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BLACK+DECKER 20-Inch Corded Electric Lawn Mower vs GasXcel 21" Self-Propelled Lawn Mower Gas, 170CC

Updated July 2026 — BLACK+DECKER 20-Inch Corded Electric Lawn Mower wins on height range, GasXcel 21" Self-Propelled Lawn Mower Gas, 170CC wins on engine size and price.

The GasXcel 21" Self-Propelled Lawn Mower offers more power and versatility, making it the better choice for larger lawns, while the BLACK+DECKER is ideal for smaller, flat areas.

Why BLACK+DECKER 20-Inch Corded Electric Lawn Mower is better

Price

BLACK+DECKER is $130 cheaper

Weight

BLACK+DECKER is lighter and easier to maneuver

Height Adjustment

BLACK+DECKER has a wider height adjustment range

Why GasXcel 21" Self-Propelled Lawn Mower Gas, 170CC is better

Power

GasXcel has a more powerful engine

Cutting Versatility

GasXcel offers a 4-in-1 cutting system

Grass Capacity

GasXcel has a larger grass bag

Overall score

BLACK+DECKER 20-Inch Corded Electric Lawn Mower
75
GasXcel 21" Self-Propelled Lawn Mower Gas, 170CC
85

Specifications

SpecBLACK+DECKER 20-Inch Corded Electric Lawn MowerGasXcel 21" Self-Propelled Lawn Mower Gas, 170CC
Motor TypeElectricGas
Cutting Modes3-in-14-in-1
Self-PropelledNoYes
Warranty2 Years1 Year
Height Adjustment7 Positions7 Positions

Dimension comparison

BLACK+DECKER 20-Inch Corded Electric Lawn MowerGasXcel 21" Self-Propelled Lawn Mower Gas, 170CC

Overview of the BLACK+DECKER 20-Inch Corded Electric Lawn Mower

The BLACK+DECKER 20-Inch Corded Electric Lawn Mower is designed for homeowners seeking a lightweight and efficient mowing solution. Priced at $259.00, this mower features a powerful 13 Amp motor that provides reliable cutting performance, particularly through thick grass and overgrowth. With a sales rank of 31,868, it's a popular choice among electric lawn mowers. Its versatility shines through in its 3-in-1 functionality: mulching, bagging, and side discharge. The mower's EdgeMax deck design allows for closer cutting near edges, making it ideal for maintaining a neat lawn without needing a trimmer.

Overview of the GasXcel 21" Self-Propelled Lawn Mower

The GasXcel 21" Self-Propelled Lawn Mower is a robust gas-powered option for those who require more power and mobility, priced at $389.99. This mower is equipped with a 170cc OHV engine, delivering consistent and smooth performance for residential lawns. With a sales rank of 31,962, it offers a 4-in-1 cutting system that allows mulching, rear bagging, side discharge, and rear discharge. The self-propelled feature significantly reduces the effort needed to maneuver, especially on slopes, making it a great choice for larger yards or uneven terrain.

Performance Comparison

When it comes to performance, the BLACK+DECKER mower’s 13 Amp motor competently handles grass cutting with its 20-inch deck. However, the GasXcel mower, featuring a 170cc engine, provides more power and efficiency, particularly beneficial for larger or thicker patches of grass. While the BLACK+DECKER excels in consistent electric performance, the GasXcel's self-propelled drive offers greater ease of use on challenging terrains. For those with flat, smaller lawns, the electric mower may suffice, but the GasXcel’s capacity is better suited for bigger yards, making it a more versatile choice overall.

Cutting Versatility

The cutting versatility of these mowers varies significantly. The BLACK+DECKER mower boasts a 3-in-1 functionality, allowing for mulching, bagging, and side discharge, which is ideal for homeowners looking for convenience. On the other hand, the GasXcel takes this a step further with its 4-in-1 system, adding rear discharge capabilities. This versatility grants users more flexibility to adapt to different grass conditions and seasonal needs. For those who prioritize adaptability in their mowing tasks, the GasXcel's added feature offers a clear advantage.

Ease of Use

Ease of use is a crucial factor when choosing a lawn mower. The BLACK+DECKER mower is lightweight and features a tool-free height adjustment with seven settings, allowing users to easily customize the cutting height between 1.5 inches and 4 inches. Conversely, the GasXcel mower, while heavier, offers a self-propelled drive that alleviates pushing effort, especially on inclines. Its foldable design allows for compact storage, making it easier to manage in smaller garages. While both mowers are designed for user convenience, the specific needs of the user—such as yard size and terrain—will dictate which model is easier to handle.

Grass Collection and Management

Grass collection and management is another area where these mowers differ. The BLACK+DECKER mower includes a 13-gallon fabric grass bag, making it easy to see when it’s full and simplifying the collection process. In comparison, the GasXcel features a larger 65-liter (17.5 gallons) grass bag, allowing for longer mowing sessions before needing to stop for collection. This larger capacity can significantly enhance productivity for users with larger lawns. For homeowners who prioritize efficiency and extended mowing time, the GasXcel’s superior grass collection system is a notable advantage.

Durability and Build Quality

Both mowers are designed with durability in mind, yet their construction materials differ due to their power source. The BLACK+DECKER electric mower offers a lightweight design that is easy to maneuver, while the GasXcel’s high-carbon steel blade and robust engine emphasize longevity and performance under tough conditions. The steel build of the GasXcel is particularly advantageous for those who face a variety of mowing conditions. If durability and long-term performance are priorities, especially for larger areas, the GasXcel may be the more reliable option.

Which should you buy?

Deciding between the BLACK+DECKER 20-Inch Corded Electric Lawn Mower and the GasXcel 21" Self-Propelled Lawn Mower ultimately hinges on your specific needs. The BLACK+DECKER mower is about 33% cheaper at $259.00 compared to the GasXcel’s $389.99, making it an excellent choice for those with smaller, flat lawns who prefer a lightweight electric option. In contrast, the GasXcel’s gas engine, larger cutting deck, and self-propelled feature make it ideal for larger, more challenging terrains. For homeowners who require versatility, power, and efficiency, the GasXcel stands out as the better investment.