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How to Change a Lawn Mower Battery

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How to Change a Lawn Mower Battery

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Overview

There are many different varieties of riding lawn mowers out there. However, like cars, removing the battery involves virtually the same process no matter what model of lawn mower you own. However,it's still a good idea to carefully read your lawn mower's manual to acquaint yourself with any special procedures, warnings or suggested battery replacement frequency given by the manufacturer.

Step 1

Park your lawn mower on level ground in an open area with plenty of air circulation. Batteries can release a toxic hydrogen gas.

Step 2

Turn off the engine, lights and any other electrical devices.

Step 3

Lift the hood of your riding mower and find the battery. Remove the strap, lift the cover or use a screwdriver to remove the holding bar if it is present.

Step 4

Scrape any corrosion off of the cables. The easiest way to do this is to simply brush it off with a stiff wire brush. Wear gloves to ensure that none of the corroded material gets on your hands. If the terminals are badly corroded, make a thick paste with baking soda and water. Then dip a toothbrush into the paste and scrub the stubborn corrosion off. Finally, wipe off any residue with a damp rag.

Step 5

Remove the cable with a wrench. First loosen the negative cable and slide it off of the battery's negative terminal. Then loosen the positive cable and slide it off of the battery's positive terminal.

Step 6

Remove the battery from the metal box by lifting it upwards.

Step 7

Insert the new battery in the old battery's place.

Step 8

Reattach the cables. Start with the negative cable. Slide it on to the negative terminal of the new battery and tighten it with your wrench. Then repeat the process with the positive cable.

Step 9

Replace the battery cover, strap or bar if present.

Step 10

Recycle your lawn mower battery at a recycling center.

Things You'll Need

  • Screwdriver
  • Wrench
  • Toothbrush
  • Rag
  • Baking soda
  • Water

References

  • Lawn Mower Battery Maintenance
Keywords: change battery, mower battery, lawn mower

About this Author

Emma Gin is a freelance writer who specializes in green, healthy and smart living. She is currently working on developing a weight-loss website that focuses on community and re-education. Gin is also working on a collection of short stories, because she knows what they say about idle hands.