rob_engineer

My 2012 Jku has been perfect since I bought it new 2.5yrs and 50,000 miles ago. Suddenly this morning the battery was stone cold dead. Took a while, but I was able to jump it. Then the instrument panel went wacky as the jeep was driving. I installed a new battery. Problem solved.

Jeepstin12

My battery dies right around 2 years. The newer batts give full starting ability until that last drop.

AngryRedBird

rob_engineer Factory Battey?.. yeah same here.. Had to get the Die Hard.. thou I would have preferred the Optima.

rob_engineer

Yes, factory battery. Went with Walmart Maxx everstArt. Actually has higher CCA than the factory. Comes with 3 yr total replacement warranty. Cost $117 after core.

dcaprio

Rob_engineer, mine did the same exact thing. 2012 with 50k came out of work and batt was completely dead. Took a while to jump and then gauges went crazy. I went with the Walmart Ever start Maxx . great deal and no issues so far.I am guessing 50k is the life expectancy of the factory batt.

AngryRedBird

Agreed dcaprio seems about right, ours did the same now that I think about it. so I wonder if Mopar realizes this..

ylojelo

2012 drove fine two days ago, came out yesterday morning and the battery is so dead it could nearly unlock the doors. I was getting on to the forum for help to find the electrical short, until I saw this at the top. Of course I never trust advanced to check my batteries, they never got it right when I had opimas. how can I test the battery, take it to sears?

crusaderJK

I hate to read such info while I have close to 49k on my Jeep....

calys003

I went 3 weeks at a time with out diving my 2012 and the battery would be dead. I ended up putting a trickle charger on. I know it's not the same but I can leave my bike or z3 for months and they start right up.

Pylot7

Most auto parts stores can load test a battery for you. Most batteries including one that won't start your car, unless dead shorted, will read 12 volts. But when you put a load on them a dead one will collapse.