Many renters and homeowners, need a lawn mowing machine to maintain their lawns. However, unless you are living in a subtropical or tropical climate, you are likely to stop mowing for some months to allow the grass to regenerate. In doing so, you are risking a dead battery over the winter months of being idle.
Even though lawnmower batteries effectively hold a charge, they can drain over time if you don’t use them. With a mower battery charger, when the grass starts to grow, you can be sure the mower will be ready to use. Thus the question is, which battery charger would be best for me? Luckily, I have tested a handful over the past few months and have the results and my reviews for you here.
Reviews of the Best Lawn Mower Battery Chargers of 2022
Although the market is flooded with lawn mower battery chargers and knowing the right one may be challenging, below are the top-rated battery chargers that may suit your needs.
Battery Tender Junior Review
- EXTEND BATTERY LIFE: Compatible with all 12V lead-acid, flooded, AGM,...
- INCLUDES: 12V, 750mA battery charger, fused ring terminal and...
- EASY TO USE: Low maintenance design is quick and easy to use, this...
- MONITOR POWER LEVELS: Solid-state two-color LED light indicates the...
The Battery Tender Junior fully charges the mower battery before it automatically changes to the float mode, which helps to maintain correct voltage without overcharging, enhancing safe long-term storage. It does not generate sparks when connecting the cables, which guarantees maximum safety even in the presence of gasoline.
Reverse polarity protection also helps improve security, even for inexperienced users who may confuse polarity. It has a low-maintenance construction that makes it sturdy, durable, and reliable for use in harsh conditions. Plus, its 1.8 pounds compact and lightweight form factor makes it incredibly portable.
It is compatible with both sealed and flooded lead-acid batteries, making it ideal for long-term storage use. The 4-stage full charge program that includes bulk charge, float mode, and initialization optimizes battery performance without overcharging.
It comes with an advanced LED indicator light that shows charging status. If the battery voltage reduces too low under load, ISM Adaptive Charging takes over the charger’s output power in full. Finally, the auto-charge cycle function switches to the floating mode when the battery is fully charged.
LST Trickle Battery Charger Review
- √ Battery and Vehicle Type...
- √ Safety Guarantee - Multi protection against Reverse Polarity,...
- √ 5-Stage Automatic Charging - Featured detachable ring or alligator...
- √ Intuitive LED Indicator - LST 6/12 volt automotive battery...
- √ 100% Satisfactory Float Charger - Updated with defective battery...
The LST Trickle Charger lawn mower battery maintainer is capable of charging the lawnmower’s 6V and 12V battery fully. This charger is automatic and can charge cars, motorcycles, automobiles, lawn mowers, RVs, ATVs, scooters, watercraft, and boat batteries.
For one, this capability makes it an excellent and versatile option for any homeowner who owns a lawn mower and similar machines. It has various protection functions against short circuits, overvoltage, overcurrent, overload, discharge, reverse polarity, and overheating. Typically, this protection translates to safety even for inexperienced mower users who might make mistakes during the charging process.
It also does not generate sparks when the cable is connected, which can minimize the risk of fire or injury. As a dust and water-resistant battery charger, it is sturdy and suitable for use in dusty and harsh environments. It features removable 10A locking ring connectors for easy battery charging and maintenance on the go. It also intelligently switches to the floating mode when the battery is fully charged. This helps to restore batteries more efficiently and extends battery life.
The intuitive LED display provides visual feedback on charge information and diagnostic status, even in service mode. Thanks to the lightweight and ultra-compact design of 0.55 pounds, you can take this lawn mower charger with you wherever you go. It is equipped with faulty battery detection and 72-hour security features, making it a great device for charging lawn mower batteries with greater confidence.
Noco Genius2 Automatic Smart Charger Review
- Meet the GENIUS2 - Similar to our G1100, just better. It's 30% smaller...
- Do more with Genius - Designed for 6-volt and 12-volt lead-acid...
- Enjoy precision charging - An integrated thermal sensor detects the...
- Charge dead batteries - Charges batteries as low as 1-volt. Or use the...
- Restore your battery - Automatically detects battery sulfation and...
The Noco Genius2 smart charger is an automatic charger designed for 6V and 12V batteries. This charger lets you enjoy accurate charging with the built-in thermal detector that senses surrounding temperature and correspondingly changes the charging process, preventing overload in hot weather and undercharge in cold weather.
Also, this smart charger can completely discharge batteries up to 1 volt. Plus, it has a new power mode that lets you gain control over the process and manually charge a completely discharged battery from zero volts.
It automatically detects battery sulphation and acid build-up to restore battery power that has been lost for more efficient engine starting and long battery life. Besides maintenance, it’s not only a lawn mower battery charger but also an advanced battery managing device.
Lawn Mower Battery Charger Buyers Guide
The following procedure explains how to charge the lawn mower battery.
When to Charge the Lawn Mower Battery
You can operate your lawn mower for a period of time without charging it. However, it is often necessary to connect the battery to the charger to make sure it is fully charged. Here are some cases where you may be required to recharge your lawn mower battery.
- Before you initially start the mower during the early spring
- Before you store the lawn mower in the months of cold winter
- Before starting to mow, if for any reason the battery is dead unexpectedly
You probably don’t need to charge your lawn mower battery regularly. Instead, you are only required to plug in the charger when the battery isn’t responding or when you want to start up or store it.
The Advantage of Using a Battery Charger over Other Methods of Battery Charging
The charger develops a two-way communication with the battery being charged, and when it reaches a certain charge level, it minimizes the input current and smoothly charges the battery until it is fully charged.
Typically, this prevents excessive heating of the battery and the production of chemicals that can destroy battery cells and reduce battery lifespan. The charger also regulates the input current for the first charge and also makes sure that the battery being charged doesn’t overheat or charge too fast.
What to Check in a Lawn Mower Battery Charger
Before charging your mowing machine’s battery, you need to know how far the chargers have been advanced. In the past, the technology the chargers featured wouldn’t prevent battery overcharging. For instance, releasing harmful gases from the overcharged battery was the order of the day every time you leave the charger connected to the battery.
However, this is not a problem anymore. Today’s chargers have an integrated system to avoid overcharging. So you can probably plug in a charger and easily forget that there was a charging battery. When you come back after several hours, you don’t have to be worried about harmful gases that can harm you or pollute the environment.
When you invest in an advanced charger for recharging a lawn mower battery, you probably don’t have to be worried about some of the health risks associated with older chargers. Nevertheless, it still depends on the model you choose. Some models come with different innovative features such as:
- Many mode settings such as jumpstart, fast charge, and slow charge
- Protection against wrong connections hook-up failsafe.
- Automatic shutdown
- Built-in charging timer
- Clamps for a wide variety of connections
- Floating modes for enhanced charging
- Energy consumption control
However, you should know that on the market, not all chargers offer all the features above. If you want to extend your lawnmower’s battery life, you should invest in a charger with several of these options.
Note that some chargers do allow switching between a 6-volt and a 12-volt configuration. In that case, be sure to select the settings that are similar to the battery’s voltage. You can also use a 10 amp or less charger to charge the lawn mower battery. Using a more powerful output can damage the mower battery.
Remember that before charging the lawn mower battery, it is not necessary to remove it. Instead, you should leave the battery in its place. If you do not know how charging your lawn mower battery is done, follow the below step-by-step procedure and guidelines.
How To Charge A Lawn Mower Battery Without Removing It
Total Time: 90 minutes
Take out the Battery
Using a pair of pliers, disconnect the connecting points from the head and remove the battery. If you secure the batteries with a screw, use the correct bolt wrench to remove them.
Ventilate the Area Around The Charger
Although modern chargers can detect a full battery and stop further charging, there are still chances of harmful gases being released into the environment. Select an area that is properly ventilated in order to charge the battery, as harmful gases can be released into the air. To prevent an explosion from occurring, remove all ignition sources as a precautionary measure.
Connect the Battery Terminals to the Lawn Mower Battery Charger
For this, the positive terminal (+) must be connected to the red pole and the negative one (-) to the black pole. Once this is done, you can safely plug the charger into an electrical outlet to start the charging procedure. Monitor the lighting system or the LED display screen that will notify you when the battery is fully charged.
Unplug the Battery Charger
When the battery is fully charged, disconnect it from the battery and place it the other way round.
Estimated Cost: 50 USD
- Battery Charger
- Bolt wrench
Sometimes homeowners find it difficult to recharge the mower battery after long periods of storage in cold winters. If you don’t have a charger and the mower battery requires charging, you can use other techniques such as using a jumper cable.
Keep in mind that the other techniques are not safe and can even damage your mower battery. In this regard, purchasing a battery charging kit is highly recommendable as it is the safest. Although choosing the best lawn mower charger might be confusing, you can’t go wrong with any of the chargers from the above list.