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Dodge Challenger 12V Automotive Battery Replacement Guide
How to change the 12 volt car battery in a 3rd generation 2008-2015 Dodge Challenger with photo illustrated steps & part numbers.

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2015 Challenger Trunk
Lift Spare Tire Cover
12V Battery On Right Side
This automotive maintenance tutorial was specifically written to assist owners of the third generation (2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 & possibly also the 2016 model year) Dodge Challenger in changing a dead or weak 12 volt car battery located in the trunk next to the spare tire.

Owners of other Chrysler, Dodge and RAM vehicles such as the Town & Country, 300, 200, Avenger, Charger, Journey, Dart, Durango, Grand Caravan, and Ram C/V Tradesman minivan may also find these DIY instructions to be helpful.

A few compatible replacement "Group Size" H7 or 94R batteries with part numbers are as follows: ACDelco 94RAGM Exide FP-AGML4/94R, EverStart Platinum AGM H7, EverStart MAXX-H7, Bosch 94R730B or 94R800BAGM, NAPA Legend 9894R or 7594R and AutoCraft 94RH7 or H7-AGM.

The tools needed to complete this procedure include a 10mm socket, an extension bar and a 1/4" drive ratchet.

Press Metal Release Tab
Loosen Battery Strap
Loosen Negative Terminal
The 12V car battery is located in the trunk of the vehicle next to the spare tire.

Open the trunk lid and lift the carpeted trunk mat to access the battery.

Press the metal release tab on the vinyl strap that holds the battery in place and loosen it a few inches.

Then loosen the negative "-" battery terminal by turning the nut counterclockwise with the 10mm socket and ratcheting wrench.

Pull Off "-" Negative Terminal
Cover & Tuck Away Terminal
Pull Off Plastic "+" Cover
Pull the negative terminal straight off the "-" battery post.

Cover the terminal with a small towel and tuck it away on the side of the trunk to help prevent accidental contact.

Pull the red plastic cover off the positive "+" terminal and set it aside in a safe place.

Loosen Positive Terminal
Pull Off "+" Positive Terminal
Both Terminals Disconnected
Then loosen the 10mm nut on the positive terminal by turning it in the counterclockwise direction.

Pull the positive terminal straight off the "+" battery post.

Battery Hold Down Clamp
Rubber Battery Vent Tube
Pull Off Battery Vent Tube
The battery is held in place by a metal bar at the back edge (closest to the rear bumper).

Don't forget to pull out the rubber exhaust vent hose from the rear of the battery.

10mm Socket & Extension Bar
Loosen 10mm Bolt
10mm Bolt Removed
Attach the 10mm socket and six inch extension bar to the ratcheting wrench.

Loosen the 10mm battery hold down bar bolt by turning it counterclockwise.

Remove the bolt and set it aside in a safe place.

Battery Hold Down Bar
Lift Out Old 12V Battery
Rest On Ground
Pull out the silver metal hold down clamp and set it aside in a safe place.

Carefully lift the old battery out of the trunk and gently set it down on the ground.

Try to avoid tipping or dropping the old battery to prevent from cracking it and/or having battery acid leak out.


OEM Part # 56029635AD
Clean Off Battery Tray
Lower In New 12V Battery
The OEM 12V battery in this 2015 Challenger was a Johnson Controls Battery Group Part Number 56029635AD.

If you can wait a day or two, I recommend buying the ACDelco 94RAGM battery from Amazon since it has great reviews.

Clean off any debris from the plastic battery tray so that the new battery will rest evenly on it.

Carefully lower the new 12 volt battery down in to the trunk and on to the plastic tray.

Make sure the new battery is orientated with the positive "+" battery post closer to the front of the car and the negative "-" battery post near the rear bumper to match the orientation of the old battery.

If you've had a problem with corrosion (white or blue powder) building up on the terminals or the battery posts, I recommend installing some felt anti-corrosion washers over the battery posts.

Push In Battery Vent Tube
Push On Positive Terminal
Tighten 10mm Terminal Nut
Push in the battery exhaust vent tube in to the hole on the front edge of the battery (near the back of the trunk).

Push the positive battery terminal on to the "+" battery post near the rear of the trunk.

Tighten the 10mm terminal nut by turning it clockwise with the socket and ratcheting wrench.

Replace Red Plastic Cover
Replace Metal Hold Down Bar
Line Up Bolt Hole
Push the red plastic cover over the positive terminal.

Replace the silver metal battery clamp bar at the rear edge of the battery (close to the back bumper).

Line up the bolt hole in the clamp bar with the bolt hole on the battery tray.

Tighten 10mm Bolt
Push On Negative Terminal
Tighten 10mm Clockwise
Re-insert the 10mm bolt and tighten it in the clockwise direction until it is snug.

Check that the battery can not be moved, slid or wiggled on the plastic tray. If it can be moved, tighten the clamp bolt an extra turn or two.

Try to avoid over tightening the battery hold down bar to prevent from cracking the plastic battery housing which may cause an acid leak.

Push the negative terminal straight on to the "-" battery post.

Tighten the 10mm battery terminal in the clockwise direction until it is snug.

Do not over tighten the terminal nut to prevent from damaging the battery post.

Tighten Vinyl Battery Strap
New Battery Installed
Replace Trunk Mat
Pull the vinyl strap to tighten it and secure the new battery in place.

Lower the carpeted trunk mat down in to place to cover the spare tire and battery.

Be sure to record the battery change in your car's service records.

For more, check out my other 2008-2015 Dodge Challenger DIY Repair & Maintenance Guides.

If you found this guide to be helpful, please consider making a small donation by clicking on the "Donate" button located to the right of this paragraph. Thank you!
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