The 2011 Jeep Grand Cherokee battery location is in a somewhat unusual place, under the passenger seat, so it makes sense you can’t find it. You’ll have to move the passenger seat completely forward and into an upright position to get to the battery. If your car battery needs to be replaced, you could look at an expensive mechanic bill.
To check: Remove the cable and measure the resistance. If resistance is greater than 1-2 ohms, replace it. 3) There is a high resistance connection from the battery post to the lead plate in the battery. This is a very, very low possibility. A comprehensive battery load tester will find this problem. Optima batteries are AGM and can be charged at 13.8 volts so I don't know why Jeep's AGM battery needs to be charged at 12.65 volts. Not being able to use a regular charger is stupid. 1st one- 1989 Cherokee Laredo. 12 great years. 2nd one- 2001 Cherokee Limited.Different batteries have been built for different Jeep Grand Cherokee models and depending on the year of its production, however, most Grand Cherokees use group size 34 batteries. Make sure that you get the right size especially if you have a new model. This is because the wrong size will be unable to deliver the power needed by your car henceWhere's the battery on a Jeep Grand Cherokee. click . 19 24 133 139 222 40 40 19 132