Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-09-2015, 11:50 AM   #1
1 Rivet Member
 
1994 19' "B" Van Airstream 190
Waynesfield , Ohio
Join Date: Dec 2012
Posts: 11
House battery interface

I have a 94 B 190 and inadvertently left the ignition on overnight. The chassis battery was dead as a result ( no surprise ) but so was the house battery and that was a surprise! Nothing in the camper was on or running and both batteries were fully charged and are nearly new.
Is it normal for the chassis battery to discharge the house battery? I know the house battery is charged by the alternator, by running the generator, and I believe using shore power.
Needless to say my backup plan to jump start the engine from the house battery was a dismal failure.
__________________

__________________
droadrunner is offline   Reply With Quote
Old 08-09-2015, 12:00 PM   #2
Rivet Master
 
Lily&Me's Avatar

 
2006 22' Interstate
Normal , Illinois
Join Date: Jan 2009
Posts: 13,567
Hmmmm, I don't know, exactly, but there may be a drain if the "use" battery switch is left on during an event like this.

I have discharged the chassis battery by leaving a heavy duty, 12volt charger plugged in for a weekend, so don't feel too bad.

I would charge everything up and watch it carefully. Take a drive and then plug in for a few days, with your "use" switch on, before assessing again....just my humble opinion.

B Vans are the way to go.


Maggie
__________________

__________________
🏡 🚐 Cherish and appreciate those you love. This moment could be your last.🌹🐚❤️
Lily&Me is offline   Reply With Quote
Old 08-09-2015, 12:31 PM   #3
Figment of My Imagination
 
Protagonist's Avatar
 
2012 Interstate Coach
From All Over , More Than Anywhere Else
Join Date: Dec 2011
Posts: 10,326
Quote:
Originally Posted by droadrunner View Post
I have a 94 B 190 and inadvertently left the ignition on overnight. The chassis battery was dead as a result (no surprise) but so was the house battery and that was a surprise!

Is it normal for the chassis battery to discharge the house battery? I know the house battery is charged by the alternator, by running the generator, and I believe using shore power.
I don't know if the B190s include a Battery Isolation Module (BIM) but if they do, then the BIM is supposed to prevent this from happening. Its purpose is to connect the house and chassis systems when there is any source of charging power— shore power, generator, or engine alternator— and disconnect the two systems when there is no source of charging power available.

So, once you get the battery situation fixed, I'd say the next step is to investigate the BIM.
__________________
WBCCI #1105
TAC LA-4

My Google-Fu is strong today.
Protagonist is offline   Reply With Quote
Old 08-10-2015, 11:22 AM   #4
1 Rivet Member
 
1994 19' "B" Van Airstream 190
Waynesfield , Ohio
Join Date: Dec 2012
Posts: 11
Thanks for your responses. Batteries have recharged while traveling in MI. The BIM sounds like my next research project. If I don't get it figured out prior to returning home, hopefully Airstrean which is 20 min from where I live can offer some insight.
Thanks again,
Marlin
__________________
droadrunner is offline   Reply With Quote
Old 08-20-2015, 04:19 PM   #5
1 Rivet Member
 
1994 19' "B" Van Airstream 190
Waynesfield , Ohio
Join Date: Dec 2012
Posts: 11
Dead chassis and house battery update (B190)

Stopped at Airstream factory this afternoon and resolved my question as to why my house battery was also totally discharged as a result of leaving my ignition on. Answer in my laymen's terms are:
When the ingnition is turned on, a wire running from the ignition switch to the electrical panel is energized opening the circuit to the house battery allowing both to charge when the engine is running. This circuit remains open as long as the ignition is on, in effect connecting both batteries. When no charge is being produced by the alternator, both batteries remain interconnected until the ignition is turned off. Therefore if the ignition switch is on and the chassis battery is discharging with the circuit still open, the house battery will also be discharging.
I committed the only scenario where the house battery is not independent.
Ignition off, circuit broken. Leave headlights on, dead chassis battery, good house battery, etc. Whew, think I may have confused myself😊
__________________
droadrunner is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
side panel, rubrail, bellypan interface JoePfznik Belly Pans & Banana Wraps 1 02-06-2009 06:36 PM
alternative shell to subfloor to frame interface? benWa Repairing/Replacing Floor &/or Frame 2 01-07-2009 08:56 PM
Remote Generator Interface Option on 2005 Classic tomriley Generators & Solar Power 2 02-02-2005 08:15 AM
New interface. Over59 Forum Admin, News and Member Account Info 0 07-25-2004 08:27 PM
Radio/Light Interface??? 74Tradewind Electrical - Systems, Generators, Batteries & Solar 3 06-18-2002 10:43 AM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:26 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.