Steel Soldiers::Military Vehicles Supersite
Mark Forums Read

Reload this Page



» Log in
User Name:

Password:

Not a member yet?
Register Now!
Reply
 
LinkBack Thread Tools

Old 11-13-2008, 01:45   #1 (permalink)
Sergeant Major
 
Ronbo's Avatar
 
Join Date: Nov 2008
Location: Mid TN.USA
Posts: 193
Ronbo
Default 12v- 24v question

I see a few post saying to buy a 24 to 12 volt reducer. I was wanting to put a sterion in my Deuce, Is there a problem with just pulling straight off one battery and using 12 volts from there( fused) ?
Ronbo is offline   Reply With Quote
Old 11-13-2008, 01:48   #2 (permalink)
Fleet Admiral/Moderator
 
Recovry4x4's Avatar
 
Join Date: Jun 2004
Location: Loxahatchee, FL
Posts: 21,037
Recovry4x4 will become famous soon enough
Default

Yes, it will create an imbalance between batts and they won't charge right. Every once in a while for short spells and low current draw, no problem. Example, I picked up a deuce in TN. Drove it almost non stop to FL. Had a 400W inverter center tapped to one battery. Once in FL that sucker wouldn't start and no matter how long you ran it, it wouldn't charge. I had to pull it out and charge it separate and that fixed it
__________________
3 Trucks
4 Trailers

This Steel Soldier Honors the Living Memory of David Frankenhauser, 1954-2009.
May you Sail in the Grace of Our Lord, Chaplain!

“The earnest prayer of a righteous person has great power and produces wonderful results.” James 5:16.
Recovry4x4 is online now   Reply With Quote
Old 11-13-2008, 02:00   #3 (permalink)
Colonel
 
dburt's Avatar
 
Join Date: Oct 2008
Location: NE Oregon & SW Idaho
Posts: 262
dburt is on a distinguished road
Default

For low draw 12 volt items, you can hook up to the center cable that ties your two batteries together in series. Check it with a volt meter, you will get a 12 volt reading. Then you are drawing from both batteries. At least that is what Alex at Idaho Motor Pool tells me, and there is not much about miltary vehicles that he does not know.
dburt is offline   Reply With Quote
Old 11-13-2008, 05:23   #4 (permalink)
3 Star General
 
bottleworks's Avatar
 
Join Date: Mar 2006
Location: Central NC
Posts: 903
bottleworks is on a distinguished road
Default

Do a search on a "Battery Equalizer".

Pulling 12 volts off the lower battery is never correct unless you have a way to correctly charge them. Example: On a CUCV, you can pull off the lower battery because it has an alternator to charge each battery.
__________________
1968 M35A2 W/W, C Turbo - Using a remote single 51792XD oil filter with a Pre/Post Lube System.
bottleworks is offline   Reply With Quote
Old 11-13-2008, 06:49   #5 (permalink)
Colonel
 
TommyG45's Avatar
 
Join Date: Jan 2007
Location: Cleveland Ohio
Posts: 207
TommyG45 is on a distinguished road
Default

You can go off the center tap for a 12v load, watch your polarities. Low draw only for the very reason stated above. The correct way to do this is allow both batteries in series to equal out the current draw as stated. Voltage dividers / reducers are the correct way to go. Buy one or make one and be done with it.

Weren't you the guy that wanted to put a kicking system in ? Watch the total load of the stereo including amps. You may find your reaching the limits of the Deuce charging system @ 24 volts with a reducer.

I guess you would also have to define kickin.... Do you know the current draw of the system including the amp you want to hook in at 12v ? You may exceed the limit of the reducer. Don't know the specs of the one that Joe (I think it was) posted.

Last edited by TommyG45; 11-13-2008 at 06:51.
TommyG45 is offline   Reply With Quote
Old 11-13-2008, 07:46   #6 (permalink)
2 Star General
 
HeadWizard's Avatar
 
Join Date: Feb 2007
Location: Chantilly, VA
Posts: 750
HeadWizard is on a distinguished road
Default

I've still got a pile of 24v to 12v voltage converters. Mil Spec, very heavy duty 35amp capacity. NOT made overseas crap.
HeadWizard is offline   Reply With Quote
Old 11-13-2008, 08:03   #7 (permalink)
Banned
 
Join Date: Nov 2006
Location: Gadsden,Al
Posts: 2,738
FreightTrain is on a distinguished road
Default

How much you want for one or three Wizzy?
FreightTrain is offline   Reply With Quote
Old 11-13-2008, 08:09   #8 (permalink)
Colonel
 
TommyG45's Avatar
 
Join Date: Jan 2007
Location: Cleveland Ohio
Posts: 207
TommyG45 is on a distinguished road
Default

Hold one for me, how much... maybe I should have asked that the other way around lol
TommyG45 is offline   Reply With Quote
Old 11-13-2008, 09:06   #9 (permalink)
BANNED
 
gimpyrobb's Avatar
 
Join Date: Dec 2005
Location: cincy, Oh
Posts: 14,570
gimpyrobb will become famous soon enough
Default

I have one of Headwizard's units. They are real nice. Not only do they convert 24-12v, but they can be set up to maintain a 12v battery. WELL WORTH THE PRICE!
gimpyrobb is offline   Reply With Quote
Old 11-13-2008, 09:58   #10 (permalink)
Corporal
 
IronPig's Avatar
 
Join Date: Feb 2008
Location: Fredericksburg, VA
Posts: 40
IronPig
Default

I have a hydraulic dump bed kit with a 12v pump and have been wondering how best to run the 12v pump on my deuce as well. I know ideally I should have a 24v pump, but I'd like to use what I have if possible. A separate battery that can be charged off the stock alternator would seem to be an easy way to prevent problems.

Headwizard - will your converter work for charging a separate battery that sees this sort of load?

Thanks,

Lance
__________________
Lance Williams
www.ironpigoffroad.com
IronPig is offline   Reply With Quote
Reply

Thread Tools

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 Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Diablo Build Update (pics) devilman96 Deuce Modification and Hot-Rodding 503 10-13-2011 15:50
24v to 12v Question - Which Wire redwolf3 CUCV 27 08-28-2011 02:51
Adding A/C to a M35A2 sldinc Deuce Modification and Hot-Rodding 42 12-27-2010 21:40
24v & 12v questions. BKinzey CUCV 23 05-14-2007 11:08
24v vs 12v -- amps is amps? Jones Electrical 3 11-19-2006 23:22

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 06:54.


Copyright 1999-2012 SteelSoldiers.Com No information or photos to be used without permission.