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Unread 08-10-2011, 11:06 AM   #1
kendog21
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Wrangler Battery problems!!!

Hi guys,

I recently (March 2011) bought a 2008 Jeep Wrangler with only 45000 kms on the clock.

I went away for 2 weeks, came back and the battery was dead... I jumped started it drove around for a week...All good!

A week later I start the engine, the engine started to turn over as per usual but just before the engine began running it cut out and the fuse box started making funny rattling sounds... it's now completely dead, it doesn't even make the tick sound as if the battery has a little power...

Is this my battery? I guess it is as not even the light on the dash are turning on when I turn the key in the ignition...

But the car is only 3 years old? should I already need to replace the battery... is this an isolated incidence or generally do Jeep wrangler batteries last around three years...?

Furthermore, its a closed cell battery so its not like one could not have maintained the battery well? Spoke to the previous owner and she said she had never had problems with it...

Oh this could have been an important point: about 2 weeks before I left to go overseas I had drive around with a hole in top boost pipe (pipe flowing from turbo to engine = very little power when driving but had it fixed and everything was fine) would this have had an affect on battery???

Will be greatful to anyone that has insights on this?!

Thanks

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Unread 08-10-2011, 12:08 PM   #2
Jos360
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You should jumpstart it and get a multitester. Then measure the amount of volts on the battery. If you read >13, your alternator is fine and probably the battery is dead. If you read <13, your alternator doesn't charge the battery and is probably broken.
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Unread 08-10-2011, 12:27 PM   #3
tavic
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If its the original factory battery, more than likely its the battery. The average lifespan has been 3 to 4 years on them and when they die it causes all sorts of wierd things to happen.
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Unread 08-10-2011, 02:58 PM   #4
1222
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First, to the forum. Sounds like bad battery to me. It’s doing everything that batteries do when they’re going bad.
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Unread 08-10-2011, 03:30 PM   #5
rirrgang
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Place a Amp meter in line with the positive terminal. Read the draw on the battery at full rest. 100-200ma is about the norm to keep things going like a clock, radio memories and the main cpu. More? You may have something drawing power that you don't know about. A OEM battery should last 3-4 years. I got 3 years 8 months out of mine. I replaced it with a Costco Battery. Been fine since.
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Unread 08-10-2011, 06:00 PM   #6
kik
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You actually did pretty good with that battery. Time to get a new one.
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Unread 08-11-2011, 01:04 AM   #7
kendog21
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Thanks a lot guys...this is a massive help!! using a battery pack today to do the necessary...

Will let you know the outcome..

Regards!!
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Unread 08-11-2011, 05:01 AM   #8
Jos360
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Quote:
Originally Posted by rirrgang View Post
Place a Amp meter in line with the positive terminal. Read the draw on the battery at full rest. 100-200ma is about the norm to keep things going like a clock, radio memories and the main cpu. More? You may have something drawing power that you don't know about. A OEM battery should last 3-4 years. I got 3 years 8 months out of mine. I replaced it with a Costco Battery. Been fine since.

Good idea too. I want to highlight that it's very important to place the ampmeter IN LINE with the terminal. Otherwise you will blow up your multitester.
The volt meter should be parallel over positive and negative. The amp meter inline with positive.
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Unread 08-11-2011, 05:19 AM   #9
Prot
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Mine lasted 18 months. You mentioned something about a turbo?
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Unread 08-11-2011, 11:06 AM   #10
tavic
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Quote:
Originally Posted by Prot View Post
Mine lasted 18 months. You mentioned something about a turbo?
Cape Town is in South Africa. They probably have a Diesel
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Unread 08-11-2011, 05:13 PM   #11
gil1911jk
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my battery die with 15.000 on it. i have a 2008 wangler sahara original factory battery,only good for two years wierd things to happen before it die all the way.i got a autozone 800 cc battery and it runs great now
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Unread 08-12-2011, 03:49 AM   #12
jacquespienaar
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I have a Diesel JK and I'm on my 3rd battery with 74 000km's on the clock. Luckily the motorplan has replaced them for me. Was wondering if I could rather put in a deep cycle if it goes again out of motorplan?
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Unread 08-12-2011, 07:20 AM   #13
Hilldweller
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Quote:
Originally Posted by jacquespienaar View Post
I have a Diesel JK and I'm on my 3rd battery with 74 000km's on the clock. Luckily the motorplan has replaced them for me. Was wondering if I could rather put in a deep cycle if it goes again out of motorplan?
Some deep cycle batteries are good for starting too; check with the manufacterer.
Do you have Optimas there? A Yellowtop is both deep cycle and starter.
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Unread 08-12-2011, 08:55 AM   #14
1222
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Hilldweller, you need to be getting some kind of compensation from Optima.
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Unread 08-12-2011, 09:15 AM   #15
Dunefox
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A lifetime of 2 to 4 years is normal for a battery, in very hot and very cold climate on the lower side. The tips on measuring the voltage and the current are good. Make sure also that the terminals are not loose.
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