Sun Joe Cordless Electric Push Lawn Mower MJ401C-PRO review

Have we ever wished our lawn looked freshly cut without spending an entire afternoon wrestling with a heavy, corded mower?

What Is the Sun Joe Cordless Electric Push Lawn Mower?

The Sun Joe Cordless Electric Push Lawn Mower with 10.6-Gal Bag, 14-Inch Cutting Width, Green – MJ401C-PRO is a compact, battery-powered mower designed for small to medium-sized lawns. It gives us the convenience of cordless operation, a precise 14-inch cutting path, and simple height adjustments for everyday gardening and yard maintenance.

Instead of dragging an extension cord or hauling out a gas mower, this unit runs on a 28 V 4.0 Ah lithium‑ion battery, making routine mowing quieter, cleaner, and generally more manageable for most home users.

Key Features at a Glance

Before we look at how it feels to use this mower in real life, it helps to see the main specifications side-by-side. This quick snapshot lets us understand what we are getting into and whether it fits our yard and lifestyle.

Feature	Details
Power Source	28 V 4.0 Ah rechargeable lithium‑ion battery
Cutting Width	14 inches
Approx. Area per Charge	Up to 2,150 sq. ft. (about 1/10 – 1/4 acre, depending on conditions)
Deck Material	Durable steel blade with plastic deck housing
Cutting Height Adjustment	3-position manual height adjustment
Grass Collection	Detachable 10.6-gallon (40 L) rear grass catcher bag
Discharge Options (Pro Version)	Includes rear discharge chute (MJ401E-DCA)
Mower Type	Cordless, electric, push mower
Intended Yard Size	Small to medium lawns
Warranty	2-year Snow Joe + Sun Joe Customer Promise
Color	Green

We can see that this mower focuses on practicality: cordless power, modest cutting width, and flexible clippings management. It is built to be an everyday tool rather than a heavy-duty commercial machine.

Design and Build Quality

The Sun Joe MJ401C-PRO has a compact, lightweight design that emphasizes maneuverability and storage convenience. Its body uses plastic for the main housing with a steel cutting blade underneath, striking a balance between durability and ease of handling.

Compared with large gas mowers, this unit feels significantly lighter and more agile. We can easily push it across the yard, lift it slightly over small bumps, and roll it into a shed or garage without struggling. The handle folds, which helps us store it in tight spaces like small garages, sheds, or even an apartment storage unit.

Materials and Construction

The mower’s steel blade gives us a clean, crisp cut that resists deformation better than cheap, thin blades on some low-cost electric mowers. The deck and wheels are primarily plastic, which keeps weight low and reduces rust concerns, especially when we store it in a damp shed or near a humid coastal area.

We should not expect the ruggedness of a commercial gas mower, but for regular residential use on small to medium lawns, the construction feels appropriate. As long as we avoid hitting large rocks or using it on rough, root-filled ground, it should stand up well to routine mowing.

Ergonomics and User Comfort

The handlebar height works well for most adults, and the push effort is modest because of the mower’s light weight. Unlike self-propelled models, there is no powered drive for the wheels, so we do provide the pushing force ourselves. For level or gently sloped yards, this is usually manageable, but for steep hills, we should be prepared for more effort.

Noise levels are lower than those of gas mowers. We still hear the blade whirring, but the absence of an engine roar makes the experience less fatiguing for us and less disruptive for neighbors. It is realistic to mow early in the morning or later in the evening without causing much annoyance.

Cutting Performance

Ultimately, what matters is how well the mower cuts our grass. The Sun Joe cordless mower is designed for precision over brute strength, and that is reflected in how it performs on typical residential lawns.

The 14-inch steel blade cuts a relatively narrow path compared with big 20–21 inch gas mowers, but that narrower width makes the unit easier to weave around landscaping, trees, and tight corners. On smaller yards, the width feels appropriate and actually makes the work more controlled and less clumsy.

Quality of the Cut

On average-height, regularly maintained lawns, the cut is clean and even. The blade spins fast enough to slice instead of tearing, which helps our lawn look neat and promotes healthier grass. When we mow on a reasonable schedule and avoid letting the grass get wildly overgrown, the finish looks tidy and professional.

If we try to tackle overly tall, dense, wet, or neglected grass, we may notice:

• The mower slowing slightly as it works through thick patches
• Occasional clumping or buildup under the deck
• The need to go over certain areas twice for an ideal finish

This is not unusual for compact electric mowers. For tall or tough grass, we may want to raise the cutting height, make a couple of passes, or mow more frequently to keep resistance low.

Area Coverage per Charge

Sun Joe states we can mow up to 2,150 square feet per charge, and under ideal conditions up to around a quarter acre. Our real-world results will depend on:

• Grass thickness and type
• Terrain (flat vs sloped)
• Cutting height setting
• How often we mow (short vs tall grass each time)

For many small suburban lawns, one full charge is enough to finish the job. For lawns closer to a quarter acre, we might need to move at a steady pace and avoid letting the grass get too tall between mowings, or we may want a second battery for uninterrupted mowing.

Battery and Charging Experience

The battery system is one of the core reasons we would choose this mower over a gas or corded model. We get cordless freedom without any fumes, pull-starts, or trips for gasoline.

Battery Specs and Runtime

The 28 V 4.0 Ah lithium‑ion battery offers enough capacity for typical small-lawn sessions. Lithium-ion technology means:

• No memory effect
• Better energy density than older battery chemistries
• Stable power output until the charge runs low

We can realistically expect the battery to last through most small yards when the grass is moderately maintained. On thicker or taller lawns, runtime naturally drops, so we may need to be strategic with how we mow or consider an extra battery if our yard regularly pushes the battery to its limits.

Charging Process

The charging process is straightforward:

1. Remove the battery from the mower.
2. Plug it into the included charger.
3. Wait until the indicator shows full charge.

We should factor the charge time into our overall lawn care routine. While exact charge times can vary, lithium-ion systems like this typically take a couple of hours to fully recharge from empty. Planning ahead (for instance, charging right after finishing a mow) makes it easier to always have it ready.

We also want to store the battery properly during off-seasons—ideally in a cool, dry place and not drained to absolute zero. That helps prolong its lifespan and preserve performance year after year.

Cutting Height Adjustment and Deck Settings

One of the important features for a lawn mower is the flexibility to change cutting height. Grass types, seasons, and weather conditions all influence how short we should cut.

3-Position Manual Height Adjustment

The Sun Joe MJ401C-PRO gives us three manual cutting height positions. While not as granular as some premium models with 5–7 positions, it does cover the key ranges most homeowners use:

• A lower setting for a shorter, manicured look on suitable grasses
• A mid setting for everyday mowing
• A higher setting for slightly longer grass or when conditions are hot and dry

Adjusting the deck height is a manual process rather than a single lever controlling all four wheels. That means it can take a bit more time and effort compared with the quickest high-end systems, but for most home users we do not change heights constantly, so it is manageable.

Practical Use of Different Heights

Using the height adjustment strategically helps our lawn stay healthier:

• Use higher settings during hot summer months to protect grass roots and retain moisture.
• Choose mid settings for general weekly or bi-weekly mowing during moderate weather.
• Reserve the lowest setting for special occasions or when we want a very short cut, making sure the grass is not already stressed by drought or heat.

Learning how our lawn responds to each setting is a simple way to get the most out of this mower and keep our yard looking consistently good.

Grass Collection and Clippings Management

Not everyone wants to bag clippings, but when we do, we want it to be easy and efficient. The MJ401C-PRO gives us options for handling grass clippings based on our preferences and yard conditions.

10.6-Gallon Grass Catcher Bag

The 10.6-gallon (40 L) rear grass catcher is detachable and designed for quick emptying:

• It attaches at the back to collect clippings as we mow.
• Once full, we lift it off, empty the contents into a compost bin, yard waste bag, or pile, and reattach it.

The capacity is well-suited to smaller lawns. We will still need to empty it a few times during a mowing session, but the bag size keeps the mower light and helps maintain good maneuverability.

Collecting clippings keeps our yard tidier and prevents thick clumps from sitting on the lawn. If we use a municipal green waste program or compost at home, this bag makes the process straightforward.

Rear Discharge Chute (Pro Version Advantage)

A key difference in the Pro version (MJ401C-PRO) is the included rear discharge chute (MJ401E-DCA). This attachment allows clippings to exit out the back and fall directly onto the lawn instead of being caught in the bag.

This is helpful when:

• We want faster mowing without stopping to empty a bag.
• We are okay with clippings on the lawn, which can actually return nutrients to the soil.
• The grass is not terribly thick or wet, so clippings do not form heavy clumps.

Having both bagging and discharge options gives us flexibility. We can bag on weeks when we want a very clean look, and then switch to discharge when speed and simplicity are the priority.

Ease of Use and Everyday Handling

A mower can have good specs yet still feel awkward if it is not easy to live with. With the Sun Joe cordless mower, most of the daily interactions feel unintimidating, even for those of us who are not mechanically inclined.

Starting and Stopping

Instead of a pull-start cord, this mower uses a simple electric start system:

1. Make sure the battery is properly seated.
2. Engage the safety features (such as a key or safety button, depending on configuration).
3. Pull or push the handle control to start the blade.

Stopping is just as simple—we release the control bar, and the blade spins down. This is a huge advantage for anyone who has struggled with stubborn gas engines, especially after they sit idle for months.

Maneuverability Around Obstacles

The relatively small 14-inch deck and lightweight build allow us to:

• Mow around trees and shrubs more easily
• Navigate narrow passages between flower beds or fences
• Turn quickly at the end of rows without awkward multi-point turns

For yards full of landscaping features, decorative borders, or curved edges, a smaller mower is often more practical than a wide one. It may take slightly more passes, but each pass is easier to control, and we are less likely to bump into things.

Maintenance and Care

One of the biggest appeals of cordless electric mowers is the reduced maintenance. While no mower is completely maintenance-free, this Sun Joe model keeps our to-do list relatively short.

Routine Care

To keep the mower running smoothly, we should:

• Clean the deck: After mowing, especially in damp conditions, brush or wipe away grass clippings from the underside of the deck and from around the wheels. This helps prevent buildup and maintains performance.
• Check and sharpen the blade periodically: A sharp blade cuts cleaner and reduces strain on the motor. Depending on how often we mow and the type of grass, sharpening once or twice per season is often sufficient.
• Inspect the wheels and fasteners: Give everything a quick look to ensure nothing is loose or worn.

Because it is electric, we do not have to worry about:

• Oil changes
• Spark plugs
• Fuel stabilizer
• Carburetor issues

That makes ownership much simpler, especially if we are not fans of small engine maintenance.

Battery Care and Storage

To prolong battery life:

• Avoid fully draining the battery to zero if we can.
• Store it in a cool, dry place—not in direct sunlight or extreme cold.
• During the off-season, check the charge occasionally and top it up if it gets low.

Proper battery care helps preserve both runtime and overall lifespan, which in turn keeps our mowing routine reliable for several seasons.

Ideal Yard Types and Use Cases

Not every mower fits every yard, so we should consider how this model lines up with common home scenarios.

Best for Small to Medium, Fairly Level Lawns

This mower shines when:

• Our yard is small to medium in size—typical suburban front and back lawns.
• The terrain is mostly flat or gently sloped.
• We keep up with regular mowing so the grass is not excessively tall or thick.

In those conditions, the battery runtime, cutting width, and power feel balanced and sufficient. We enjoy cordless freedom without feeling like we are pushing the mower beyond its intended duty.

Less Ideal for Large or Very Challenging Yards

We may run into limitations if:

• Our property is significantly larger than a quarter acre.
• We have steep hills or very uneven terrain.
• We frequently let grass grow tall and dense or deal with heavy weeds.

The mower can still operate, but we might find we need multiple battery cycles, more passes, or more frequent mowing to keep the workload manageable. If our yard is more demanding, we might consider a higher‑powered or wider mower, or plan around the limitations of a single battery charge.

Environmental and Neighbor-Friendly Benefits

One of the advantages of going cordless and electric is the overall environmental and comfort benefits. These factors may or may not be our main motivators, but they are worth highlighting.

Reduced Emissions and Fumes

Because the Sun Joe MJ401C-PRO runs on battery power, we avoid:

• Gasoline spills
• Tailpipe emissions from a small engine
• Fumes that linger while we mow

This is more pleasant for us, and also better for kids, pets, and neighbors nearby. Over time, replacing gas equipment with electric alternatives can make a noticeable difference in air quality around our home.

Lower Noise Levels

Noise is another underrated benefit. While the mower is not silent, it is significantly quieter than a gas mower. We can:

• Mow earlier or later in the day with less risk of bothering anyone
• Hold short conversations nearby without shouting
• Reduce overall noise pollution in our neighborhood

If we live in a densely packed area or have noise-sensitive neighbors, this aspect alone might be reason enough to prefer an electric mower.

Warranty and Customer Support

When we invest in yard equipment, it is reassuring to know we have support if something goes wrong. Sun Joe backs this mower with a strong warranty and clear promise.

Two-Year Snow Joe + Sun Joe Customer Promise

The 2-year warranty on powered products covers this mower from the date of purchase. According to the brand’s stated policy, coverage is straightforward:

• “No questions asked” support within that warranty window
• Direct contact with Snow Joe for warranty claims or assistance

This type of backing gives us more confidence in the product. If we encounter a defect or issue that is not our fault, we have a clear path to get help without wrestling with complicated warranty rules.

Accessing Support

If we need support, we reach out to Snow Joe using the contact information provided with our mower or through their official website. Keeping our proof of purchase handy (receipt or order confirmation) usually makes the process quicker.

Good support does not necessarily mean we will never have a problem, but it does mean we are less likely to be stuck with equipment we cannot use.

Pros and Cons Summary

To make our decision easier, it helps to weigh the strengths against the limitations. We can think of it like a quick reference checklist before buying.

What We Are Likely to Appreciate

• Cordless convenience: No extension cords to manage, and no gas to store or mix.
• Compact and lightweight design: Easier to push, maneuver, and store than many gas models.
• Decent cutting performance for small to medium lawns: The 14-inch steel blade offers a crisp cut.
• Simple 3-position height adjustment: Enough versatility for everyday mowing needs.
• Flexible clippings management: Bagging with the 10.6-gallon catcher or rear discharge chute (Pro version).
• Lower noise and zero emissions at point of use: Neighbors and our lungs both benefit.
• Straightforward starting: No pull cord or carburetor frustration—just electric power.
• Two-year “no questions asked” warranty: Extra peace of mind from Snow Joe and Sun Joe.

What We Should Keep in Mind

• Limited cutting width (14 inches): Narrow compared with full-size mowers, so larger yards take more passes.
• Runtime tied to a single 28 V 4.0 Ah battery: Very large or dense lawns may need a second battery or recharging break.
• Manual push, not self-propelled: On hills or uneven ground, pushing effort is all on us.
• Three height positions only: Fewer height options than some higher-end models.
• Best suited for small to medium yards: Heavy-duty or expansive properties may stretch its capabilities.

By framing the pros and cons in terms of our own yard and preferences, we get a clearer sense of whether this mower is a good match.

How This Mower Fits into Our Overall Lawn Care Routine

Choosing a mower is only one piece of maintaining a healthy, attractive lawn. The Sun Joe MJ401C-PRO can become a central tool, but it works best when combined with smart habits and a few complementary tools.

Mowing Frequency and Schedule

To make the most of this mower:

• Aim to mow consistently, often once a week during peak growing season.
• Try not to remove more than one-third of the grass blade height in a single session.
• Adjust the cutting height based on season and weather, using the higher setting in hot, dry conditions.

Regular, moderate mowing helps the mower perform well and keeps our lawn healthier and more resilient.

Pairing with Other Tools

We may also want to pair this mower with:

• A string trimmer or edger for areas the mower cannot reach, such as around posts, fencing, or narrow spaces.
• A leaf blower or rake for seasonal cleanup.
• Simple lawn care products like fertilizer or weed control, used according to our lawn’s needs.

With a basic set of tools, our Sun Joe mower can anchor a low-maintenance yet effective lawn care routine.

Who Should Seriously Consider the Sun Joe MJ401C-PRO?

This mower is not trying to be everything to everyone. It clearly targets homeowners with a particular set of needs and preferences. If we recognize ourselves in this description, it is probably worth strong consideration.

We are likely an ideal match if:

• Our yard is small to medium and mainly flat.
• We prefer cordless electric tools and want to avoid gas, fumes, and engine maintenance.
• We value ease of use and are not interested in tinkering with engines.
• We want a mower that is easy to store, especially in limited space.
• We appreciate having both bagging and discharge options for managing clippings.
• We like the security of a two-year, no-questions-asked warranty.

On the other hand, if we have a sprawling lawn, steep slopes, and heavy, thick grass that often gets overgrown, we might outgrow this mower’s power and runtime. In that case, we would either need to mow more frequently, plan for multiple charge cycles, or consider a larger and more robust model.

Final Thoughts on the Sun Joe Cordless Electric Push Lawn Mower

When we put everything together, the Sun Joe Cordless Electric Push Lawn Mower with 10.6-Gal Bag, 14-Inch Cutting Width, Green – MJ401C-PRO stands out as a friendly, practical solution for everyday homeowners with modest-sized lawns. It trades the noise, fumes, and maintenance demands of gas mowers for a cleaner, quieter, and easier mowing experience.

We get:

• A compact, maneuverable mower that fits smaller spaces and moves easily around obstacles.
• A rechargeable 28 V 4.0 Ah battery system that supports up to around 2,150 square feet per charge under typical conditions.
• Simple height settings and a steel blade that produce a neat, even cut when we maintain a reasonable mowing schedule.
• Flexible grass handling with both a 10.6-gallon catcher bag and a rear discharge chute included in the Pro package.
• The backing of a two-year warranty that lets us use it with confidence.

If our goal is a neat, well-kept yard without turning lawn care into a complicated mechanical project, this mower fits that role well. It is not built for extreme acreage or heavy commercial tasks, but for most of us with small to medium lawns, it offers a very approachable way to keep our grass under control and our yard looking good week after week.

Disclosure: As an Amazon Associate, I earn from qualifying purchases.