Strange voltage drop - 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 03-24-2019, 11:03 AM   #1
Member
 
Join Date: Jan 2016
Location: Glacier, Washington
Trailer: 2018 Escape 21
Posts: 63
Strange voltage drop

New trailer in Oct. Traveling 4 months solar panel working fine. Never let voltage drop to below 12.30 volts in static mode. Yesterday after 4 hour drive voltage was only 12.4 with partly sunny skies. Noticed voltage drop more than normal. Ran genset that evening until 9m. Within an hour with no heater running and refer off voltage dropped to 12.3. Shut master switch off for sleeping. Woke up to 11.6 volts. What's happening?
__________________

sprinkledavid@gmail.com is offline   Reply With Quote
Old 03-24-2019, 11:24 AM   #2
Senior Member
 
tdf-texas's Avatar
 
Join Date: Nov 2015
Location: Baytown, Texas
Trailer: 2017 21' Escape - since 1/9/2017
Posts: 1,505
Quote:
Originally Posted by sprinkledavid@gmail.com View Post
New trailer in Oct. Traveling 4 months solar panel working fine. Never let voltage drop to below 12.30 volts in static mode. Yesterday after 4 hour drive voltage was only 12.4 with partly sunny skies. Noticed voltage drop more than normal. Ran genset that evening until 9m. Within an hour with no heater running and refer off voltage dropped to 12.3. Shut master switch off for sleeping. Woke up to 11.6 volts. What's happening?
I'm assuming that your trailer doesn't have a battery monitor.

If you have a voltmeter that can read amps, pull each DC fuse and read the amps across the two pins that the fuse plugs into. That should narrow down which circuit is pulling the high current.
__________________

__________________
If It Isnít Perfect, It Isnít Finished
tdf-texas is offline   Reply With Quote
Old 03-24-2019, 12:10 PM   #3
Senior Member
 
AKCamper's Avatar
 
Join Date: Jul 2015
Location: Juneau, Alaska
Trailer: 2016 Escape 19
Posts: 423
I might be tempted to check the specific gravity of the batteries. New doesnít mean a battery canít go bad. Since the voltage went down with the batteries disconnected I would make sure I didnít have a dead/ low cell. Specific gravity should be within 50 points of each other. A bad cell can draw a battery down overnight. Just a easy thing to check with a hydrometer.
AKCamper is offline   Reply With Quote
Old 03-24-2019, 12:28 PM   #4
Senior Member
 
Join Date: Mar 2013
Location: North of Hertel, Wisconsin
Trailer: TBD
Posts: 2,188
Quote:
Originally Posted by AKCamper View Post
I might be tempted to check the specific gravity of the batteries. New doesnít mean a battery canít go bad. Since the voltage went down with the batteries disconnected I would make sure I didnít have a dead/ low cell. Specific gravity should be within 50 points of each other. A bad cell can draw a battery down overnight. Just a easy thing to check with a hydrometer.
Agree , sounds like a bad battery cell . When my battery was going bad it would charge up to 12. 7 VDC and then in about an hour the voltage was down to 12.0 volts ( Battery was disconnected / no load ) Bought a new battery , problem disappeared.
__________________
ď The Danbury Malcontented Curmudgeon
steve dunham is offline   Reply With Quote
Old 03-24-2019, 12:36 PM   #5
Member
 
Join Date: Jan 2016
Location: Glacier, Washington
Trailer: 2018 Escape 21
Posts: 63
Strange voltage drop

Thanks for the feedback...will obtain a hydrometer when in civilization. When main battery isolation switch is "off" shouldn't that stop any amp loss from any house drain except for Go Power solar and invertor system?
sprinkledavid@gmail.com is offline   Reply With Quote
Old 03-24-2019, 01:39 PM   #6
Senior Member
 
tdf-texas's Avatar
 
Join Date: Nov 2015
Location: Baytown, Texas
Trailer: 2017 21' Escape - since 1/9/2017
Posts: 1,505
Quote:
Originally Posted by sprinkledavid@gmail.com View Post
Thanks for the feedback...will obtain a hydrometer when in civilization. When main battery isolation switch is "off" shouldn't that stop any amp loss from any house drain except for Go Power solar and invertor system?
Yes, with the isolation switch off - the only thing that would drain the battery is self discharge in the battery itself. A lead acid battery typically loses 4–6% per month due to self discharge - one with a bad cell, a lot more.

You have solar - turn off the isolation switch and see if the batteries charge back up. If it's a bad battery, they won't. If it's some device in your trailer that pulling current, it will.
__________________
If It Isnít Perfect, It Isnít Finished
tdf-texas is offline   Reply With Quote
Old 03-24-2019, 01:43 PM   #7
Site Team
 
padlin's Avatar
 
Join Date: Sep 2009
Location: Southwick, Massachusetts
Trailer: 5.0 TA #6, 2012 F150 EB
Posts: 5,933
I think the trailer brakes are on the rv batteries, don't know which side of the switch though.
__________________
Happy Motoring
Bob
padlin is offline   Reply With Quote
Old 03-24-2019, 01:46 PM   #8
Senior Member
 
tdf-texas's Avatar
 
Join Date: Nov 2015
Location: Baytown, Texas
Trailer: 2017 21' Escape - since 1/9/2017
Posts: 1,505
Quote:
Originally Posted by padlin View Post
I think the trailer brakes are on the rv batteries, don't know which side of the switch though.
On my trailer, the trailer brakes are connected after the isolation switch. Good reason to not move the trailer with the isolation switch off.
__________________
If It Isnít Perfect, It Isnít Finished
tdf-texas is offline   Reply With Quote
Old 03-24-2019, 02:50 PM   #9
Senior Member
 
Eggscape's Avatar
 
Join Date: Oct 2017
Location: Kelowna, British Columbia
Trailer: 2018 Escape 19
Posts: 1,275
That is what happened to a friend of mine. Someone pulled the emergency brake pin on the tongue and the drain was killing the battery.
__________________
So many modifications...so little time.

http://www.escapeforum.org/forums/f8...ape-12918.html
Eggscape is offline   Reply With Quote
Old 03-24-2019, 02:58 PM   #10
Member
 
Join Date: Jan 2016
Location: Glacier, Washington
Trailer: 2018 Escape 21
Posts: 63
Strange voltage drop

Thanks for the trailer brake pin pulled out tip...voltage is climbing back quickly...please don't ask me how that happened...only my wife will know and it wasn't her fault!
__________________

sprinkledavid@gmail.com 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






» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Escape Trailer Industries or any of its affiliates. This is an independent, unofficial site.


All times are GMT -5. The time now is 10:47 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright 2012 Social Knowledge, LLC All Rights Reserved.
×