Furnace / Battery - Escape Trailer Owners Community

Go Back   Escape Trailer Owners Community > Escape Tech > Problem Solving | Owners helping each other
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 09-10-2013, 01:50 PM   #1
Senior Member
 
gbaglo's Avatar
 
Join Date: Oct 2008
Location: North Vancouver, British Columbia
Trailer: 2009 Escape 17B - "Toad". '08 Toyota RAV4 V6
Posts: 10,729
Furnace / Battery

I know the furnace draws quite a bit, but I'm having to charge battery ( generator, through converter ) every day.
Battery is single 12V, two-year old Trojan 27 TMX. Checked cells and they are OK for level.
Volt meter read 12.31 at start. I charged it for an hour and a half and it read 12.76.
Next morning it was reading 12.28. Furnace had run from time to time through the evening and half the night.
I turned the furnace on and checked voltage and got 11.59 ( not sure if that's useful information.
When charging I get 13.67 at the outlet.

My buddy Keath has been camping next to me in his 19 with dual 6V and running the furnace in the evening and then again in the morning. His battery reads 12.46 after several days camping and no charging.
__________________

__________________
2009 Escape 17B "Toad"
2008 Toyota RAV4 V6 Sport
North Vancouver, British Columbia

What happens to the hole when the cheese is gone?
- Bertolt Brecht
gbaglo is online now   Reply With Quote
Old 09-10-2013, 02:47 PM   #2
Senior Member
 
thoer's Avatar
 
Join Date: Oct 2009
Location: Galesville, Wisconsin
Trailer: 2017 21 "Blue II" & 2017 Highlander XLE (previously 2010 17B "Blue" & 2008 Tacoma)
Posts: 3,961
Glenn - do you have one of those specific gravity testers along with you or does Keath have one? That way you could check to see if one cell is weak. When we had the Scamp it had one 12v battery and running the furnace overnight with it never dropped the voltage that much. Our Escape has twin 6v so not a good comparison - but the furnace doesn't drop them nearly like the readings you are getting.
__________________

__________________
Eric (and Mary who is in no way responsible for anything stupid I post)

SAE Towing Standard "Beware of false knowledge; it is more dangerous than ignorance." George Bernard Shaw
thoer is offline   Reply With Quote
Old 09-10-2013, 03:00 PM   #3
Senior Member
 
fudge_brownie's Avatar
 
Join Date: Nov 2008
Location: Janesville, WI, Wisconsin
Trailer: Escape 19 (sold) Escape 21 2014
Posts: 1,226
An hour and a half will not cut it with the charger built into the Escape. Even though you are reading 12.76, much of that is surface charge. A charge of 12+ hours, perhaps 24 is necessary to get back to full.

A separate charger would help. Also do you ever go below 50% charge? I always abused my battery on my old pop up, drained it down too much. Getting three years out of those marine batteries never happened.
__________________
Paul and Janet Braun
2003 Toyota 4Runner V8 now 2012 Toyota Sequoia V8
Escape 19' 2010 now 2014 Escape 21'
fudge_brownie is offline   Reply With Quote
Old 09-10-2013, 03:19 PM   #4
Senior Member
 
Vermilye's Avatar
 
Join Date: Feb 2010
Location: Oswego, New York
Trailer: 2016 Tacoma Off Road, 2017 21
Posts: 2,281
While using voltage readings to determine the state of charge of a battery is possible, there are a couple of things to consider.

First, after charging, wait at least 15 minutes, (1/2 hour is better) before checking the battery. A surface voltage reading immediately after charging is misleading. A fully charged battery should be around 12.6V so i suspect you are not fully charging the battery with your hour and one half charge.

Another point - reading battery voltage while under a load (for example, while the furnace is running) will also be inaccurate, so I would not be concerned about 11.59V while running. A more accurate state of charge is the morning reading of 12.28. That indicates about 65% full battery, another indication that you are not fully charging the battery.

What are you using for a charger? At 13.67V, it will take a long time to fully charge your battery (that is many hours). It would be better if your charger can produce a "bulk Charging" voltage in the neighborhood of 14.5 - 15V if you expect to get a full charge in a couple of hours.

A good, 3 stage converter will charge at bulk rates until the battery is close to 80%, then switch to absorption levels of 14V or so. When fully charged, the converter switches to float levels at around 13V. While the WFCO converter used in my Escape 17B is described as a 3 stage converter, it has a reputation of not ever going into the bulk stage unless the wiring between it & the battery is short & large. Again, your charging voltage measurements indicates is is not going into bulk charging which is why you are not fully charging the battery.

One last point (added on edit) - You are comparing your 105 amp/hr battery to a pair of 6V batteries with over twice the storage (232 amp/hrs). Still, if you cannot fully charge your battery after 24 hours on the converter, it is time to look for problems with the battery itself. Some possibilities include a bad cell, battery sulfation, etc. Unless mistreated, a 2 year old Trojan battery should still function.

Here is a link to a printable "Voltage / State of Charge" table that is from the site linked below.

Lots of good information at Mark's "The 12V Side of Life".
__________________
Jon Vermilye My Travel Blog
Travel and Photo Web Page ... My Collection of RV Blogs 2016 Tacoma, 2017 21
Vermilye is offline   Reply With Quote
Old 09-10-2013, 03:25 PM   #5
Site Team
 
cpaharley2008's Avatar
 
Join Date: Jun 2010
Location: York, Pennsylvania
Trailer: 2016 2ndGen Escape 19' PRAIRIE SCHOONER pulled by 2014 Ram Hemi/8sp
Posts: 13,669
I believe the 8012 furnace draws less than 2 a/h while operating.
__________________
Jim
The two most important days in your life are the day you were born and the day you find out why………..Mark Twain
cpaharley2008 is offline   Reply With Quote
Old 09-10-2013, 04:06 PM   #6
Senior Member
 
Vermilye's Avatar
 
Join Date: Feb 2010
Location: Oswego, New York
Trailer: 2016 Tacoma Off Road, 2017 21
Posts: 2,281
Quote:
Originally Posted by cpaharley2008 View Post
I believe the 8012 furnace draws less than 2 a/h while operating.
Actually, 1.8 amp draw, the lowest in the industry (of course, for furnaces with a fan).
__________________
Jon Vermilye My Travel Blog
Travel and Photo Web Page ... My Collection of RV Blogs 2016 Tacoma, 2017 21
Vermilye is offline   Reply With Quote
Old 09-10-2013, 04:29 PM   #7
Senior Member
 
dave macrae's Avatar
 
Join Date: Jun 2012
Location: St.Albert, Alberta
Trailer: 21 ft November 17th
Posts: 844
I measured ours with a fluke meter just to see and ours in our 19 ft draws 1.7 amps while running. My old stick trailer was 6.5 amps, no wonder our 6volts last a lot longer. I know the converter/ charger that escape uses is supposed to be one of the better ones but a proper multi stage charger does work better.
__________________
MacRae, 21ft
2016 GMC Yukon SLT
St.Albert Alberta
dave macrae is offline   Reply With Quote
Old 09-10-2013, 06:20 PM   #8
Senior Member
 
Join Date: Mar 2013
Location: n/a, Texas
Trailer: Escape
Posts: 220
Does anyone know what the 3-speed maxx fan draws? Original literature doesn't say.
Viajante is offline   Reply With Quote
Old 09-10-2013, 06:34 PM   #9
Senior Member
 
gbaglo's Avatar
 
Join Date: Oct 2008
Location: North Vancouver, British Columbia
Trailer: 2009 Escape 17B - "Toad". '08 Toyota RAV4 V6
Posts: 10,729
Thanks guys 'n gals.
I'll put it on charge again during the 6pm to 8pm window.
I did try charging direct from the Honda Eu1000. Not sure if that delivers more power to the battery or not. 12V output to the battery terminals.
So, I should get a separate battery charger and hook up to the battery terminals from the Honda, or I just shouldn't expect so much?
It's now 3pm and the volt meter reads 12.50 ( we've been gone fishing so nothing in use ).
I said fishing, not catching.

baglo
__________________
2009 Escape 17B "Toad"
2008 Toyota RAV4 V6 Sport
North Vancouver, British Columbia

What happens to the hole when the cheese is gone?
- Bertolt Brecht
gbaglo is online now   Reply With Quote
Old 09-10-2013, 06:41 PM   #10
Site Team
 
cpaharley2008's Avatar
 
Join Date: Jun 2010
Location: York, Pennsylvania
Trailer: 2016 2ndGen Escape 19' PRAIRIE SCHOONER pulled by 2014 Ram Hemi/8sp
Posts: 13,669
get a separate battery charger and plug into the Honda and then hook up your battery to the charger, best method
__________________

__________________
Jim
The two most important days in your life are the day you were born and the day you find out why………..Mark Twain
cpaharley2008 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off






» Virginia Campgrounds

Reviews provided by



All times are GMT -5. The time now is 07:50 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 Social Knowledge, LLC All Rights Reserved.