All gasoline lawnmowers run on gasoline, oil, and batteries, and knowing how to change the mower’s battery yourself can save you time and money. However, unlike many battery-powered devices, lawn mower batteries are very specific to the model and type of lawnmower. Make sure you get the correct type and follow these steps to replace your old one.
Almost all riding mowers and many walk-behind mowers come with a battery to start the machine. Many electric mowers use a battery to power the mower blade. When you put your lawn mower’s battery into winterization or need to replace it at the end of its typical five to seven-year life, you will need to remove and connect the battery cables. For safety reasons, this must be done in the correct order.
Step 1: find the battery
Lawnmower batteries are located in one of two locations: under the hood or under the mower seat. To find it, turn off your mower and remove the keys. Look in both places, then find and release the cover latch so you can access the battery. Remove any strap or pull holding the battery in place.
Step 2: remove the cables from the battery
Whenever you remove a battery, always remove the black or ground wire first. If the connectors are corroded, use a stiff wire brush to clean them. If the battery itself is badly corroded, use a paste of baking soda and water and apply it to the terminals. Let it sit for a few minutes before using the brush and clean water to rinse off the corrosion. Dry the water with a soft cloth. Be careful that the mixture or water does not get into the battery cells and rinse them well before removing them. The baking soda neutralizes the battery acid and will neutralize the battery if it gets into the cells.
If the connectors remain tight, use a flathead screwdriver to slowly and carefully remove the connector from the terminal. Do not force the cable to disconnect it, as it may come loose from the connection terminal. With the negative wire (black with a negative sign on the terminal) removed, remove the red wire (positive with a plus sign on the terminal).
Step 3 take care of the corroded terminals
There is often corrosion on the battery terminals that connect the battery cables to the terminals. Use a rag dipped in the baking soda mixture you made earlier and use it to clean the battery terminals and remove corrosion.
If your lawnmower has a bracket for securing the battery, you need to loosen it and move it to the side. To do this, insert a flathead screwdriver into the holder and turn the screwdriver counterclockwise to loosen the screw, and move the holder to the side.
Step 4 – Clean the ends of the terminal
Make sure the battery cable terminal ends are clean. To do this, insert the pointed end of the battery terminal cleaner into each battery cable and circle the cleaner to remove corrosion and dirt. Corrosion can have a significant effect on the power the mower will draw from the battery. Clean both wires until both circles are clean and shiny on the inside. Use a shop towel to clean up excess metal shavings, if any.
Step 5 – Replace the battery
Once you have removed the battery from the holder, clean (rinse) any corrosion or dirt and dry the holder. If the bracket is metal and shows signs of rust, sand and paint the rust spots, as battery fumes can accelerate rust.
Place the new battery in the holder and secure the tie rod or strap. When reconnecting the cables to the battery terminals, always start with the positive (red) cable. Connect it to the positive terminal and tighten the bolt to secure it. Follow this by also connecting the negative (black) wire to its respective terminal.
Replace the battery cover and test it to make sure everything works.
WHEN TO CHARGE YOUR COUPE BATTERY
You can drive your lawnmower for months without having to charge it. However, there are often times when you need to connect the battery to a charger to make sure it is full. Here are a few cases where you may need to charge your lawnmower:
Before starting the mower for the first time in early spring
Before putting your mower away for the cold winter months
Before mowing the lawn if the battery unexpectedly discharges for any reason
In other words, you probably don’t need to regularly recharge your lawn mower’s battery. Instead, you probably only need to connect the charger when the battery is unresponsive or if you plan to start or store it.
THE PROBLEM OF OLD BATTERY CHARGERS
Before you change your riding mower’s battery, you need to understand how far the battery chargers have gone. In the past, chargers often did not have the ability to stop overloading. The consequence of an overcharged battery is the release of toxic gases from the power source.
It is no longer a matter of concern. Today’s battery chargers have built-in systems to prevent overcharging. As such, you can probably plug in your battery charger and forget about it. When you return, even after several hours, you shouldn’t have to worry about harmful gases harming yourself or the natural environment.
FEATURES OF MODERN BATTERY CHARGERS
As mentioned above, if you are investing in a modern lawn tractor battery charger, you probably won’t have to worry about the many health risks that are common with older chargers. Plus, depending on the model you select, you can choose from a variety of innovative features, including the following:
Multiple mode settings include trickle charge, fast charge, and start.
Safety connection to avoid incorrect connections
Integrated charge timer
Auto power off
Pliers for several types of connections
Floating modes for optimal charging
Controlled amperage rates
However, you should know that not all chargers on the market today include all of the above features. However, if you’re looking to extend the battery life of your riding mower, it’s probably worth investing in a charger that has several of these options.
Tips and tricks to extend the battery life of your lawnmower:
– Many lawn mowing enthusiasts, especially those who have lawnmowers, will connect a slow charger to the mower’s battery if they do not use it again soon.
– You don’t have access to a slow charger? It’s good. Just make sure to fully charge the battery every one to two months.
– Check the battery from time to time to make sure there is no corrosive buildup or cracks in the case. Corrosion can be cleaned with baking soda and a wire brush. This will help prevent the battery from draining at a higher rate and causing premature failure.
– If your lawnmower battery is a wet cell battery, you may need to top up the water level with distilled water. Open the caps to check the water level and top up as needed.
– Be on the lookout for the main reasons why batteries fail prematurely to extend their lifespan.
Proper battery maintenance is a good way to help all of your battery-powered equipment operates at peak performance levels. From checking the tightness of the cables to regularly cleaning the battery terminals, taking care of your battery will take care of you.
Keep all cigarettes and sparks away from the battery when making connections; batteries can accumulate explosive gases. Do not wear loose jewelry when working with a battery as it may cause a short circuit. Never directly connect the positive and negative poles of the battery. Never establish a connection between the positive pole of the battery and the metal frame of the mower.