Best Lawn Mower Battery Charger (Buyer’s Guide)

Published on: March 29, 2022
Written by Liam Jaxon / Fact-checked by David Rowan

So, you’ve found your lawn tractor battery empty after winter due to storing idle the whole time!

Don’t worry! It happens!

You can make your tractor batteries active by simply recharging them with the perfect charger. And if you’re confused to see a number of options to choose from, have a look at this buying guide.

Here we’ve shortlisted some best chargers on the market which can reactivate your tractor battery in a short time.

So have a look at the guideline, and you’ll be able to check your battery, pick the perfect one for your battery and recharge them properly.

Let’s get started…

What is a Lawn Tractor Battery?

The lawn tractor battery enables the garden tractor to figure efficiently. A perfect one will even reduce the probability of replacing the batteries often. Most lawn tractors come with defective batteries to support the tractor in performing at its peak efficiency. And over time, they’re going to need to replace them.

Four Things You Should Consider for Lawn Mower Battery Charger

You don’t even have to be complicated to pick a new lawn mower battery charger. Use our purchase guide below to inspect lawn mower battery chargers! This will make it easier for you to see the best

Voltage

In the first place, check which voltage you want. It might very well be 6-volt, 12-volt, or 24-volt.

Type of Charger

If you have a lead-corrosive style battery, you can pick the best charger for your condition. For this situation, look for one that offers a maintenance mode and may be permanently attached to the battery.

This will give your battery the most extended life possible, and can even revive what looks like a dead battery.

It will give your battery the most expanded life conceivable, and could actually resuscitate what resembles a dead battery. Around 2-amps is great for stream charging batteries, however, you can utilize something like 8-amps. The lower the amperage, the more extended the battery will take to re-energize.

Type of Connector

In the third stage, do you really want a particular connector? Cordless lawn mowers will generally have this, and the Earthwise 24-volt battery charger could be great.

Security 

You will observe a range of security highlights presented by different chargers and we similarly conduct an audit that can double charge four batteries.

How to Know the Battery is Dead

Sometimes you may get confused if the tractor battery needs to be recharged or not! Because it can lose its charge during winter while stored for months without use. You can make them work by charging for only a few hours but how can you know it is dead or not working for any other technical fault?

Well, you can know that by following these simple steps-

Step 1:

Sit on your lawn tractor and depress the clutch then turn its key if the engine doesn’t crank or crank slowly or make noises, your battery is dead.

Step 2:

Now turn off and remove the key. Then find the battery, shake the cable gently and make sure that they are well connected to the battery. If not, tighten them with a wrench and start again.

Step 3:

If you’re using a wet-cell battery, you can remove the caps with a flathead screwdriver and check the water level. If it isn’t full, refill the cells with distilled water.

Step 4:

Recharge the battery for 6- 8 hours. If it doesn’t indicate full charge within 8 hours, you may need to replace the battery.

How to Charge Lawn Mower Batteries

It’s very common to find a dead battery at the beginning of your lawn care season. The reason for a dead battery is to retain the cables connected to the battery when the tractor is not in use.

But you can make them run again like before just by recharging them with the right type of lawn battery charger.

To charge your tractor battery, you can follow these steps,

Precautions

Always charge your batteries in an open or well-ventilated space, not in an enclosed area.

To avoid any injury or damage to the tractor, never touch the terminals with bare hands, and don’t bridge the terminals with any tool or other types of conductor.

Always follow the manufacturer’s instructions before charging your tractor battery.

Choose the Charger

For choosing the right charger, you need to consider the volt of the battery. Generally, a modern lawnmower comes with 12-volt batteries. And most battery chargers are able to handle a certain range of voltages, and they allow you to switch between the voltage that is suitable for your battery.

You may have a charger with a few additional settings like- Trickle/ fast charging, 2 amp slow charge option/ timed charging, and jump mode. Among these options, the 2 amp charging option is the best option for lawnmowers because it allows a thorough and deep charge.

Charging the Battery

Connect the charger cables to the battery before connecting them to the power outlet. To connect with the battery, hook up the positive cable first; you can identify them by their red color or look for the (+) symbol. Then hook up the black-colored negative cable with the (-) symbol.

Now set the charge rate on your charger and plug it into the power outlet. Generally, it may take 4- 6 hours to be recharged fully.

Disconnect the Charger

When the charge is completed, switch the charger off if it comes with an off switch then unplug it from the outlet. If the charger doesn’t have an off switch, unplug it from the outlet after completing recharging.

Before disconnecting the cables from the battery, wait a few minutes to disperse any accumulated gasses. After a few minutes, unclamp the negative than the positive cable from the battery.

What Safety Precautions Should Be Taken When Using a Lawn Mower Battery Charger

1. Wear protective gloves and eyewear when handling and connecting the battery charger.

2. Read and follow all safety and operating instructions that accompany the charger.

3. Make sure the charger is plugged into a grounded outlet.

4. Disconnect the charger from the outlet before making any connections to the battery.

5. Make sure that the charger is compatible with the lawn mower battery.

6. Do not leave a charger connected to the battery for too long, as this can cause damage to the battery.

7. Make sure the charger is kept away from water and flammable materials.

8. Make sure the charger is stored in a dry, safe place.

Top 6 Lawn Mower Battery Chargers

1. 24-Volt Lawn Mower Battery Charger by Earthwise

• 24 volt;
• Indicator light.

To be honest, this is not a genuine Earthwise charger, preferably a close dupe of it. The genuine one comes with a higher (3 amp) amperage and better quality. Needless to say, the price is also higher for the real one.

This dupe 24-volt charger has all the facilities of the real one and is even backed by a long warranty. It is affordable too. To charge a battery of fewer than 24 volts, this inexpensive charger will surely work well. Works perfectly with all 24-Volt Earthwise Cordless Lawnmowers battery chargers. Its amperage is a bit lower, so it takes time to get charged fully. Besides, the charging indicator light can’t be seen in broad daylight.

Despite these, the charger itself is okay to charge low voltage and low amperage batteries like a lawnmower and so on.

Pros

• Long warranty;
• Affordable price so anyone can buy it.

Cons

• Not the genuine one;
• The indicator light is difficult to read during the day.

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2. 15-volt Lawn Mower Battery Charger by AYP

• 15 volt;
• 0.3 amp.

If you own a lawn or deck mower of widely used brands, then you must need a charger from popular makers as well. This charger from AYP is compatible with mostly used lawn mower brands and is a great replacement for chargers of different models. Whether the mower you are using is from Poulan Pro, Poulan, Craftsman, Roper, Sears, Husqvarna, Weedeater, Rally, EHP or Yard Pro, this charger will serve you right.

Initially, it will take two days to charge a fully drained mower battery fully. But once it is done, your battery will be ready to do 10 to 20 mowing sessions without a hitch. The price of this charger is much lower on Amazon than in the local stores. So, place your order right away if the brand of your lawnmower matches the list.

Pros

• Compatible with leading brands lawn mower batteries;
• Cheap price;
• Lightweight.

Cons

• Low amp. 

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3. 6V/12V Automotive Battery Charger/Maintainer by BLACK+DECKER

• 12 volt & 6 volt; 
• 1.5 Amp;
• Battery charger and maintainer.

This charger is the most versatile one among all the charges I have reviewed in this list. Apart from your lawnmower, from RV to motorcycle, boats, even snowmobile batteries can be charged with it. Most people keep this charger connected with their vehicle and charge their lawn mower battery when required. For easy connections, both alligator clamps and O ring terminals are included with it. Automatically stop charging when the battery is fully charged. Made with circuit protection guards that protect from overcharging, reverse polarity, or short circuit issues.

The feature that makes it a versatile charger is its slide-on switch that lets you charge 6 and 12 volts batteries, whether GEL, WET, or AGM type. There is no need to buy a separate charger just for different applications. This charger will charge almost every vehicle battery one can possibly own. Surprisingly, the price is just like other lawn mower battery chargers, nothing expensive.

Pros

• Versatile use;
• Compatible with AGM, Gel and Wet batteries;
• Overcharge and short circuit protected. 

Cons

• Gets warm while charging. 

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4. 12-volt Smart Charger for Wet, AGM, Gel, Cell, and Lead Acid Batteries by Mroinge

• 12 volt, 1 Amp;
• 4- stage charging.

The features of this charger are much like our top pick Black and Decker charger. The difference is, it has only one volt. So, if your lawnmower battery is 12 volt or lower, then this review is for you. It is a good battery charger and an even better battery maintainer. The charger has four stages to protect the unit from short circuit, overload, reverse polarity, and even from overheating. It is literally a ‘plug and play, then forget its deal. You can use it in multiple batteries.

Its amperage is lower than the top pick, so it will take a while to charge a drained battery. But mostly, we never disconnect our chargers from automotive batteries, so that’s not going to cause any trouble. This charger will automatically shift to ‘float’ mode whenever the battery is full, and it will return to ‘trickle’ mode when the battery needs to be charged. All these facilities, along with protection, are available at a budget-friendly price.

Pros

• Long DC cord;
• Auto float mode;
• Works with any vehicle battery;
• Charge and maintain. 

Cons

• No cons. 

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5. 12 Volt Junior Automatic Battery Charger by Battery Tender

• 12 volt, 1 Amp;
• 4- stage charging.

For a safe and solid charger for lawn mower battery, this charger from Battery Tender is a wise option. It is solid because it is lightweight, compact and backed by an incredibly long warranty.

On the other hand, it is safe to use because it is well protected from possible damage from overcharging, overheating, short circuits, and a plus, from sparks. Almost all chargers in the market claim to be well protected from these problems, but none say they are spark proof. Connect the two clamps of this charger and prove it yourself; they really don’t spark.

My tip for people who have long and chiller winters is to keep it plugged into the lawnmower battery if you don’t want the battery to dry up upon not being used for a long time. This charger is even better as a maintainer. So, keep it plugged in and sleep peacefully.

The price is on the higher side, but this charger is worth the price for a long warranty and helpful customer care because it may save you from purchasing another one if it gives out before the warranty and lets you claim a replacement. You can call this product a mower battery maintainer because it’s really useful.

Pros

• A long warranty offered;
• Amazing customer service;
• Lightweight and compact;
• Safe and secure;
• Spark proof. 

Cons

• Price higher than other products in the market, not for budget people.

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6. 12 Volt-1.5 Amp Battery Charger by BatteryMINDer

• Model 1510 charger-maintainer;
• Ring terminal assembly with quick connector;
• Heated battery clip;
• Ambient temperature sensor (installed);
• 12-foot power cord;
• Optional permanent mount tab.

The MINDer 1510 Multistage charging calculation will keep your lawnmower battery at the top. Basically, leave the charger on during the coldest year of the year and your battery will be ready for the cutting season in late spring. Another fundamental power is the model, which wipes out the lead sulfate gems developed in a tempest.

 In the event that your battery isn’t holding a charge, this element might restore it and set aside your cash. When associated, the charger goes through a seven-stage cycle to test, fix, and condition your battery. The charger chooses the legitimate charging plan for your battery utilizing the inherent encompassing temperature sensor. You plug and go anyplace a fast charge to bring the power back up.

Pros

• A dead battery is being recovered;
• A 10-year warranty is included;
• Charger with a long cord;
• Charge four batteries at the same time.

Cons

• LED lights are small and difficult to see.

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FAQs

Thank you if you are still reading this article. It is often seen that the reader has some questions in his mind even after reading an article. To solve this problem, Frequent Ask Questions Cochrane Part is added to various articles. This article is no exception. This section discusses some of the frequent questions. We hope you find it useful. 

Can I Charge a Lawnmower Battery With a Car Charger?

Yes, you can do it. You just need to connect the jumper cables with your car battery charger. Remember this method only works with 12-volt batteries.

Will a Lawn Mower Run With a Dead Battery?

No, this is not possible. It’s better to charge your battery properly.

How Long Should a Lawnmower Battery Last?

If you choose the right battery it lasts long. Sometimes lawnmower batteries last more than 3 years. Even some last 5 years. If you want a long-lasting battery, pick the right one and use it properly. 

Why Does My Lawn Mower Battery Keep Going Dead?

Lawnmower batteries can die for a variety of reasons. Electrical short circuits are one of the reasons for them. The difference in voltage, Not using the right charger or not using the charger properly and one of the reasons is battery dead. Overcharge also the course of it. 

Conclusion

Hope this will help you to select the right charger for your lawn mower battery and you’ll be able to check and charge it properly.

But always remember, while buying a charger and charging the battery, you must follow the manufacturer’s instructions to avoid any unwanted accident or damage to yourself and the battery. If you want a hassle-free lawn mower battery charger then 6V/12V Automotive Battery Charger/Maintainer by BLACK+DECKER is a good choice. Or if you want the right charger for your acid battery then pick 12 Volt Junior Automatic Battery Charger by Battery Tender.

Lastly, if you need to replace your lawn mower, you can check a detailed list here.

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