Page 1 of 3 123 LastLast
Results 1 to 10 of 26
  1. #1
    JK Freak JoeBlob's Avatar
    Join Date
    Jul 2008
    Location
    Cumming, GA
    Posts
    599

    Default Can I Overload My Battery?

    In addition to the normal functions, my battery is powering 6 aux lights, a high-powered amplifier, subs, winch, rear camera, nav system, alarm, ipod, elockers, trailer lights and probably some other stuff I can't think of right now. My question is, do I need to worry about my equipment malfunctioning because of an overload or will my battery just die one day and all the accessories be fine when I put in a new one? Also, should I consider adding a second battery?

  2. #2
    JK Enthusiast
    Join Date
    Aug 2008
    Location
    tokyo
    Posts
    248

    Default

    um..yeah
    run a second battery
    2k8 Rescue Green jk
    teraflex 2.5 spring lift
    2inch spacers
    RR front bumper and rock rails
    teraflex spare tires relocator
    mygigerry
    piaa lights
    Onboard air
    quick disconnects(via wrench and ratchet)
    other crap

  3. #3
    JK Jedi Master Mark Doiron's Avatar
    Join Date
    Mar 2007
    Location
    Midwest City, OK
    Posts
    10,991

    Default

    Quote Originally Posted by JoeBlob View Post
    In addition to the normal functions, my battery is powering 6 aux lights, a high-powered amplifier, subs, winch, rear camera, nav system, alarm, ipod, elockers, trailer lights and probably some other stuff I can't think of right now. My question is, do I need to worry about my equipment malfunctioning because of an overload or will my battery just die one day and all the accessories be fine when I put in a new one? Also, should I consider adding a second battery?
    This is an interesting question. How about the alternator? At what point is it necessary to upgrade that, too?

    BTW, JoeBlob, my oldest son, who is visiting me here in OKC this weekend, lives in Cumming.

  4. #4
    JK Super Freak Choppus's Avatar
    Join Date
    Oct 2008
    Location
    Canisteo, NY
    Posts
    976

    Default

    When I had my TJ I was looking into get a mean green alternator. That might be something worth looking into.
    2009 Jeep Wrangler Unlimited Rubicon
    Deep Water Blue / Hard Top / MyGiG / 6 Speed / Power Group / Tow Package


    THESE COLORS DON'T RUN


    A veteran is someone who, at one point in his life wrote a
    blank check made payable to "The United States of America" for an amount of "up to and including his life."

    Northridge4x4

  5. #5
    JK Freak
    Join Date
    Aug 2008
    Location
    NYC
    Posts
    562

    Default

    Quote Originally Posted by Mark Doiron View Post
    This is an interesting question. How about the alternator? At what point is it necessary to upgrade that, too?
    :
    Very good question; I would install a 140 amps alternator

  6. #6
    JK Enthusiast hawgrider1200's Avatar
    Join Date
    Jul 2008
    Location
    on the banks of the ocmulgee , GA
    Posts
    436

    Default overload

    the short answer would be yeah. If u were to try to run all that electrical stuff at the same time and ur engine was not running or the alternator was not working properly.

    In actual operating conditions u are probably not running all those electrical accessories at the same time and u are probably under power with your alternator operating correctly. As long as ur power consumption does not exceed the amperage rating of the alternator u are not drawing power from the battery. The battery is merely a storage unit for power made by your alternator.

    If your amperage draw is exceeding the output in amps (117) of your alternator then yes u could conceivably draw all the power out of your battery and be dead in your tracks. You can upgrade I saw one on the internet that puts out 200 amps.

    otherwise ur battery is one day gonna take a crap, just like all batteries some sooner than others depending on a vast majority of factors. One factor is vibration. One factor is how well that battery is maintained. I knew a fellow that had corrosion problems at the cable ends and instead of cleaning the corrosion he'd hit the cable ends with a hammer to get a good connection he very quickly killed that battery. the posts broke loose from the plates and it will not work too good like that. Good luck with all that electric stuff. just don't turn it on all together too much u might have issues with electromagnetic waves when u get old. Same for folks that live too close to high voltage power lines.
    Last edited by hawgrider1200; 10-11-2008 at 07:12 AM.
    Uva uvum vivendo varia fit (on the sign in front of the ranch in lonesome dove)
    (translation) a grape seeing another grape changing color will also change color or a good friend will have good friends. a bad friend will have bad friends.

  7. #7
    dsy
    dsy is offline
    JK Freak dsy's Avatar
    Join Date
    Jan 2007
    Location
    Toledo
    Posts
    528

    Default

    Quote Originally Posted by Frog Rubicon View Post
    Very good question; I would install a 140 amps alternator
    Um, pretty sure the JK comes with a 160amp alt
    Last edited by dsy; 10-11-2008 at 03:31 PM.
    Flame red unlimited Rubicon, 5 speed 5-45RFE Auto ordered 7/21/06, Delivered 10/4/06 2" OME HD lift, LoD front bumper with Warn powerplant, Marchal E-Code lamps, Katzkin leather, 45qt Engel refrigerator / freezer, 09 MyGig with Allgig usb and I-pod intergration, ya its got a Hemi. http://www.jk-forum.com/showthread.php?t=55111

  8. #8
    JK Super Freak Lorrel's Avatar
    Join Date
    Apr 2007
    Location
    Lancaster Pa
    Posts
    1,612

    Default

    Quote Originally Posted by Frog Rubicon View Post
    Very good question; I would install a 140 amps alternator
    Not a good idea, as the JK comes stock with a 160 amp alternator. At least our 2007 4dr did.
    I guess it would be possible to have the alternator re-wound to provide 200 amps, however as with all aftermarket high output alternators, something will have to be sacrificed. Normally, unless you are willing to spend in the $800- $1200 range for a custom alternator, higher output alternators require a higher RPM to deliver the higher output (and they will generate more heat), which means at the lower RPM the alternator would be outputting less amps than the stock one.
    Chances are you will not be using all your aux equipment at the same time so the stock alternator should be adiquate at recharging the battery.
    I would look into a dual battery setup with a good isolator. The batteries should be Optima's or better. As for the audio system, if you don't already have, look into some capacitors to keep it up to snuff. Your local audio dealers can help you in that area.

  9. #9
    JK Freak JoeBlob's Avatar
    Join Date
    Jul 2008
    Location
    Cumming, GA
    Posts
    599

    Default

    Thanks for the feedback guys!

    I think I'm going to go with Lorrel's plan of attack and run dual Optima's with an isolator. Maybe put the audio, lockers and winch on one battery and leave everyting else on the other one.

  10. #10
    JK Newbie calibutcher's Avatar
    Join Date
    Sep 2008
    Location
    Modesto, Ca
    Posts
    67

    Default

    Get a deep cycle battery and you shouldn't have to touch your alternator. A standard car battery is designed to provide a surge of power for a short period of time, like during ignition. But a deep cycle battery can supply a steady rate of power for a long period of time. A deep cycle battery can also be run all the way down and recharged unlike a standard car battery that would be ruined by completely draining and recharging. Optima makes them (yellow top) but you can find other manufacturers just make sure it has the right post setup for you.

    Conclusion get two deep cycle batteries and hook them up in tandem. This will give you the cranking power you need for start up and all the residual power you could ever want.

    Don't try to hook up the old battery with a new deep cycle. The stronger battery will drain the other and battery management goes out the window.

  11. Default JK-Forum


Page 1 of 3 123 LastLast

Posting Permissions

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