How To Change A Lawn Mower Battery

Lawnmowers are, in fact, an indispensable specialty utility vehicle for individuals who are genuinely concerned about the management and overall appearance of their lawn. But being powered by an engine, it suffers from common vehicle problems, primarily a dead battery. Luckily, it’s relatively easy to change a lawnmower battery as compared to other vehicles.

All it takes are some safety precautions, such as wearing safety goggles and gloves to protect yourself from battery acid (if there’ s a leak) and an understanding of where the battery is located.

Usually, in ride-on mowers, the battery is located under the seat, while on push mowers, the battery is located on the deck near the handles. Once you find the battery, you must release the latch and loosen the straps to remove and replace the battery.

A lawnmower battery serves the same functions as a car battery. The battery helps start the engine of the mower and supports all other electrical functions. After several years of operation, you may need to replace the battery of the lawnmower.

Whether you have a push or riding mower, changing the battery involves the same process similar to changing a car battery. Learning to change the mower’s battery yourself will help save time and money. The most important thing is to make sure you get the correct type of battery and follow these steps to replace your lawnmower battery.

Essential Steps for Changing the Lawn Mower Battery

Step-1 .The first step is to move a push lawnmower or park a riding lawnmower onto a flat surface. Turn off the engine of the mower and let all moving parts stop. Now let the engine cool for a few minutes. You need to locate the old battery of the mower before replacing it. Lawnmower batteries are usually found in one of two places, such as under the seat or the hood of the mower.

If you operate a riding mower, you should look under the hood or seat of the unit to locate the battery. Push mowers have their battery located on the deck – near the handle – in a black box. Once you locate the battery of the mower, find and release the latch for the battery cover so that you have access to the battery. Remove the tie-down straps or bar that hold the battery in place.

Step-2. It’s essential that you wear gloves and put on safety glasses to protect yourself from battery acid. Prepare a baking soda mixture to remove any corrosion on the battery cables. Corrosion usually occurs at the location that binds the battery cables to the terminals. Mix one teaspoon of baking soda with one cup of lukewarm water in a disposable cup to prepare the mixture.

Pour the mixture on terminals of the battery to dissolve any corrosion in the region. Most lawnmowers have battery-stabilizing brackets to insert screws into the battery. Place a flat-head screwdriver into the bracket and turn the screw counterclockwise to loosen it. Now push the bracket to one side.

Use an adjustable wrench and turn the negative terminal counterclockwise to loosen it. Loosen the positive battery cable similarly. Now you need to pull the battery cables up, and the old battery will come up accordingly.

Remove the old battery from the box of the mower. Use the center handle of the battery to remove it and place it aside. Once you remove the old battery from the box, check if there are any signs of rust or corrosion on the holders. Use a battery terminal cleaner to remove any corrosion in the area.

Insert the pointed end of the battery terminal cleaner into the battery cable. Rotate the cleaner in a circle to remove any rust or corrosion in the region. Clean each cable until they are free of any rust and corrosion. You may sand and paint the rust spots since battery fumes could accelerate rust.

Step-3. The next step is to place the new lawnmower battery in the battery box. Apply a thick coating of petroleum jelly to the new battery terminals before attaching the tie-down straps. This will prevent the development of corrosion on the new battery terminals. When re-attaching the cables to the battery terminals, you should always start with the positive or red cable.

Connect it to the positive terminal of the battery and tighten the bolt to secure it. Likewise, attach the negative or black cable to the respective terminal thereafter. Replace the bracket of the battery and tighten the screws clockwise – to hold the bracket in place. Replace the cover of the battery and test it to make sure everything is working properly.

Make sure you dispose of the old battery properly since they are toxic. Take it to a recycling center or auto parts store.

3 Tips for Installing Your Lawnmower Battery

Following the steps discussed above, it is clear that changing the battery in a lawnmower is indeed easy if you have access to a step-by-step guide and a basic understanding of your lawnmower.

However, professionals always recommend following certain safety precautions to ensure safe and trouble-free battery removal.

If you are planning to change the battery in your lawnmower yourself, you should consider adhering to the few basic personal safety precautions enumerated here:

1. You should wear protective gear before replacing the battery. Safety glasses and gloves are important.
2. All batteries are not the same. You should choose the right battery for the specific make and model of your lawnmower. Don’t forget to check the battery for corrosion at least once a month. Read the owner’s manual to ensure you are charging the battery correctly. Preventive maintenance is essential to improve the efficiency of the battery and prolong its lifespan.
3. Don’t touch the adjustable wrench to any other metal part of the lawnmower when changing the battery. Sparks may fly and cause the battery to discharge.

Learning to replace the mower battery yourself can save you a lot of time and money. Not only will this knowledge help you protect your mower from unwanted scenarios such as battery leakage, which in most cases can seriously damage nearby circuits, but it can also help you operate your mower without giving you headaches while starting.

I hope you find the aforementioned article, providing information on how to change a lawnmower battery, to be helpful and should you have any concerns, please feel free to discuss them with us in the comments section below.