Yesterday's Tractor Co. Parts for Farm Tractors - Compare our Prices!
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 9N,2N,8N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Traditional YT Forum ViewClassic View   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Charging Electric Trailer Brake Battery


 
Post new topic    
View previous topic :: View next topic  
Author Message
DJ in NH
Guest






Report to Moderator

PostPosted: Wed Oct 23, 2013 4:08 pm    Post subject: Charging Electric Trailer Brake Battery Reply to specific post Reply with quote

I have a equipment trailer that has electric brakes with a breakaway battery set up. Only use the trailer a few times a year. Would like to charge the battery without removing it from the sealed battery box. I have a spare 7 pin male plug that I could connect to a trickle charger. Not sure what two pins to use. Pins are numbered 1 thru 7. Was wondering if anyone out here uses a similiar set up or do you just remove the battery for charging ? Thanks
 
Back to top
old
Tractor Guru


Joined: 12 Mar 2000
Posts: 56750
Location: Lake of the Ozarks area of MO

Report to Moderator

PostPosted: Wed Oct 23, 2013 4:12 pm    Post subject: Re: Charging Electric Trailer Brake Battery Reply to specific post Reply with quote

Buy a simple solar charger and wire it up and mount it that way it charges when ever the sun is up and is low amp charge
 
Back to top
View user's profile
showcrop
Tractor Guru


Joined: 13 Dec 2000
Posts: 11004


Report to Moderator

PostPosted: Wed Oct 23, 2013 5:32 pm    Post subject: Re: Charging Electric Trailer Brake Battery Reply to specific post Reply with quote


That is a good idea that my buddy "young fella" Old has, I have 2-3 of those little chargers. You could also now and then just back up to the trailer and plug it in when you aren't going to use the truck for a day or two.
 
Back to top
View user's profile
glennster
Tractor Guru


Joined: 14 Aug 2007
Posts: 7852
Location: illinois

Report to Moderator

PostPosted: Wed Oct 23, 2013 5:46 pm    Post subject: Re: Charging Electric Trailer Brake Battery Reply to specific post Reply with quote

Number four at the one o clock position looking at the trailer plug is the 12 volt power supply. Number one which is at the 7 o clock position is the ground. But, do check with a test light to be sure
 
Back to top
View user's profile
jon f mn
Tractor Guru


Joined: 25 Jan 2012
Posts: 4373
Location: Pine City Mn

Report to Moderator

PostPosted: Wed Oct 23, 2013 6:05 pm    Post subject: Re: Charging Electric Trailer Brake Battery Reply to specific post Reply with quote

You will have to do some checking to see how they hooked it up from the factory. Some hook to the power wire, some to the clearance lites. Both of those are not too good. The clearance lite idea can cause the fuse to blow if the battery is too far down. The hot wire method can charge too fast and overheat the battery. The ones done right will have a charger in the system hooked to the power wire so it protects everything. And some do nothing, thinking the battery is a throwaway. Without checking you won't know which method was used.
 
Back to top
View user's profile AIM Address
Kansas Cockshutt
Regular


Joined: 10 Feb 2006
Posts: 300


Report to Moderator

PostPosted: Wed Oct 23, 2013 7:43 pm    Post subject: Re: Charging Electric Trailer Brake Battery Reply to specific post Reply with quote

Good idea Old!!!
 
Back to top
View user's profile
CH(upstate,NY)
Regular


Joined: 14 Dec 2007
Posts: 345


Report to Moderator

PostPosted: Thu Oct 24, 2013 3:47 am    Post subject: Re: Charging Electric Trailer Brake Battery Reply to specific post Reply with quote

Someone just posted this link last week.
Plug Wiring

 
Back to top
View user's profile
George Marsh
Tractor Guru


Joined: 05 Aug 2009
Posts: 5817
Location: terre haute

Report to Moderator

PostPosted: Thu Oct 24, 2013 3:54 am    Post subject: Re: Charging Electric Trailer Brake Battery Reply to specific post Reply with quote

My sure track trailer has a built in charger that runs off the +12v wire on the 7 pin round.
 
Back to top
View user's profile
glennster
Tractor Guru


Joined: 14 Aug 2007
Posts: 7852
Location: illinois

Report to Moderator

PostPosted: Thu Oct 24, 2013 5:26 am    Post subject: Re: Charging Electric Trailer Brake Battery Reply to specific post Reply with quote

here is a 12v charger that will work.
poke here

 
Back to top
View user's profile
John T
Tractor Guru


Joined: 14 Dec 1998
Posts: 14073


Report to Moderator

PostPosted: Thu Oct 24, 2013 5:38 am    Post subject: Re: Charging Electric Trailer Brake Battery Reply to specific post Reply with quote

I would rig up a matching female receptacle into which the trailer male plug will connect and wire it to my battery charger output with the appropriate pin connectors (see diagrams blow). Of course, the trailer wiring has to have the hot 12 VDC power lead connected to the trailer battery and ground proper pins. Then all you have to do is plug the charger into the trailer via the connectors and you're off to the races.

NOTE the standard (see below) 7 pole RV plug and connector wiring and appropriate pins is what I use and recommend. It has one pin for the 12 VDC power use.

Similar when I'm driving my RV engine alternator charges the battery in my trailer or toad via the 7 pole RV plug and connector. I have that wiring protected by circuit breakers at BOTH the RV and trailer or toad. A person can even add a diode so current can ONLY flow from RV to toad/trailer but NOT reverse.

A small 12 volt solar panel is another way to maintain and trickle charge a battery on a trailer that sees little use provided its outdoors. Alternatively a battery trickle maintainer can be used to power the unit.

John T
 
Back to top
View user's profile
Chip812
Long Time User


Joined: 20 Aug 2011
Posts: 778
Location: ALABAMA

Report to Moderator

PostPosted: Thu Oct 24, 2013 6:08 am    Post subject: Re: Charging Electric Trailer Brake Battery Reply to specific post Reply with quote

Just an FYI - because I've been there, done that - some of those solar trickle charges say in the instructions to disconnect them before starting the 'vehicle' because they do not have a diode to protect them from the alternator output. Ruined one when I forgot to disconnect. So... Either remember to disconnect or, like I do now, add a diode to the wiring...
 
Back to top
View user's profile
Owen Aaland
Tractor Guru


Joined: 14 Feb 2007
Posts: 3837
Location: Zumbrota MN

Report to Moderator

PostPosted: Thu Oct 24, 2013 9:10 am    Post subject: Re: Charging Electric Trailer Brake Battery Reply to specific post Reply with quote

You will also need to know how you trailer break away switch works. On my trailer the battery is connected to the brakes through the break away switch only. It is not connected to the trailer wiring other than the brake wire. I have to charge the battery separately from the vehicle.
 
Back to top
View user's profile
Display posts from previous:   
Post new topic    Yesterday's Tractors Forum Index -> Tool Talk All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  Expedited shipping available, just call!  Most prices for parts and manuals are below our competitors.  Compare our super low shipping rates!  We have the parts you need to repair your tractor.  We are a Company you can trust and have generous return policies!   Shop Online Today or call our friendly sales staff toll free (800) 853-2651.

YT Home  |  Forums Home

Copyright © 1997-2014 Yesterday's Tractor Co.

Powered by phpBB © 2001, 2005 phpBB Group

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters