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Nissan Maxima 12V Automotive Battery Replacement Guide
How to change a dead 12 volt battery in the engine bay of an 8th generation 2016, 2017 or 2018 Nissan Maxima.

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2016 Maxima 12V Battery
Loosen Negative Terminal
Pull Terminal Off Post
This automotive maintenance tutorial was specifically written to assist owners of the eighth generation (2016, 2017, 2018 and probably also the 2019 and 2020 model years) Nissan Maxima sports sedan in changing a dead 12 volt car battery for the VQ35DE 3.5L V6 engine.

Owners of other Nissan or Infiniti vehicles such as the Versa, Altima, Juke, Rogue, Rogue Sport, Murano, Xterra, Pathfinder, Sentra, Cube, Armada, Leaf, Quest, Frontier, 370Z, GT-R, Titan, Kicks, NV, NV200, G25, G37, M35 and M37 may also find these DIY instructions to be helpful.

The OEM battery is "Group Size" number 35.

A few compatible replacement batteries with their part numbers are as follows: Odyssey 35-PC1400T, DieHard 38275, Optima 8040-218 D35 and EverStart MAXX-35N (Walmart).

The tools needed to complete this procedure include a 10mm wrench or a deep well 10mm socket with a 1/4" or 3/8" drive ratchet.

Black Metal Battery Clamp
Loosen Counterclockwise
10mm Nut Removed
The first two steps are to open the hood and then move to the right (driver) side of the engine bay.

The 12 volt battery is located in front of the engine air filter box, behind the driver side headlight assembly and to the left of the electrical fuse boxes.

Loosen the nut on the negative "-" terminal by turning it in the counterclockwise direction with a 10mm socket and a 1/4" drive ratchet.

You don't need to fully remove the terminal nut, just loosen it a few turns until you can pull the terminal off the battery post.

Pull the negative terminal straight off the "-" battery post, wrap it in a small towel and tuck it away on the side of the battery to help prevent accidental electrical contact.

Upper Nut - ECU Bracket
Loosen Counterclockwise
Rotate Bracket Up
Next, you'll need to remove the lower nut on the ECU (the car's computer which is either known as the electronic control unit or the engine control unit).

Set the nut aside in a safe place.

Then loosen the upper nut on the ECU mounting bracket.

Carefully rotate the black metal bracket up and away from the old battery.

Deep Well 10mm Socket
Loosen Counterclockwise
Loosen 2nd Nut
The battery "clamp" or "hold down bar" is held in place by two nuts attached to the top of the two black metal vertical bars.

Loosen the two nuts by turning them in the counterclockwise direction with a deep well 10mm socket and a ratchet or a standard 10mm wrench.

Two Nuts Removed
Lift Bar Off Old Battery
Open Red Plastic Cover
Set the two nuts aside in a safe place.

Carefully lift the bar off the top of the old battery and set it aside.

Avoid making contact with the terminals or battery posts.

Flip open the red plastic cover on the positive terminal.

Loosen Terminal Nut
Pull Off Positive Terminal
Cover & Tuck Away
Loosen the nut on the positive terminal by turning it in the counterclockwise direction with a 10mm socket and a 1/4" drive ratchet.

Pull the positive terminal off the "+" batter post, cover it with a small towel and tuck it away on the side of the battery to help prevent accidental electrical contact.

Lift Off Battery Heat Shield
Old Battery Removed
OEM Part # 24410 JA10B
Carefully lift the battery heat shield cover off the old battery. Save it for re-installation later over the new battery.

The OEM battery was a Johnson Controls part number 24410 JA10B (also known as 24410-JA10B or 24410JA10B) which has a reserve capacity of 113 minutes and 550 cold cranking amps (CCA).


Clean Off Battery Tray
Lower In New Battery
Replace Battery Cover
If there is any debris on the battery tray, clean it off so that the new battery will rest evenly on it.

If you can wait a few days for delivery, I recommend buying the Odyssey 35-PC1400T 12V battery since it has excellent reviews on Amazon.

Carefully lower the new battery into the engine bay with the positive "+" post situated closer to the rear of the engine bay and the negative "-" post located closer to the headlight at the front of the car.

Lower the foam and fabric battery heat shield cover over the new battery.

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

Push On Positive Terminal
Tighten Nut Clockwise
Replace Plastic Cover
Push the positive terminal on to the "+" post located closer to the rear of the engine bay by the air box.

Tighten the terminal nut by turning it in the clockwise direction with the 10mm socket and a ratchet until it is snug.

Avoid over tightening the terminal nut to prevent from damaging the battery post which could lead to an acid leak.

Push the red plastic cover closed over the positive terminal.

Lower Hold Down Bar
Spin On 10mm Nut
Replace Second Nut
Lower the hold down bar over the top of the new battery with the threaded ends of the bars going through their corresponding holes.

Spin on the two 10mm nuts in the clockwise direction a few turns by hand to prevent them from becoming cross threaded.

Lower ECU Bracket
Spin On 10mm Nut
Tighten Clockwise
Swing the ECU bracket over the threaded metal bar located on top of the hold down clamp.

Spin on the 10mm nut.

Tighten the top nut on the ECU bracket in the clockwise direction with the 10mm socket and ratchet until it is snug.

Tighten Clockwise
Nissan-Maxima-12V-Automotive-Battery-Replacement-Guide-035 Nissan-Maxima-12V-Automotive-Battery-Replacement-Guide-036
Hold Down Bar Secured
Tighten the two nuts on the hold down bar in the clockwise direction with the 10mm socket and a ratchet.

Check to see if the new battery can be moved, rocked or slid around on the tray.

If the new battery can be moved, tighten the two nuts on the hold down clamp an extra turn or two.

Push On Negative Terminal
Tighten Nut Clockwise
New 12V Battery Installed
Push the negative terminal on to the "-" post located closer to the front of the engine bay.

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

To test your new battery, start the engine, turn on the headlights and flash the high beams.

Please remember to adjust the time on the clock and program your favorite radio station presets before you start driving.

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

Please check out all of my 2016-2018 Nissan Maxima 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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