Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-05-2015, 12:49 PM   #1
2 Rivet Member
 
2006 28' International CCD
Germantown , Tennessee
Join Date: Oct 2014
Posts: 41
Brake Controller on TV draining battery

I've got a new-to-me 2007 Suburban 2500. I pulled the TrueControl Silver brake controller out of my old tv and installed it in the new Burb. But since I did this the battery has been quickly draining and I've. The dealership says the culprit is that the brake controller that is drawing 50 milliamps.

I never had this issue when I had the controller on my old tv (sequoia). I'm curious why this is now a problem with the Chevy. I'm having the dealership check the Body Control Module today to make sure that it's up-to-date and not part of the problem.

So, I'm thinking that if this is the problem then I should be able to just install an on/off toggle switch in the 12v line before it reaches the controller. Then I could just turn that off when it's not in use.

Thoughts on this? And if this is a viable solution then any suggestion on what type and amp size toggle switch I should get?

(I'm not sure if I should post here or in the electrical forum, but figured I would try here first.)
__________________

__________________
jami20 is offline   Reply With Quote
Old 06-05-2015, 01:11 PM   #2
Rivet Master
 
Al and Missy's Avatar

 
2002 30' Classic S/O
Melbourne Beach , Florida
Join Date: Nov 2013
Posts: 2,319
I think you have another problem

50 milliamps will take over 400 hours to drain a group 24 battery to 50%. I don't think this is your problem. Does this occur with the trailer detached? What about with the brake controller disconnected? My F150 would only send current to the trailer batteries when the engine was on, my 2013 Ram does it all the time. This could be 7 amps or more.

If you decide to add the switch, get one with over 15 amp rating, preferably 20 or 30. My manual says that 4 12" brakes draw a total of 12 amps.

Al
__________________

__________________

"You cannot reason someone out of a position they have not been reasoned into"

Al, K5TAN and Missy, N4RGO
2002 Classic 30 Slideout
S/OS #004
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
2001 Safari 25 RB Twin (Gone, but not forgotten)
WBCCI 1322, TAC FL-39, AIR 82265

Al and Missy is offline   Reply With Quote
Old 06-05-2015, 03:39 PM   #3
2 Rivet Member
 
2006 28' International CCD
Germantown , Tennessee
Join Date: Oct 2014
Posts: 41
Yeah, I'm not 100% sold that this is the problem. That's a pretty small draw. But I figured that I could put a 30 amp switch on the 12v line for around $10 and know for sure if that's the issue.
__________________
jami20 is offline   Reply With Quote
Old 06-05-2015, 03:39 PM   #4
2 Rivet Member
 
2006 28' International CCD
Germantown , Tennessee
Join Date: Oct 2014
Posts: 41
I forgot to mention, that's with the trailer detached.
__________________
jami20 is offline   Reply With Quote
Old 06-05-2015, 04:42 PM   #5
Rivet Master
 
Al and Missy's Avatar

 
2002 30' Classic S/O
Melbourne Beach , Florida
Join Date: Nov 2013
Posts: 2,319
Does the brake controller work? I looked at the web site and it says it has reverse polarity protection. In some cases that is a diode across the power line and depends on blowing a fuse. If it is wired wrong and somehow cant get enough current to blow the fuse, that could be it. But you should have seen it when the dealer measured the current. Was he measuring in the 12V power line or the brake light line?

Al
__________________

"You cannot reason someone out of a position they have not been reasoned into"

Al, K5TAN and Missy, N4RGO
2002 Classic 30 Slideout
S/OS #004
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
2001 Safari 25 RB Twin (Gone, but not forgotten)
WBCCI 1322, TAC FL-39, AIR 82265

Al and Missy is offline   Reply With Quote
Old 06-06-2015, 02:05 PM   #6
2 Rivet Member
 
2013 16' Sport
Boulder , Colorado
Join Date: Dec 2012
Posts: 83
I'm going to jump on this thread. We have a brand new Tacoma, and the battery would not keep a charge overnight (unhooked from trailer). We had some after market lights installed (although they were not on) and moved our brake controller over from our old vehicle. The Toyota dealer replaced the battery but warned us that they wouldn't do it again due to the after-market add-ons which they suspect caused the problem.

So far so good with the new battery, but will be curious what you find. Could have simply been a bad battery but we'll see.

Caroline
__________________
Seecue is offline   Reply With Quote
Old 06-06-2015, 03:03 PM   #7
2 Rivet Member
 
1982 27' Excella
Huntsville , Texas
Join Date: Sep 2014
Posts: 80
Dexter controller on 2007 Tahoe

I just placed a Dexter break controller on a 2007 Tahoe and left the Tahoe sitting for about a week. When I went to start the truck I had to charge the battery. The trailer was not connected and I checked to see if anything was left turned on - nothing was. I checked the wiring and all appeared correct. The battery has been in the truck for some time but this is the first problem I've had with it. I am still wondering if it was just a coincidence or if it was the controller?
__________________
GMarugg is offline   Reply With Quote
Old 06-07-2015, 10:43 AM   #8
2 Rivet Member
 
2006 28' International CCD
Germantown , Tennessee
Join Date: Oct 2014
Posts: 41
My experience is similar to yours. I installed a 30 amp on/off switch on the 12v line to the controller yesterday. Doing that makes me a little more comfortable for the times when we are going to be in remote areas. And I'm considering adding a second battery with a bypass since I've got the room under the hood.
__________________
jami20 is offline   Reply With Quote
Old 06-07-2015, 10:45 AM   #9
2 Rivet Member
 
2006 28' International CCD
Germantown , Tennessee
Join Date: Oct 2014
Posts: 41
Al, the controller works. And I'm not sure about what line he was measuring as I wasn't back there when he tested and didn't ask him.

But you've got some good points that I want to check on now.
__________________
jami20 is offline   Reply With Quote
Old 06-08-2015, 07:46 AM   #10
2 Rivet Member
 
1982 27' Excella
Huntsville , Texas
Join Date: Sep 2014
Posts: 80
Battery Drain

When I connected the controller the instruction was to connect wires to two post adjacent to the fuse box under the hood. The Tahoe came prewired but the wires were not connected. It only makes sense that one power would go to the controller, so installing a switch on the power to the controller would only isolate one of the two power feeds.
__________________
GMarugg is offline   Reply With Quote
Old 06-29-2015, 09:47 AM   #11
F150 4X4 ProPride
 
mycloud9's Avatar
 
2015 30' Flying Cloud
Kingwood , Texas
Join Date: Apr 2015
Posts: 37
50 mAmps is a small draw. Check with controller manufacturer most electronic device have an "idle" draw. The controller should get power from a run/accessory circuit in the vehicle. If wired "hot" then it would be a constant drain on the TV battery. TV alternators are not the best charging devices for deep cycles nor your TV battery designed for deep cycle. A low milliamperes draw over a period of days or weeks would put the battery in a state of charge which would challenge battery and TV charging system.
__________________
mycloud9 is offline   Reply With Quote
Old 07-01-2015, 06:59 PM   #12
2 Rivet Member
 
2013 16' Sport
Boulder , Colorado
Join Date: Dec 2012
Posts: 83
I had posted previously that I thought perhaps we simply had a bad battery in our new 2015 Tacoma. Well today the new battery was dead. I unplugged the brake controller and we'll see how it goes. I should mention that the truck was not used for about a week. Not sure how to diagnose what is draining the battery, but hoping that unplugging the brake controller is a first diagnostic step...

Caroline
__________________
Seecue is offline   Reply With Quote
Old 07-01-2015, 07:36 PM   #13
2 Rivet Member
 
1982 27' Excella
Huntsville , Texas
Join Date: Sep 2014
Posts: 80
Break Controller

I replaced my 3 year old battery and have not had any additional problems
__________________
GMarugg is offline   Reply With Quote
Old 07-01-2015, 09:12 PM   #14
Rivet Master
 
garry's Avatar
 
1969 31' Sovereign
Broken Arrow , Oklahoma
Join Date: Jan 2003
Posts: 1,362
Images: 7
I have a 2004 Chevrolet 1500 and had the problem of battery going down if not driven in about 7 to 10 days. I finally found the problem the fuse to the On Star and entertainment center was pulling 3 amps continuously. I had to pull fuses one at a time and check the current draw until I found the problem.

Since I don't have On Star or an entertainment center I just pulled the fuse.

I also wonder if you have the controller wired to a hot +12V all the time instead of a switched 12V source. That would not show up at the hitch connection.
__________________

__________________
Garry
garry 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
Battery draining & headlights flickering beerob63 Mechanics Corner - Engines, Transmission & More... 7 12-03-2013 04:56 PM
Risk of draining truck battery (is there ?) ukinusa Electrical - Systems, Generators, Batteries & Solar 3 07-07-2012 07:08 PM
Generator charging one battery and draining the other dalefox Classic Motorhomes 19 05-15-2009 11:54 AM
New F150 '09 brake controller vs. Prodigy brake controller dukester Brakes & Brake Controllers 17 01-20-2009 11:46 PM
something is draining the battery gbroughman Batteries, Univolts, Converters & Inverters 7 05-31-2008 09:19 AM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:38 PM.


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.