MightyMow
MightyMow 2x20V Self-Propelled Lawn Mower: Cordless 18" Cutting
The MightyMow 2x20V is a cordless electric lawn mower with a brushless motor and rear-wheel drive self-propulsion, giving it a meaningful edge over push-only models for users dealing with gentle slopes or uneven ground. The dual 4.0Ah battery setup and variable speed control make it approachable and easy to operate, though the 30-minute combined runtime keeps it best suited for small-to-medium yards under half an acre.
It's a solid low-maintenance pick for suburbanites who want to ditch gas without sacrificing convenience.
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Last updated: . Based on our analysis of 364 lawn mowers.
What Sets It Apart
Key specification highlights based on our analysis.
Rear-Wheel Drive
Better traction on hills and slopes vs front-wheel drive
Variable Speed Control
Adjustable pace to match your walking speed
Considerations
Plastic Cutting Deck
Lightweight but less durable than steel; won't rust
30-Minute Runtime
Below-average runtime (database avg: 52.7 min)
Why We Recommend It
- 01.
Both 4.0Ah batteries and a dual charger are included, so you can swap and recharge simultaneously with zero added investment
- 02.
Brushless motor technology runs cooler and more efficiently, translating to better battery usage and longer motor life
- 03.
Rear-wheel drive variable speed self-propulsion adapts to your pace and maintains traction on inclines where front-wheel drive mowers slip
- 04.
6-position single-lever cutting height (1-3 in) adjusts quickly without bending down or using tools
- 05.
Zero emissions and push-button start mean no fumes, no oil changes, no pull-cord frustration , just charge and mow
Considerations
- 01.
30-minute total runtime is well below the category average of ~53 minutes, so yards over 1/4 acre may require a mid-mow break to swap and recharge
- 02.
18-inch plastic cutting deck is lightweight but less impact-resistant than steel decks , avoid rocky or debris-heavy areas to prevent cracking
- 03.
Cutting height tops out at 3 inches, which limits use on tall fescue or overgrown grass that benefits from higher cut settings
Technical Specifications
| Feature | Specification |
|---|---|
| Mower Type | Self propelled |
| Power Source | Battery |
| Cutting Width | 18" |
| Deck Material | Plastic |
| Blade Type | Rotary |
| Cutting Height | 1" – 3" |
| Height Positions | 6 |
| Battery | 20V 4Ah |
| Runtime | 30 min |
| Drive | Rear wheel, Variable Speed |
| Discharge | Mulch, Bag |
| Start Type | Push button |
Power & Performance
The MightyMow runs on a dual 20V (40V combined) brushless motor system, which delivers stronger and more consistent torque than older brushed motor designs found in this tier points. The brushless motor is particularly well-suited for average suburban grass , Kentucky bluegrass, bermuda, and fine fescue , in normal weekly mowing conditions.
In thick, wet, or overgrown grass, the 18-inch deck may bog down more than a higher-voltage or gas-powered model.
Cutting System
The 18-inch rotary cutting deck is constructed from plastic, keeping the overall weight low and eliminating any risk of rust , a genuine advantage in humid climates. Six cutting height positions span 1 to 3 inches and are controlled by a single centralized lever, making adjustments fast between mowing passes.
Discharge options include rear bagging for clean collection or mulching to return nutrients to the lawn, though there is no side discharge port.
Drive & Handling
Rear-wheel drive self-propulsion is a notable differentiator in this tier , it pushes from the back wheels rather than pulling from the front, which keeps the front of the deck lighter and easier to lift for turns, while maintaining better grip when going uphill. Variable speed control lets you dial in your walking pace rather than fighting to keep up with or slow down a fixed-speed drive system.
The lightweight plastic deck construction contributes to overall maneuverability in tighter yard layouts.
Battery / Fuel
Two 20V 4.0Ah lithium-ion batteries are included alongside a dual charger, meaning you can run one battery while the other charges simultaneously , a practical setup that partially offsets the 30-minute per-battery runtime. Customer feedback on battery life is mixed: some users report efficient quick-charge cycles, while others note real-world runtime closer to 15 minutes under heavier cutting loads.
For a yard of roughly 1,500-3,000 sq ft maintained regularly, one battery charge should typically be sufficient.
Who Is This Mower For?
Ideal For
- ✓ Homeowners with flat to gently sloping yards up to 1/4 acre who want self-propelled assist without the weight and hassle of a gas mower
- ✓ Eco-conscious users prioritizing zero direct emissions and quieter operation that won't disturb neighbors or require fuel storage
- ✓ Low-maintenance seekers who want push-button start and no seasonal tune-ups , no oil, spark plugs, air filters, or carb cleaning needed
- ✓ Downsizers or renters with smaller properties who need a compact, easy-to-store electric lawn mower that doesn't sacrifice self-propulsion
Not Ideal For
- ✕ Owners of large yards over 1/2 acre , the 30-minute runtime will require multiple charge cycles or extended breaks, making the job tedious
- ✕ Users with steep hills or heavily contoured terrain where more powerful rear-wheel or all-wheel drive gas mowers provide significantly better control
- ✕ Anyone needing side discharge for heavy grass clipping volume , this model only offers mulching and rear bagging, which can clog in thick or wet conditions
Assembly is minimal and straightforward , the handle folds flat for storage and clicks into the upright mowing position without tools. Most users report being ready to mow within 15-20 minutes of opening the box.
Fully charge both batteries before first use to ensure maximum runtime from the start and to calibrate battery cells properly
Fold the handle completely flat before storing to minimize garage or shed footprint , the plastic deck makes it light enough to hang vertically if needed
Warranty terms for this model are not explicitly detailed in available product data , verify current coverage directly with MightyMow or the retailer before purchasing, as cordless electric lawn mower warranties typically range from 1 to 3 years on the tool and 1 year on batteries.
FAQ
How long does the battery last on the MightyMow 2x20V lawn mower?
Each 4.0Ah battery is rated for approximately 30 minutes of runtime, and this model includes two batteries plus a dual charger. In practice, real-world runtime can vary from 15-30 minutes depending on grass thickness, terrain, and speed setting.
Swapping between the two batteries while one charges is the intended workflow for larger mowing sessions.
Is the MightyMow self-propelled or do you have to push it?
This model is self-propelled with rear-wheel drive and variable speed control, so the mower moves forward on its own , you guide it rather than push it. Variable speed lets you match the mower's pace to your natural walking speed, which reduces fatigue significantly compared to a standard push mower.
Can this cordless lawn mower handle hills and slopes?
The rear-wheel drive system provides better traction on inclines than front-wheel drive models because the powered wheels are located under the heavier portion of the mower. It handles gentle to moderate slopes adequately, but steep or heavily contoured terrain will challenge the 20V power system and may reduce battery life more quickly.
Does this electric lawn mower include the batteries, or do I need to buy them separately?
Two 20V 4.0Ah lithium-ion batteries and a dual charger are included in the box , no separate purchases required. This is one of the more practical aspects of this model, as replacement or additional batteries for cordless outdoor power tools can be a significant added expense with other brands.
What are the mulching and bagging options on this mower?
The MightyMow 2x20V supports both mulching and rear bagging discharge. Mulching finely chops clippings and returns them to the lawn as natural fertilizer, while the rear bag collects clippings for disposal.
There is no side discharge chute, so managing thick or wet grass in mulch mode may require slower passes to avoid clumping.
Is the cutting deck plastic or steel, and does that matter?
The 18-inch cutting deck is made from plastic, which keeps the mower lightweight and eliminates rust , a real benefit in wet or coastal climates. The trade-off is that plastic is less impact-resistant than steel, so mowing over rocks, roots, or debris carries a higher risk of deck damage.
For typical maintained suburban lawns it's a practical and durable choice.
Bottom Line
The MightyMow 2x20V is a well-rounded cordless electric lawn mower for homeowners with small-to-medium flat yards who want the convenience of self-propulsion without the upkeep of a gas engine. The dual battery and dual charger bundle is genuinely useful, and the brushless motor with rear-wheel drive puts it a step above basic entry-level electrics.
The 30-minute runtime is the primary limiting factor , if your yard pushes past 1/4 acre or you mow infrequently and let grass grow tall, you'll feel that ceiling.
Best for homeowners with maintained yards up to 1/4 acre who want a low-maintenance, zero-emissions self-propelled mower with everything included.
Consider alternatives if you have a large yard over 1/2 acre, steep slopes, or need side discharge for heavy grass volume.
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