Owners of other Mazda vehicles such as the Mazda 2, Mazda 3, Mazda 5, Mazda 6, CX-7, CX-9, and the MX-5 Miata may also find these DIY instructions to be helpful.

The OEM battery in this 2013 CX-5 was Panasonic part number 55D23L-MF or 55D23LMF.

A few other compatible replacement "Group Size 35" batteries with their part numbers are as follows: Bosch S6523B S6, Bosch 35-640B, NAPA BAT 8435, Duralast 35-AGM, Optima RED35 and Duracell SLI35.

The tools needed to replace the battery include a deep well 10mm socket, an extension bar and a 1/4" or 3/8" drive ratchet.

First loosen the nut on the negative "-" terminal by turning it counterclockwise with the 10mm socket and ratcheting wrench.

Pull the negative terminal straight off the "-" battery post, wrap it in a towel or rag and tuck it away on the side of the battery.

Covering the battery terminal with a towel will help prevent accidental contact with the battery post.

Once the two nuts have been loosened a few turns, you should be able to unhook the two "J" bars from their brackets.

Swing open the plastic cover on the positive "+" battery terminal.

Loosen the 10mm terminal nut by turning it counterclockwise.

Wrap the positive terminal in a small towel or rag and tuck it away on the side of the battery to help prevent accidental contact with the posts.

Pull the battery box (A.K.A. "heat shield") straight off the old battery and set it aside in a safe place.

Try to avoid dropping or tipping over the old battery to prevent from having battery acid leak out.

Carefully lower the new battery in to the engine bay with the "-" negative terminal near the windshield and the "+" positive terminal closer to the front of the vehicle.

They are very cheap insurance against having to replace your battery terminals.

First, push the positive terminal on to the "+" battery post.

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

Try to avoid over tightening the terminal nut to prevent from damaging the battery post.

Then push the negative terminal on to the "-" battery post.

Carefully lower the battery hold down clamp and two "J" hook bars down over the new battery.

Spin the nuts a few turns by hand in the clockwise direction to secure the "J" bars to the battery tray.

Double check that the new battery can not be wiggled or moved back and forth on the battery tray. If it can be moved, tighten the two 10mm nuts on the clamp a few more turns.

To test the new battery, start the engine and turn on the headlights.

Be sure to set the time on the clock and set your favorite radio station presets before driving the vehicle.

For more, check out all of my Mazda CX-5 DIY Repair & Maintenance Guides.