|10-05-2013 09:35 PM|
|10-05-2013 08:07 PM|
|dmcent63||Just had battery fail, less than 5000 mi, 20 mos. old. Was covered under warrantee. Now seems to have intermittent starting issue. Cranks but doesn't start after being run. Can't seem to recreate the event.|
|09-15-2013 12:00 AM|
|Lusus_Naturae||2013 JKU - 11k - bought in Oct 2012 - battery was doing ok, but when I did a pre-check before my trip I noticed it was wet in the tray underneath so I pulled it out. The dang thing was leaking form the seams at each end. I washed the tray out and put a different battery in for the trip before I got a warranty swap at the dealer. After reading stuff like this I'm sticking with a different battery...|
|09-12-2013 06:40 AM|
He says there all from the factory in India.
He said one guy had to stay over night in the middle of no where in a thunder storm with no top. He was not at all happy.
|09-11-2013 10:02 PM|
|geoffmarton||What size category (not CCA) is the JK battery? Sadly, a new baby is going to cause me to trade my beloved TJ for a JKU soon, and I've read nothing but bad about the factory battery. I have a DieHard Platinum AGM battery that's <1 year old - if it fits, I'm going to insist on a swap being part of the deal.|
|09-11-2013 09:40 PM|
|Wheelerbob||2013 Rubicon battery failed at 800 miles. Dealer said they had to put the same piece of crap battery in that it came with under warrantee. I said no thanks after finding all the stories online about battery failures. I bought the top of the line autocraft AGM battery. All is right with the world again.|
|09-11-2013 09:03 PM|
I don't know about you, but if I buy a 'better' part for my Jeep, it always goes in ASAP. Don't wait until you need it.
|09-11-2013 04:54 PM|
|b.lister||2012 JKS with 5000 miles. Battery died, dealer replaced under warranty with a higher amp battery this week.|
|09-11-2013 02:53 PM|
|gmichael403||2012 with 22,200 miles. Battery died yest. Dealer installed new.|
|09-11-2013 12:50 PM|
|nickmimi||I dont have a 2012, but did have battery problems in my 2011. Battery died a few times. Got tired of it and replaced with a Sears diehard platinum. I havent had any problems since. I have been able to run an ARB fridge for 3 days while camping and would still start without problems. I used to be a big fan of optimas, but the last 2 I bought had problems.|
|09-11-2013 11:11 AM|
UPS brought my new Odyssey battery. Odyssey Southeast recommended a PC 1220 rather than the PC1500. Exact dimensions as the stock. I asked about Sears Die Hard Platinum being Odyssey built. They were for a while but now built by East Penn Deka.
Just waiting for a Hiccup from the stock battery (37,000 mi) to slide in the Odyssey.
|09-02-2013 04:00 PM|
|Ricky Dog||Whats the latest on the Optima, Odyssey, Die Hard, "Shoot Out"?|
|08-28-2013 12:30 AM|
LBrito... I...I love you. Want a job? I struggle to find techs who actually want to know an answer for the reason of furthering ones knowledge base. I'm a little too
...inebriated to answer your questions intelligently tonight, but expect something soon! Maybe not tomorrow.. got a 2002 Land rover HSE that a customer attempted to jump start someone with and hooked the cables up backwards in his vehicle. So far I've got 13 blown fuses, one failed BCM and about 10 hours worth the problems to sort on this beast!
|08-27-2013 11:29 PM|
|Viper77||Took it to dealer Monday and they checked everything out...turned out to be bad battery. Just surprising considering I've only had it about year and half and it's got less than 25k miles. Glad that's all it was. They replaced it under warranty.|
|08-26-2013 07:12 PM|
Just wanted to clarify and perhaps go back and forth a little more in the interest of education. The clarification being that I don't advocate using flooded cell batteries, I'm not sure why Jeep doesn't standardize a better solution. Perhaps they will soon.
With regard to dual batteries, I don't see how it is more taxing to the charge system. 2 x 55Ah batteries would be the same as 1 x 110Ah battery. I understand that when you switch in a discharged secondary battery, then you change the load on the charge system, as the two in parallel will then try to equalize, etc. and you're temporarily left with sort of a varying load, varying voltage and current, etc. But, this doesn't seem too different then starting a vehicle with a almost dead battery and having the charge system the charge this battery, while running all the fancy stuff like Nav and whatever other accessories and varying draw the vehicle will see. Varying draw and alternator demand seem pretty standard for a modern vehicle. In a dual battery setup, you have redundancy, which is nice, since you can effectively lose a battery and still be okay. Versus with a single large capacity battery, if that dies, you're in trouble. I think it has its benefits versus a single battery in that respect, and the effect on the charge system seems minimal for a healthy adequately sized alternator like the 160A one on the JKs.
I didn't intend to say that dissimilar battery chemistry is ideal, as you said, the best bet would be to have batteries of the same type and capacity. With an isolator that cuts off the parallel connection at say 13V, when no charge voltage is present, then I also don't see how dissimilar chemistry and dissimilar floating voltage would matter much here, since they would no longer be tied together. They would be free to float at whatever voltage they wanted. I do see how this can be a problem when the disconnect voltage is set too low, say below the float voltage levels.
Now, to be fair, yes, a smart isolator or ACR, or whatever gets used is another potential failure point, so one can argue that its easier to swap a single dead battery than try to track down a problem with these things if one arises. Guess that's up to how comfortable each person would be with their understanding of these things.
Please don't think I'm trying to be rude or anything. Not my intention at all. I simply see things in the above way, and would love to hear more arguments on the topic, in particular from someone with your background.
Also looking forward to hearing about your battery test results. Subscribing to the thread this time!
|08-26-2013 10:08 AM|
|08-26-2013 12:06 AM|
|Viper77||My '12 JK has just 24k and the same thing happened...did not start yesterday morning and had no other warning signs. Going to take the battery and get it tested and go from there...|
|08-18-2013 02:24 PM|
|corvallisbattery||^ You forgot water leaks, uconnect issues and under body rust!!!|
|08-18-2013 12:42 PM|
|Xena1||AA heads, bad water pumps, bad batteries. Enough is enough! Ordered a 2014 and just hope the 2012 makes it until delivery!|
|08-18-2013 01:24 AM|
|08-18-2013 12:01 AM|
I stress this to all my customers...
Get your battery tested at least once a year. I say once before summer, once before winter. Any place worth a hoot will test it for free...in front of you.. and explain what they found. Over %45 of batteries of the road today would fail a load and or conductance test. Better to not be stranded. I good battery should last 4-7 years depending on climate and use. $100 for 4 years of use!? I wish my gas tank worked like that! Broken down to 4 starts a day over 4 years with a $100 battery comes to ˘.017 a start. Not bad
|08-17-2013 10:12 PM|
|RRP777||Hmmm. I'm just under 20K,something to look forward too soon.|
|08-17-2013 10:08 PM|
That is funny you guys should mention this battery issue. I have a 2012 rubicon that I ordered and received in July of 2011. And yes my battery died also. At 22,000 miles , I was totally surprised, have no aftermarket stuff on my jeep and my jeep is always garaged .
I drove 95 miles (highway) to Michigan from Illinois , stopped to eat , came out and the battery was completely dead. On a Saturday night , mind you. Not only that , they charged me for road side assistance, which they were not supposed to .
They did put a new battery in it( michigan dealership).
|08-17-2013 09:44 PM|
I'm surprised so many 2012's are going bad. Thanks to corvallis I'll know whats the best picks.
|08-17-2013 05:40 PM|
|08-17-2013 05:32 PM|
|corvallisbattery||All are being fix drained at 3 amps in a temp controlled (°70F) battery testing station (custom made) and being recharged independently through fixed voltage, variable current chargers in the same environment.|
|08-17-2013 05:28 PM|
|corvallisbattery||We are currently at 250+- discharge cycles to %30 depth of discharge. All are performing well.. the optima and oddessey have cycled in and gained about 20cca and 1-3 Ah RC. The diehard is the exact same as the start of the test. They should all start losing performance within the next 100 cycles.. we will see what one holds up best!|
|08-17-2013 03:49 PM|
|RRP777||You've got me real interested in the results on your side by side test. Hows it going so far?|
|07-01-2013 07:30 AM|
I have always bought Interstate batteries for my replacements and here's why. In every little tiny town everywhere there is a place that sells Interstate batteries and any of them will replace them no question asked. It has only happened to me once in the middle of no where. EVERY battery manufacturer has had some batteries with bad cells.
Interstate is the least hassle battery you can buy.
|06-30-2013 09:27 AM|
|joe buell||Have a 2012 2dr spt 12k on the clock took my mother to dinner on mothers day came out of restaurant around 8.30pm went on a sat she hates crowds anyway it was dead all lights doing crazy devilish sheet even with every thing off no key in switch glad my brother was there he took her home while I waited on a tow tried to jump it wit his Toyota 15min no good anyway it was the battery at least it was under warranty strange though it would only last to 12k but it doe's happen.|
|This thread has more than 30 replies. Click here to review the whole thread.|