Battery+Accessory Question - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 07-19-2013, 11:17 AM   #1
Jeeper
 
JOCJK's Avatar
 
Join Date: Jun 2012
Location: The Mountains
Posts: 746
Battery+Accessory Question

I have been having battery/electrical issues lately. Jeep had 35k on it when I replaced with a new Duralast Gold battery last august, put new engine in at 40k in December, replaced with a Mopar battery in May when the Duralast went completely and utterly dead seemingly overnight. Month later that died too but was still jumpable. Dealer put a new Power Control Module in to fix the problem. 4 days later, dead. The wipers, warning lights all began flashing and then it died.

I have a Warn 9000i used winch, Rigid Dually's both installed myself. After the 2nd dead battery I took it to my 4x4 shop and had them re-install the wiring to make sure I didn't screw something up.

After my last dead battery on Wednesday night I could not jump it until I pulled the winch + light cables off the battery. Now the dealer is saying that the accessories are draining the battery and that I should just leave them off the battery until I need them then re-connect. Does this make ANY sense? The battery I put in last August was a Duralast Gold, which I thought was a good battery. The current battery is a Mopar battery, I'm not sure of the model as I just told the dealer to put it in so that it would be covered under warranty at the same place as my engine.

I'm at my wits end. My jeep has been in the shop almost every week for 2 months and this is several months after I had the entire engine replaced.

Is it for real that these batteries can't handle a winch and set of lights? This seems impossible. Is everyone else running dual batteries and I just happened to miss that?

Between dead batteries, thrown rods, warn out joints after 3k miles, sway bar and lockers that rarely disengage-re-engage and a host of other little problems I have no patience left in the tank. This is all inside of 12 months.

__________________
2007 Black JKU Rubicon| 4.10 | RK 2.5 Flex 285/75R16 Duratracs on MB Chaos 5's 3.8L V6 hole in the block mod
JOCJK is offline   Quote Quick Reply
Old 07-19-2013, 11:44 AM   #2
Jeeper
 
Join Date: Jun 2013
Location: Great White North
Posts: 260
Batteries are delicate creatures. They do not take kindly to abuse. Vibration can break plates, they don't like it too hot or too cold. They don't like being discharged below about 11V. Completely discharge a normal lead/acid battery half a dozen times and it's toast, probably won't start in really cold weather. Overcharge and it's destroyed.

If your battery is failing prematurely then something is wrong (see above). With everything off you should not see more than say 1amp being drained from the battery. Test this by hooking up an ammeter between the battery and one of the battery cables. If you have more than 1amp find out what is drawing the current by disconnecting accessories until the meter shows very little current being drawn.

If vibration is killing your battery due to heavy offroading consider switching to a sealed lead acid battery, they withstand vibration better.

WorkingMan is offline   Quote Quick Reply
Old 07-19-2013, 02:11 PM   #3
kik
Jeeper
 
kik's Avatar
 
Join Date: Dec 2008
Posts: 4,742
Images: 1
Quote:
Originally Posted by WorkingMan View Post
Batteries are delicate creatures. They do not take kindly to abuse. Vibration can break plates, they don't like it too hot or too cold. They don't like being discharged below about 11V. Completely discharge a normal lead/acid battery half a dozen times and it's toast, probably won't start in really cold weather. Overcharge and it's destroyed.

If your battery is failing prematurely then something is wrong (see above). With everything off you should not see more than say 1amp being drained from the battery. Test this by hooking up an ammeter between the battery and one of the battery cables. If you have more than 1amp find out what is drawing the current by disconnecting accessories until the meter shows very little current being drawn.

If vibration is killing your battery due to heavy offroading consider switching to a sealed lead acid battery, they withstand vibration better.
I agree with this. You probably have a draw and/or a short. You need to check that first. I'm running a Warn 9500 with no issues and with a Mopar battery at this point. It's possible that one of your systems wasn't wired correctly or the winch or lights has a short.
kik is online now   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may 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




Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 06:56 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC