How To Charge A Lawn Mower Battery Safely

If you're finding it difficult to start your lawn mower, it may be a sign that you need to recharge your lawn mower's battery. While changing your lawn mower's battery is straightforward, many modern lawn mowers can have tricky to find batteries or alternate processes. But no matter if it's lead-acid or lithium-ion, our diligent team at Mowrator have written this article to help you charge your lawn mower battery safely.

Key Takeaways

• Charging your battery requires finding your battery, connecting it to the charger, setting the proper voltage and amperes, and then waiting for it to fully charge.
• The best time to charge your battery is right after using it and before you winterise your lawn mower.
• You can also charge your mower by using a car battery or with a supercharger.

How to Charge Lawn Mower Battery With Battery Charger | Step-by-Step

If you want to learn how to charge a mower battery from start to finish, you've come to the right place. We've outlined every step you need to take to efficiently and safely charge your mower battery.

1. Prepare Yourself. Between 2005 and 2015, there were about an average of 85,000 injuries caused by lawn mowers in the United States. A percentage of those injuries were chemical burns caused by tampering with the battery. Don't let yourself be caught unaware, and wear protective safety gloves and glasses while ensuring your lawn mower is turned off.
2. Find Your Battery. Your lawn mower battery will be located in different places depending on its model and type. You'll typically find a riding lawn mower battery in the front hood, while push mowers store them towards the back of the mower. Refer to your owner's manual to find where your lawn mower battery is held. For those curious about the cordless lawn mower lithium battery market, keep in mind that lithium-ion batteries are becoming more common due to their lightweight design and longer lifespan.
3. Disconnect Your Battery. Once you've located the battery, start by removing the negative terminal (usually marked with a negative symbol or coloured black). You can usually do this with a wrench or screwdriver. Follow up by doing the same to the positive terminal (marked with a positive symbol or coloured red). Once removed, you can take the battery from its casing.
4. Disconnect Your Charger. Before attempting to connect the charger to the battery, make sure that you've disconnected or turned off the charger.
5. Connect Your Charger To Your Battery. Connect the charger's red cable to the positive battery terminal (marked by +), followed by the charger's black cable to the negative battery terminal (marked by -).
6. Set The Voltage And Amps. Next, you'll need to set the voltage and amperes to fully charge your lawn mower's battery. For most lawn mowers, the how many volts lawn mower battery should be set to 12 volts, although smaller lawn mower batteries may only require 6 volts. The amps should also be around 10 Ah, as anymore can overcharge your lawn mower battery and deteriorate it.
7. Charge Your Battery. Once you're ready, simply turn on the charger and begin to charge your lawn mower battery. If you're worried about the battery dying or getting stuck, consider investing in a lawn mower jump starter to give your mower the power it needs when you're in a pinch.
8. Keep An Eye On Charging Time. The charging time of your lawn mower will vary depending on the type of mower. You can expect your lawn mower to be fully charged within 1 to 8 hours, although the smaller the battery, the quicker it'll charge. Mowrator's S1 Remote Control Lawn Mower 4WD, for example, only takes 90 minutes to fully charge with a Supercharger.
9. Safely Disconnect Your Charger. When your lawn mower battery is fully charged, turn off the charger and remove the charging cables from your battery terminals. Remove the black cable first and then the red cable to reduce the chances of your battery and charger short-circuiting.
10. Place Your Battery Back. Carefully place your battery back into the lawn mower and attach the mower's terminals back with your wrench or screwdriver. Once tightly fastened, place the protective casing back onto the battery and close your lawn mower.

When is The Best Time To Charge a Lawn Mower Battery?

The best time to charge your lawn mower battery is after you've finished using it. If you plan to winterise your lawn mower, charging it before you place it for storage will stop it from deep discharging and ruining the battery. If you don't have a cool or dry place to store the battery, then it's recommended you remove the battery from the lawn mower and store it in a more suitable location — any location that's too hot or too cold can harm your battery.

What are Alternative Ways to Charge a Lawn Mower Battery?

If you need to charge your lawn mower battery but don't have a charger to recharge it with, there are several alternative ways to do so. In emergency situations, you can use a car battery to jump-start a lawn mower by following the same steps we've outlined above (a riding mower may also do the trick). Similarly, you can use a jump pack to restart a dead 12-volt battery, although you'll need to plug your jump pack beforehand.

The S1 Remote Control Lawn Mower 4WD uses a Supercharger, one of the quickest ways to charge the battery. You can take a quick break while your lawn mower reaches a full charge in less than 90 minutes, and then get back to mowing your lawn without missing a beat. Mowrator offers innovative lawn mower technology and accessories for the modern homeowner — shop our range today.

FAQs on How To Charge A Lawn Mower Battery Safely

How long does it take to charge a Lawn Mower Battery?

Most electric lawn mower batteries take between 3 and 4 hours to fully charge, although they are usable after at least 1.5 hours of charging. If your lawnmower has a Supercharger, you can expect models like Mowrator's S1 Remote Control Lawn Mower to fully charge in less than 90 minutes.

How many amps is a Lawn Mower Battery?

Your lawn mower's battery is likely between 8 Ah and 40 Ah, depending on the make and model. Generally, the more powerful the lawn mower, the higher amperes it requires to allow its components to function.

Are Lawn Mower Batteries 12V or 6V?

Lawn mower batteries use a 12-volt battery, but you may find some smaller models will be limited to a 6-volt battery instead. Finding out the lawn mower battery voltage and amps is critical for knowing how you need to charge the battery, so make sure to check your owner's manual or online for its details.

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