Good Sam Club Open Roads Forum: Class A Motorhomes: chassis battery
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Class A Motorhomes

Open Roads Forum  >  Class A Motorhomes  >  All

 > chassis battery

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
kemer

mn

Full Member

Joined: 05/07/2013

View Profile



Good Sam RV Club Member


Posted: 12/29/19 02:54pm Link  |  Quote  |  Print  |  Notify Moderator

Is there a way to figure out what on a coach is pulling juice from the chassis battery and/or house battery? I know my front retracting night shades draw from chassis, but not sure what else. THANKS

Lwiddis

Monterey, CA

Senior Member

Joined: 08/12/2016

View Profile



Good Sam RV Club Member

Offline
Posted: 12/29/19 03:08pm Link  |  Quote  |  Print  |  Notify Moderator

Unhook the house batteries and see what still works. Worth a try.


Winnebago 2101DS TT & 2020 Chevy Silverado 1500 LTZ Z71, 300 watts solar-parallel & MPPT, Trojan T-125s. TALL pole for flags. Prefer USFS, COE, BLM, NPS, TVA, USF&WS, state & county camps. Bicyclist! 14 year Army vet - 11B40 then 11A - (MOS 1542 & 1560)


jy

south east mich.

Senior Member

Joined: 01/17/2004

View Profile


Offline
Posted: 12/29/19 03:17pm Link  |  Quote  |  Print  |  Notify Moderator

Unhook the battery and see what quits working.


99 Coachmen 322QB, Ford V10,18 foot Load King open trailer, 2007 Mustang GT Toad, Gibson exhaust,Royal Purple lubricants.Recently retired and planning on doing more RV'ing.


enblethen

Moses Lake, WA

Senior Member

Joined: 01/05/2005

View Profile






Posted: 12/29/19 03:31pm Link  |  Quote  |  Print  |  Notify Moderator

If this on your Winnebago, go to their website and doewnload the wiring diagrams. You will need rig's information. VIN and serial number.


Bud
USAF Retired
Pace Arrow

2003 Chev Ice Road Tracker


time2roll

Southern California

Senior Member

Joined: 03/21/2005

View Profile



Good Sam RV Club Member


Posted: 12/29/19 04:04pm Link  |  Quote  |  Print  |  Notify Moderator

Put your clamp-on DC ammeter on the battery cable and see what moves.
(any excuse to have a new tool [emoticon] )


2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
675w Solar pictures back up

theoldwizard1

SE MI

Senior Member

Joined: 09/07/2010

View Profile


Offline
Posted: 12/30/19 10:02am Link  |  Quote  |  Print  |  Notify Moderator

time2roll wrote:

Put your clamp-on DC ammeter on the battery cable and see what moves.

Nothing will "move" but if there is a draw, it should register. This is a case were "bigger is NOT better" ! You don't need a 600 amp-clamp meter. 100A is plenty. Around $50 on Amazon.

The next step is narrowing it down. Take you DMM and set it to the lowest voltage available. Open the fuse box under the hood, and place the test leads on each small metal contact on top of each fuse. If there is no draw, it should read zero.

If you find a suspect, remove the fuse and double check the total draw at the battery. Now you need a wiring diagram !


Remember, all the fancy electronics take up to 5 or 10 minutes to go to sleep, so wait for them !

Ava

Vancouver Island. BC Canada

Senior Member

Joined: 05/05/2015

View Profile



Good Sam RV Club Member

Offline
Posted: 12/30/19 12:11pm Link  |  Quote  |  Print  |  Notify Moderator

My older rig has two switches by the door. One turns the chassis battery on or off and the other turns the coach batteries on or off. I don’t know why newer units do not have the same simple switches. I have no parasitic draw from either when turned off.

ksg5000

Oregon

Senior Member

Joined: 06/30/2008

View Profile



Posted: 12/30/19 12:39pm Link  |  Quote  |  Print  |  Notify Moderator

Google parasitic battery drain - then disconnect the house battery and follow the Google instructions. In my rig the electric steps and alarms were connected to the chassis battery - after being stranded in the boonies with dead chassis battery I moved those over to the house battery.


Kevin

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 

Open Roads Forum  >  Class A Motorhomes  >  All

 > chassis battery
Search:   Advanced Search

Search only in Class A Motorhomes


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2020 CWI, Inc. © 2020 Good Sam Enterprises, LLC. All Rights Reserved.