as a modern component can be, without removing a fuse or unplugging it.
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2015 Jayco 27RLS
2015 Ford F250 6.7PSD
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03-24-2016, 11:47 AM
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#13
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Senior Member
Join Date: Oct 2015
Location: Milford
Posts: 629
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Quote:
Originally Posted by Subaru297
12Ah per day! No wonder so many people ask why their battery is dead after sitting unused for a few days.
7 days on a group 24 and you are dead, dead. 4 days and you are down to 50% charge.
I used to think you would get two weeks. Guess not.
Never really did the math before but it makes sense. If you had a 1 amp parasitic draw that is 24Ah per day. Two days boondocking without using any additional power and your low voltage alarms (CO & propane) will start beeping if you are on a regular group 24 battery.
Even 4.5 days on a pair of 6 volts and you will be down to 50% charge.
Cheers
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To me 12 Ah doesn't seem like much, but when you put it in context, you are right. The trailer will kill the stock battery in 4 days without anything else.
Now you have me curious to chase down what the 0.5 Amp idle draw comes from and how much from each thing. Curious if a majority is the CO and Propane or if it is just the electronic gremlins in the electrical system munching away.
__________________
2016 Jayco Eagle HT 29.5BHDS (ordered 12/30/15, delivered 3/8/16)
2015 F-350 crew cab, short bed, 6.7L PSD, Pullrite Superglide 3300 hitch
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03-28-2016, 07:15 PM
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#14
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Member
Join Date: Aug 2013
Location: Edmonton
Posts: 43
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I did a power audit on our 2010 28BHS, here is the results.
Water Pump 5.0 amp
Furnace 6.0 amp
921 bulb 1.3 amp
Stereo on 0.4 amp
Exhaust fan stove 1.4 amp
Exhaust fan bath 1.25 amp
Signal booster 0.1 amp
Monitor panel 0.25 amp
Water heater burn 0.6 amp
Water heater @ temp 0.02 amp
Parasitic draw 0.35 amp (radio, CO detector)
Refrigerator At rest auto 0.34 amp
At rest gas 0.34 amp
Auto cooling 0.58 amps
Gas cooling 0.71 amps
Furnace run time @ 10 C (50 F) 10.66 minutes/hour
Furnace run time @ 5 C (40 F) 17.28 minutes/hour
Furnace run time @-5 C (22 F) 32 minutes/hour
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Sue's computer AC draw Charged = .16 A = 19.2 W Charging = .34 A = 40 W
My computer AC draw Charged = .10 A = 12 W Charging = .29 A = 34.8 W
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2012 Jayflight 28 BHS
2014 F150, 5.0 L, 3.55 axle
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