2011 Grand Cherokee - AGM Battery - JeepForum.com

 
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post #1 of 7 Old 07-08-2010, 06:48 AM Thread Starter
Colt737
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2011 Grand Cherokee - AGM Battery

Why did Jeep decide to put the battery under the passenger seat, where the only way to get to it is to remove the passenger seat? Also I read AGM (Absorbent Glass Mat) batteries cannot be charged in the traditional way (it takes a few hours to charge it). Are these AGM batteries dependable in a Jeep?

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post #2 of 7 Old 07-08-2010, 10:14 AM
ISUzj
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I think that if it were me... i would swap out the battery ASAP so I can use a normal one..

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post #3 of 7 Old 07-08-2010, 10:51 AM
XJ2Timer
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It comes down to packaging. The front of vehicles are smaller for aerodynamics which makes it harder to put everything under the hood. Moving the battery also moves a heavy object from the front. It might also reduce vibration to the battery since it is closer to the center of the vehicle. And the battery is away from the engine heat which can kill a battery.
At least you don't have to take off a wheel and inner fender liner to replace the battery like on lots of cars. On the Chrysler 300 and Dodge Charger the battery is in the trunk. And I think some Buick's have the battery underneath the rear seat.
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.

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post #4 of 7 Old 07-12-2010, 07:14 PM
Jbostick
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I know on the M-Class suv there is a jumper box in the engine compartment that you can use to jump start the car or charge the battery, There battery was under the passenger seat also.
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post #5 of 7 Old 08-03-2010, 01:48 AM
Sarge_
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The battery ought to be in the rear, behind the passenger side wheel well. Better weight distribution, and room for a nice 1150 CCA AGM battery or two.

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post #6 of 7 Old 08-23-2010, 09:17 AM Thread Starter
Colt737
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Update

UPDATE: I recently read that the AGM battery under the passenger seat has an access panel which you can open by adjusting the passenger seat all the way foward, exposing the negative terminal (and assuming positive as well). Also read that the battery will have pos & neg charging posts under the hood, so you can still charge it the normal way.

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post #7 of 7 Old 09-16-2010, 06:33 PM
rockrunner
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Ive replaced 2, one in a laredo with non power seat and one in a hemi limited with power seats, the batterys arnt bad to take in and out once the seat is all the way slid forward and leaned forward. and yes there are jump starting posts under the hood

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