The Best Lawn Mower Battery Charger [Reviews & Buying Guide]

For a lot of gardeners, discovering that the lawnmower requires a full charge isn’t uncommon and it often happens when we need it the most.

But, this doesn’t have to be the case; in fact, you needn’t sweat your blood when you have the best lawn mower battery charger in your yard.

In this way, you can easily recharge the batteries and resume shining up your garden and yard.

However, with such a wide array of battery chargers for lawn mowers today, it can be a real challenge to find the best charger for your machine.

Gardener putting battery into electric cordless lawn mower

This is why we made a thorough research and included the 10 best currently, as well as some extra info about the features that will make the product worth considering!

Top Pick

NOCO GENIUS1, 1A Smart Car Battery Charger, 6V and 12V Automotive...

Noco’s Genius 1 Battery Charger is our best pick because of the high customer satisfaction and the amazing features it has to offer, including versatility, enhanced performance, and safety.

Budget Pick

Foval Automatic Trickle Battery Charger 12V 1000mA Smart Battery...

Foval’s Automatic Trickle Charger for 12V batteries offers a lower price, but some pretty awesome features, including easy installation, optimized safety, and a lightweight, compact design.

Why Do I Need A Lawn Mower Battery Charger?

A viable alternative to gas-powered lawn mowers, the ones powered by batteries have come a long way.

Most of them are powered by lithium-ion batteries which are praised for their ability to be charged fast, high capacity, and putting out more power.

These are the advantages making it ideal for lawn mowers. Generally, the battery usually comes fully charged from the store and can keep going for two to four weeks without a charge.

If this isn’t the case, you’ll need to charge it yourself and this is where your battery charger steps in.

Moreover, whenever the battery runs out of charge, this device will help you refill it and continue working in the garden.

No matter how well you care for the battery, it will eventually lose its effect. But, before it does, and this can be a quite long time, you can recharge and maintain it with the proper charger. 

This charger is often versatile, i.e. it can also be used for other ride’s batteries, including jet skis, ATVs, motorcycles, and more.

Most Important Features Of Battery Chargers?

Similarly, to buy other stuff, we also need to consider the most important features of lawn mower battery chargers before we make a final verdict.

This is essential since there are a lot of poor-quality chargers on the market that are a waste of your money and time. Below, check out the things you should consider first:

  • Power/Charging Capacity

Before anything else, you need to check out and see if the power output of the charge is compatible with the battery of your mower or not.

Usually, the lawnmower batteries have a 6-12 voltage and 5Amp-25Amp amperage. When the charger’s level of charging is higher, recharging the battery will be faster. That is, if you use the mower on a regular basis, you may consider a charger with a bigger capacity, i.e. 6Amp or higher.

  • Indicators

Actually, a lot of users aren’t even aware of this feature when searching for a battery charger for their mower.

However, it’s quite useful. These indicators allow you to see what the capacity level is while it’s charging so you can plan your next step.

All of the models we presented have this feature, which is great!

  • Portability

If you need to carry the charger from place to place, a portable one seems like the best idea. And, it should be one with a generous cord length. Look for a charger with a compact design and lightweight.

This ensures you can use it optimally, without having it locked in one place!

  • Safety

Without a doubt, before you buy a battery charger, it’s essential to consider the safety features.

Make sure it’s equipped with overcharge protection, reverse polarity protection, and resistance to overheating.

When a battery charger is lacking these features, the battery can get damaged!

  • Matching with the battery

Before any other feature, most people check out the voltage of the charger because if it’s not matching with the battery, the charging won’t be proper.

And, the battery may also be damaged internally or the worst-case scenario may happen, i.e. it may burst out!

If the mower is manufactured after the 80s, it probably has a 12V battery so you’ll need a 12V charger too.

Otherwise, you can choose a charger that can switch between 12V and 6V.  These are highly versatile and ideal combo with any battery.

Still, they may have a higher price than other models.

  • The price

Although it’s an important factor, many people ignore it. But, we shouldn’t, especially if our budget is fixed.

When checking out branded products, spending some more may be required. However, this doesn’t mean you can’t find quality chargers at a more reasonable price.

And, Amazon is a great place to find a lot of discounts.

What Kind Of Battery Charger Do I Need For My Lawn Mower?

As we previously mentioned, if your mower is purchased after the 80s, your machine will need a 12V battery.

Thus, you’ll need a 12V charger too. But, if the mower uses a 6V battery, opt for chargers that allow you to charge both 6V and 12V.

How to Charge the Lawn Battery the Right Way?

Before you begin charging the battery, you need to put on protective clothes, eyewear, and gloves. When ready, unplug the charger from the outlet.

Then, locate the mower’s battery, which is usually under the seat of the machine.

Now, you connect the positive charging cable of the charger with the red terminal of the battery. After this step, the next one is to attach the negative side too.

Then, it remains to match the voltages of the mower and charger and plug the mower into the main electrical outlet of the charger.

Can I Use The Car Charger For The Lawn Mower Battery?

If your lawnmower battery is a lead-acid one, you can use your car charger for it. And, going with the jumper cables is the safest option.

On the other hand, if the battery of the mower is a lithium one, you can’t charge it with the charger for your car.

For this type of battery, you need a specially designed charger.

When Should I Replace The Old Battery Charger With A New One?

When the battery is empty, the charger is there to revive it by recharging it and making it useful again.

But, if the charger doesn’t work, filling the battery won’t be possible. When the battery isn’t properly charged, you won’t be getting the runtime expected from it.

If this occurs, make sure you check out the battery charger and find out if it’s time for its replacement with a new charger.

Here’s how you can do this:

  • Plug the charger into an electric outlet
  • Plug the test probes into a voltmeter
  • Connect the battery of the mower with the charger
  • Connect the battery’s positive end to the voltmeter’s red probe
  • Connect the negative side with the black probe of the voltmeter
  • Check the reading on the voltmeter
  • If it’s pointed towards the right, the battery is getting charged properly
  • If there’s no reading, the charger has to be replaced

Best Lawn Mower Battery Charger

1. Noco Genius 1-Amp Fully Automatic Battery Charger

Product Information

Package Dimensions3.43 x 4.02 x 6.73 inches
Item Weight15.2 ounces

Highlighted Features

  • Improved & compact design
  • Enhanced power
  • Integrated thermal sensor
  • Versatile
  • Easy to use

Boosting high customer satisfaction, this charger is similar to their G750 but enhanced. It’s made 35 percent more compact and offers 35 percent more power.

It’s the all-in-one solution; it helps you charge and maintain the battery, and also charge the trickle and desulfate the battery. It’s designed to be used for 6V and 12V lead-acid and lithium-ion batteries.

Thanks to the integrated thermal sensor, the device detects the temperature in the ambient and adjusts the charge to prevent overcharging in hotter climates, as well as undercharging in colder areas.

And, the amazing thing is that you can revive batteries as low as 1 volt. It detects sulfation and acid stratification automatically and prolongs the lifespan of the battery.

2. LST’s Trickle Lawn Mower Battery Charger

Product Information

Package Dimensions1.5 x 3.2 x 1.7 inches
Item Weight8.8 ounces

Highlighted Features

  • Inexpensive
  • Easy to use
  • Versatile
  • Good value for money
  • Durable

This charger can revive fully-drained 6V and 12V lead-acid batteries and it’s suitable for lawn mowers, lawn tractors, motorcycles, automobiles, scooters, snowmobiles, boats, and more.

It offers guaranteed safety and enables protection from reverse polarity, short circuits, overcharge, overload, and overheating.

Resistant to water and dust, it’s stable and reliable. Thanks to the detachable ring and alligator connectors with a 10A fuse, the charging, and maintenance of your batteries can be done anywhere you want.

The indicator shows you the stages of the charging and will automatically go to float mode after the battery has been fully charged. The input is 100-240V. This is definitely a compact and lightweight battery charger everyone needs!

3. Meearo Smart Lawn Mower Battery Charger

Product Information

Package Dimensions8.9 x 4.53 x 2.68 inches
Item Weight15.8 ounces

Highlighted Features

  • Easy to use
  • Versatile charger
  • Useful LCD
  • Lightweight
  • Safe

This 5Amp and 12V battery charger is amazing; it charges and maintains different types of AGM, GEL, SLA, Flooded, Calcium, Automotive or Marine, 4Ah-100Ah, 12V batteries.

Thanks to the fully automatic high-frequency charging, it automatically goes from fast charge to top-off and then to trickle charging.

What’s more, the built-in circuit protection helps avert overcharging, polarity, short circuits, and overheating.

You can track the charging progress on the LCD screen, including the inside temperature, summer or winter mode, the voltage of charging, and more.

The pulse repair function is great for repairing the weakest batteries and prolonging their lifespan. However, it can’t revive very damaged or dead batteries!

4. IEIK’s Automotive Smart Lawn Mower Battery Charger

Product Information

Package Dimensions8.8 x 4.6 x 2.6 inches
Item Weight14.4 ounces

Highlighted Features

  • Good value for money
  • Thick construction
  • Easy to use
  • Safety-optimized

This 5Amp and 12V smart battery charger will help you charge and maintain all AGM, GEL, SLA, Flooded, Calcium, Automotive, and Marine batteries.

It features three stages of charging, that is, fast, top-off, and trickle.

The design is pretty great; the circuit protection optimizes safety by averting problems like overheating, open and short circuits, sparks, polarity, and overcharging.

You can easily track the charging progress on the monitor, but also the summer or winter mode, the voltage of charging, and the inside temperature.

The charger features a function for battery maintenance, i.e. pulse repair. It can help you prolong battery life or repair weakened batteries.

5. Foval Automatic Trickle Mower Battery Charger

Product Information

Package Dimensions3.9 x 2.4 x 1.2 inches
Item Weight10.6 ounces

Highlighted Features

  • 4 charging modes
  • Optimized safety
  • Intuitive indicators
  • Smooth connection
  • Easy to use

This battery charger is suitable for all lead-acid, sealed, or flooded batteries. It features an 8-foot output cord and a two-year warranty.

The four-step charging program consists of a start, bulk charge, absorption mode, and float mode.

This compact charger will work with 12V batteries of lawn mowers, but cars, motorcycles, ATVs, boats, golf carts, and more.

Thanks to the user-friendly LED display, you can easily track the progress of the charging but also see other diagnostic information you may need.

Suitable for charging and maintaining your batteries, this charger is lightweight, automatic, and easy to use.

6. Ably Lawn Mower Battery Charger

Product Information

Package Dimensions9.06 x 5.24 x 2.64 inches
Item Weight1.5 pounds

Highlighted Features

  • Easy to use
  • Good value for the money
  • Great safety features
  • Versatile

This portable battery charger and maintainer is designed for 12V and 24V batteries and works with different types, including Flooded, VRPA, SLA, Calcium, AGM, etc. It can’t be used with lithium ones.

It’s suitable for lawn mowers, trucks, cars, motorcycles, golf carts, tricycles, and more.

It will automatically adjust the current of charging and maintainability in accordance with the temperature.

It detects it manually and helps keep it balanced both during summer and winter.

It will prolong the life of the batteries, repair the ones slightly damaged, and boost the engine start.

Thanks to its safety tech built-in, there’s no risk of polarity, overcharging, overheating, and sparks. Last but not least, the LCD screen is great for tracking the charging progress, but also other important info like the voltage, temperature, etc.

7. Black & Decker Lawn Mower Battery Charger

Product Information

Package Dimensions5 x 3 x 8.9 inches
Item Weight1 pound
ManufacturerBlack & Decker

Highlighted Features

  • Good charging power
  • Automatically switches off when finished
  • Optimized safety
  • Good cord length

Perfect for 12V and 6V batteries (GEL, WET, and AGM), this charger is easily connected with the battery thanks to the O-ring terminals and battery clips.

When the battery is full, the charger automatically ceases the process and switches to float mode.

What’s more, the safety of the charger is ensured thanks to the added protection from reverse polarity, overcharging, and short circuits.

You can conveniently place it where needed thanks to the mounting bracket that’s added to it. And, the low voltage compensation optimizes the performance when the charger is being used with an extension cord.

Customers who bought this charger praised it the most for being easy to use, its cord length, and the charging power.

8. Battery Tender’s Junior Battery Charger for Lawn Mower

Product Information

Package Dimensions8 x 4 x 9 inches
Item Weight1.8 pounds

Highlighted Features

  • Generous cord
  • Optimized safety
  • Versatile
  • Compact
  • Lightweight

Fully charge or maintain your machine’s battery with this battery charger. Once it charges, it goes into float mode and maintains proper voltage to prevent overcharging.

Thanks to the optimized safety, there’s a low risk of sparks and reverse polarity.

It features a 12-foot cord and the manufacturer gives an awesome 5-year warranty. Besides being great for lawn mowers, it’s also recommended for scooters, jet skis, ATVs, motorcycles, and more.

Designed compact and lightweight, you can take it with you on the go. It’s suitable for 12V lead-acid, flooded, or sealed, batteries (gel cell and AGM).

Since it comes with a 4-step charging program, it will keep the battery optimized at any time. You can track the progress via the LED indicator.

9. Hoyoa Lawn Mower Battery Charger & Maintainer

Product Information

Package Dimensions3.34 x 2.36 x 1.33 inches
Item Weight1.05 pounds

Highlighted Features

  • Long cord
  • Safety features
  • Comes with extras
  • Easy to use
  • Lightweight

Versatile and sturdy, this trickle charger will revive any 12V battery (gel, AGM, or lead-acid) on your lawn mowers, cars, motorcycles, jet skis, and more.

The device has four charging modes-when it’s fully charged, the LED indicator goes green and the charger goes into maintenance mode while the trickle ensures the battery is kept at full charge.

It comes with high-quality alligator clips and O-ring terminals.

The length of the cord is quite generous, around 10 feet, so you can easily use it anywhere.

With a 1 year warranty, it’s a product worth considering. Customers who bought this charger gave it the most kudos for its safety, ease of use, and good value for money.

10. Yonhan Smart Battery Charger & Maintainer

Product Information

Package Dimensions6 x 3.4 x 2.4 inches
Item Weight15.8 ounces

Highlighted Features

  • Safe
  • Thick
  • Easy to use
  • Versatile

This versatile charger can revive entirely drained 12V, Pb, SLA, GEL, AGM, VRPLA, sealed, lead-acid, wet, etc. batteries on your lawn mowers, but motorcycles, ATVs, RVs, boats, golf carts, and more.

It’s designed with a strong pulse repair tech that reverses the damaging effects when the batteries have been uncharged for a prolonged time; in this way, the battery’s longevity and performance improve.

It has 16-layer fin cooling aluminum sheets and fans that ensure optimal cooling.

The progress of the charging and other details can be easily tracked on the LCD indicator.

When you choose this charger, you know safety is guaranteed because it has been built to protect from reverse polarity, short circuits, overload, overheating, and sparks.

It’s designed with ABS flame-retardant material and high-temperature resistance.

Final Thoughts

With the best lawn mower battery charger, you don’t just boost the lifespan of the battery, but ensure you have an awesome mowing experience each time.

It brings back the battery to life and helps you keep doing your gardening worry-free!

This is something every gardener will certainly appreciate.

By checking out some of the most important features of a quality battery charger, you can easily pick out one for your machine and help it function optimally.

If budget isn’t an obstacle and you’re looking for a premium charger, you’ll appreciate our best pick, for sure.

On the other hand, if you don’t want to spend a small fortune, but still want something that charges effectively and lasts long; our budget pick is perfect for you!

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