Dead Battery
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JK Enthusiast
Joined: Nov 2011
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From: Cornwall, NY
Im starting to agree
Super Moderator
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From: Hendersonville, Tennessee
JK Enthusiast
Joined: Feb 2007
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From: Austin, Texas
My factory battery died after a year. I worked part-time at Autozone when I was an undergraduate, and I learned then that it is very common for factory batteries in new cars to die after one or two years.
JK Freak
Joined: Apr 2011
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From: Somewhere Out There
Theres a couple of threads on weird warning lights flashing and jeeps not starting but nobody talks about a dead battery on a year old Jeep. 2012 wrangler sport unlimited / auto.
This is what happened;
1-went off-roading
2-while driving home the road slip dummy light came on (didnt think anything of it)
3- got home and pressure washed the mud off
4- next morning went to start it and it would not start (interior lights were dim)
5- tried to jump start jeep from another jeep (unsuccessful)
6- checked voltage at battery (read 17amps wtf?)
7- tapped battery with rubber hammer on top, and retook voltage (read 9amps wtf?)
8- found battery terminals were tight at the nut but did not seem to grip the battery stud fully (could move terminal side to side)
9- only accessary on battery terminals was a winch.
10- took jeep in to dealer becuase it was under warranty
11- they changed out the bad battery and its been fine since
MY QUESTION IS, WHAT KILLED THE BATTERY? the power washing? the slightly lose terminal? Off ROADING (battery plates shifted?)
I want to avoid this happening again.
This is what happened;
1-went off-roading
2-while driving home the road slip dummy light came on (didnt think anything of it)
3- got home and pressure washed the mud off
4- next morning went to start it and it would not start (interior lights were dim)
5- tried to jump start jeep from another jeep (unsuccessful)
6- checked voltage at battery (read 17amps wtf?)
7- tapped battery with rubber hammer on top, and retook voltage (read 9amps wtf?)
8- found battery terminals were tight at the nut but did not seem to grip the battery stud fully (could move terminal side to side)
9- only accessary on battery terminals was a winch.
10- took jeep in to dealer becuase it was under warranty
11- they changed out the bad battery and its been fine since
MY QUESTION IS, WHAT KILLED THE BATTERY? the power washing? the slightly lose terminal? Off ROADING (battery plates shifted?)
I want to avoid this happening again.
My wife wanted me to take it to the dealer for a replacement.
Instead, I went to Sears and bought their best Die Hard.
OEM batteries suck.
Thread Starter
JK Enthusiast
Joined: Nov 2011
Posts: 174
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From: Cornwall, NY
JK Freak
Joined: Feb 2008
Posts: 517
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From: Colorado Springs, CO
I have a 2008 and have put a new battery in every year to year and a half. I just replaced my battery with a Diehard Platinum deep cycle battery and a week later click no start, tried a second time and it started.
Any ideas?
Any ideas?
Thread Starter
JK Enthusiast
Joined: Nov 2011
Posts: 174
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From: Cornwall, NY
If your doing one every year, id check all your accessaries that you've hooked up. Sounds like something has constant power running to it.