Results 1 to 5 of 5

Thread: snuffy : CCAs

  1. #1
    Join Date
    Dec 2006
    Location
    Auburn, AL
    Posts
    251

    Default snuffy : CCAs

    CCAs
    Post by snuffy on Oct 9, 2006, 8:21am

    Still torn on the 24V vs 12V question, but have run into a interesting question:

    If your batteries are in series, does it double the CCAs available??

    I know 24V uses less amps, but doubling them as well????

    Hmmm...
    Snuffy

  2. #2
    Join Date
    Dec 2006
    Location
    St. Louis, Mo.
    Posts
    338

    Default vrod02 :

    Re: CCAs
    Post by vrod02 on Oct 9, 2006, 8:32am

    I'm steppin out on a limb here so correct me if I'm wrong.I was told 24v was used because lead is cheaper than copper and was need for ammo. Smaller wire can be used in the 24V harness, saving the copper. I know a 6v ford tractor will spin slower but for a longer time than a 12v conv.

  3. #3
    Join Date
    Sep 1998
    Location
    North Central Wisconsin
    Posts
    11,520

    Default brute4c :

    Re: CCAs
    Post by brute4c on Oct 9, 2006, 9:41am

    One does not double the amps when hooking the 2 batteries in series...it double the volts from 12 to 24. If you want to increase cold cranking amps, do what they do in diesel cars...run the batteries in paralell...then you double the cold cranking amps.

    The reason normally given for using 24 volts, and higher, is that when the voltage is doubles, the required amount of amps to do the same work is halved...rougly anyway...so something that took 20 amps in 12 volt takes about 10 amps in 24 volt...this means that all the wiring can be of a smaller gauge, switches and relays can be smaller and lighter, alternators dont need to be as large, starter windings are reduced...etc.


    For the longest cranking time, you want the most RESERVE...you need a good CCA rating BUT if you have 2 batteries with roughly the same CCA reading and one has a case that is much larger, it will have more reserve capacity and will allow for longer cranking, or drawing, before it stops...the smaller case runs out first...easy to picture...kinda like a large and small gas tank and the engine always draws at the same rate.

  4. #4

    Default amphi :

    Re: CCAs
    Post by amphi on Oct 9, 2006, 10:05am

    It is all about Ohms Law.

    Power is equal to Amps times Volts --- P = I x E


    http://www.the12volt.com/ohm/ohmslaw.asp

  5. #5
    Join Date
    Dec 2006
    Location
    Auburn, AL
    Posts
    251

    Default snuffy :

    Re: CCAs
    Post by snuffy on Oct 9, 2006, 6:57pm

    Thanks guys....

    Was reading a Consumer Reports article about batteries and screwed up: I started thinking.

    I'm not an electrical junkie, so I figured I'd ask. Dang Ohm and his stupid laws!

    Snuffy

Similar Threads

  1. snuffy : Sump...
    By Snuffy in forum PseudoZone - Open Archive
    Replies: 3
    Last Post: November 12th, 2009, 04:36 AM
  2. snuffy : Seat replacement recommendations???
    By Snuffy in forum PseudoZone - Open Archive
    Replies: 5
    Last Post: November 12th, 2009, 03:47 AM
  3. snuffy : Found for the 12 volters....
    By Snuffy in forum PseudoZone - Open Archive
    Replies: 5
    Last Post: November 11th, 2009, 05:42 AM
  4. snuffy : Frame Paint?
    By Snuffy in forum PseudoZone - Open Archive
    Replies: 9
    Last Post: November 11th, 2009, 04:50 AM
  5. snuffy : Heat'n and Beat'n
    By Snuffy in forum PseudoZone - Open Archive
    Replies: 10
    Last Post: November 11th, 2009, 02:49 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


Site Upgrade, Design Modifications & Administrative Support by:
Palm River Enterprises LLC, IT Solutions
President: Tom King, User ID=teking
This site is owned and operated by:
M715 Zone, LLC
President: Jon Schmidt, User ID=brute4c


If you have any suggestions, comments, problems or questions, contact:  brute4c@m715zone.com
Use of this site means you understand and agree to our TERMS OF USE

Copyright Notice:
This web site is subject to the protection of the copyright laws of the United States and other countries. Except for Personal Use Only, you may not modify, copy, distribute, transmit, display, perform, reproduce, publish, license, create derivative works from, transfer, or sell any information obtained from any part of the M715 Zone website without the prior written permission of M715 Zone, LLC. Written permission can only be obtained by contacting brute4c@m715zone.com

Copyright 1998-2024