Lawn Mower Battery Charger

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Using the right lawn mower battery charger can increase the lifespan of your battery and ensure a fantastic mowing experience.

If you are shopping for an ideal and easy-to-use lawn mower battery charger, we have reviewed top-rated mower battery chargers to help you get the ideal one for your mowing machine.

Top 3 Lawn Mower Battery Chargers

Editor's choice
DieHard 71219 6/12V Shelf Smart Battery Charger and 2A Maintainer
DieHard 71219 6/12V Shelf Smart Battery Charger and 2A Maintainer
  • Lightweight and easy to use.
  • Offers an outstanding value for your money.
  • Float mode monitoring keeps the battery at a normal voltage.
Best Budget
Foval Automatic Trickle Battery Charger
Foval Automatic Trickle Battery Charger
  • Suitable for all sealed, flooded or lead-acid maintenance-free batteries.
  • Easy to install.
  • Lightweight and easy to use.
Highest Rated
BLACK + DECKER BM3B Fully Automatic 6V/12V Battery Charger
BLACK + DECKER BM3B Fully Automatic 6V/12V Battery Charger
  • Built-in mounting bracket ensures convenient placement.
  • Easy to use.
  • Perfect for charging 6V or 12V WET, AGM, GEL batteries.

Lawn Mower Battery Charger: 8 Best Picks

1. DieHard 71219 6/12V Shelf Smart Battery Charger and 2A Maintainer

The lawn mower battery charger comes with a LED indicator that can flash if the charger does not operate or if clamps are reversed.

Its 5-stage charging process ensures precise charging and monitoring of batteries.

Pros:

  • The LED indicator lights enhance battery monitoring and precise charging.
  • It has reverse hookup protection which enables you to charge the battery more safely.
  • The mower battery charger is lightweight and easy to use.

Cons

  • Its projection light did not last long.

The charger’s float mode monitoring ensures that the connected batteries stay at a normal voltage to make sure that the battery charge is maintained.

Its wires and connectors are of high quality. It is equipped with features such as 12 volts accessory plug, 50A battery clamps and even permanent ring connectors.

2. BLACK + DECKER BM3B Fully Automatic 6V/12V Battery Charger

The riding lawn mower battery charger comes with built-in circuit protection that guards against short circuits, reverse polarity and overcharging. 

Its built-in mounting bracket ensures easy placement. The charger automatically stops charging when your mower battery is topped off or fully charged. 

Pros:

  • The BLACK + DECKER BM3B charger is easy to use and assemble.
  • It has a durable and sturdy construction.
  • The mounting bracket is built into the charger to ensure easy placement.

Cons

  • A user complained about poor quality solder.

It then switches to float mode monitoring. When used with an extension cord, the AC low voltage compensation provides maximum performance. 

The Black + Decker battery charger comes with two LED indicators; a green LED to show charging status and a red one to indicate a fault.

3. BMK 12V 5A Smart Battery Charger

The BMK 12V 5A model features a LED indicator that can display different charging statuses of the charger. It is ideal for charging 15-100Ah batteries.

Pros:

  • The smart battery charger is easy to use and install.
  • It is spark proof and lightweight
  • The BMK 12V 5A charger can detect defective batteries before it starts charging.

Cons

  • It has a short cord.
  • Some users complained that the battery didn’t last long.

It is a perfect AGM, SLA, GEL, VRLA or Pb battery. The 12 volt lawn mower battery charger can stop automatically when the battery is fully charged.

4. 5 Amp 12V Automotive Smart Battery Charger

The battery charger is equipped with LCD screen displays that are used to check the charging and battery status. 

Its built-in cooling fan is located at the bottom of the charger to ensure a superb heat dissipation effect.

Pros:

  • The 5 Amp 12V automotive charger comes with a built-in cooling fan that enhances a good heat dissipation effect.
  • It protects your battery from overcharging and reverse polarity thanks to circuit protection guards.
  • The LCD screen displays enable you to check the charging and battery status with ease.
  • It is lightweight and easy to use.

Cons

  • A user commented that the battery charger did not last long.
  • It has short cords.

The ABS flame-retardant shell is solid, durable and resistant to corrosion and high temperature. 

It is capable of charging SLA, GEL, AGM and calcium-type batteries. Its circuit protection protects the battery from reverse polarity and overcharging.

5. LST Trickle Battery Charger Automatic Maintainer 6V 12V Smart Float Charger

The smart float charger is capable of charging fully drained 6V and 12V gel/sla/pb/agm/lead-acid batteries. 

It offers protection against short circuits, reverse polarity, over-discharge/charge, and over current/voltage.

Pros:

  • The battery charger is lightweight and easy to use.
  • It offers protection against short circuits, reverse polarity, over-discharge/charge, and over current/voltage.
  • The LST trickle battery charger is easy to install.

Cons

  • A user complained about poor alligator clips.
  • A user commented that the plastic handles on the terminal clamps fell apart.

The LST mower battery charger comes with a LED indicator that provides visual feedback on your battery’s diagnostic information. It is compact, lightweight and easy to use.

6. Foval Automatic Trickle Battery Charger

The Foval battery charger comes with intuitive LED indicators that offer visual state-of-charge feedback and diagnostic information. 

It is ideal for all flooded, lead-acid and sealed maintenance-free batteries.

Pros:

  • The battery charger protects the battery from overheating.
  • It is easy to use
  • The smart battery charger is lightweight and fully automatic.

Cons

  • A user complained about the design of the LED indicators.
  • A user commented that it charges slowly.

The lawn mower battery charger is lightweight, easy to use and fully automatic. It is spark proof and protects the battery from overheating.

7. ULTRAPOWER 4Amp 12.8V-14.6V Lithium LifePO4 Battery Charger

The Ultrapower battery charger protects the battery from overvoltage, short circuit, reverse polarity and overload.

It saves automatic charging time and offers maximum battery life and performance. The charger is ideal for LifePO4 and 12V lithium batteries.

Pros:

  • The battery charge can protect the battery from short circuits, overload, overcurrent and reverse polarity.
  • It comes with four LED charging indicator lights that give you visual feedback on the battery’s charging status.
  • The battery is easy to use.

Cons

  • Some users complained that the charger gets hot while using it.
  • A user commented about broken charging clips.

Apart from lawn mowers, the battery charger is also compatible with lawn tractors, motorcycles, boats, trucks and cars.

8. [2-Pack] LEICESTERCN 12V Battery Trickle Charger

The riding lawn mower battery charger features an intuitive LED indicator that offers visual state-of-charge feedback and diagnostic information. 

Some users liked the charger for its ease of use and installation.

Pros:

  • The battery charger is easy to use and install.
  • Its alligator clips ensure an alternate connection.
  • The LEICESTERCN battery charger offers protection against short circuits, overheating, overload, and reverse polarity.

Cons

  • A user complained about overtightened case screws.

It protects the battery against short circuits, overheating, overload, and reverse polarity. 

The charger is capable of showcasing high reliability and stable performance. Its MCU-controlled feature ensures that the right level of power is sent to the battery.

Final Verdict

If you are looking for a lightweight and easy-to-use lawn mower charger for your mower, the DieHard 71219 6/12V shelf smart battery charger is our top pick.

It comes with a LED indicator that can flash if the charger does not operate or if clamps are reversed.

The charger’s float mode monitoring ensures that the connected batteries stay at a normal voltage to make sure that the battery charge is maintained.

Its 5-stage charging process ensures precise charging and monitoring of batteries. The wires and connectors are of high quality.

Editor's choice
DieHard 71219 6/12V Shelf Smart Battery Charger and 2A Maintainer
  • Lightweight and easy to use.
  • Offers an outstanding value for your money.
  • Float mode monitoring keeps the battery at a normal voltage.

When Should You Replace Your Lawn Mower Battery Charger?

It is advisable to replace your lawn mower battery charger when it is faulty. 

You need to test the battery charger to know whether it is faulty or not. Simply plug the charger into the electric outlet. Take your voltmeter and plug the test probes into the voltmeter.

After that, make sure that you connect your battery to the charger. Take the battery and connect the positive end of the battery to the red probe of the voltmeter.

Furthermore, connect the black probe to the voltmeter. You can now inspect the voltmeter’s reading.

If you notice that the voltmeter’s pointer moves to the right side, it means that the battery is receiving the proper charge.

If the voltmeter does not show any reading, it means that the battery charger is faulty and it requires that you replace it.

Factors To Consider Before Buying a Lawn Mower Battery Charger

Here are some factors to consider before buying a lawn mower battery charger:

Safety

It is important to consider the safety of the battery charger before getting one. 

Ensure that you check for safety qualities such as reverse polarity protection, overcharge protection and overheat resistance.

Power

You need to check whether the power output of the charger is compatible with your battery or not.

Generally, the batteries of a lawn mower have a voltage of 6-12V and an amperage that ranges from 5Amp-25Amp.

Portability

This is also an important factor to consider before getting a battery charger for your mower. 

Ensure that you get a portable charger that is compact and lightweight to enable you to carry it from one place to another.

Indicators

It is advisable to buy a battery charger that comes with indicators. This will give you an idea about the capacity of the battery while charging.

Frequently Asked Questions

What type of battery charger does my lawn mower battery require?

A: It depends on your mower battery. You can get a 6V charger for a 6V battery and then a 12V charger for a 12V battery.

How do you charge a lawn mower battery over winter?

A: It is not advisable to charge your mower battery in the winter.

Ensure that you take the battery out and store it in a dry and cool place during the winter season.

How long does it take to charge your lawn mower’s battery?

A: The duration to fully charge your mower battery depends on the amount of charge left in the battery.

It may take up to 8 to 12 hours to fully recharge it if the battery is completely drained.

Is it possible to charge a lawn mower battery with a car charger?

A: You can use a car’s charger to charge your mower battery if the mower uses a lead-acid type of battery.