Best Cordless Lawn Mower Head-to-Head Test

*** CORRECTION **
EGO tied for the best mower with the 21" Greenworks mower. Third place went to the 25" Greenworks and Black and Decker coming in 6-points behind the top two mowers.
A subscriber pointed out an error in one of the calculated values. When we recalculated the battery voltage the Greenworks did better on an Sq ft/ watt hr basis. That’s why it moved up to a tie.

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We received 12 mower - 2 different models from 2 manufacturers including Greenworks and Kobalt. The models we tested included:

Black & Decker CM2060C
DEWALT DCMW220X2C
EGO LM2130SP
Greenworks 21" 2520102
Greenworks 25" 2510802
Hart HLPM021
Kobalt 80v KMP 6080-06
Kobalt40v KMP 2580-06
Makita XML08PT1
Ryobi RY401130
Skil SM4910-10
Stihl RMA 510 V

Cut Quality – Winner EGO Power+
To evaluate the cut quality we mowed adjacent areas with each mower side by side.
After cutting the grass we evaluated how well the grass was cut. The cut quality of the grass areas was excellent.

Noise Winner – Makita
Makita took the win with 80.5 dB and was noticeably quieter even without a decibel meter. HART came in second place with 82.4 dB and EGO was third with 84.1 dB.

Run-Time
Run-time is a big question on the minds of people considering the purchase of battery-powered mowers. So, how do you make any sense of that in order to determine the best runtime? We measured the performance of the mowers “out of the box,” and also normalized performance on the basis of the energy available. [Using Watt-Hours]
Watt-Hours is calculated by multiplying the voltage (actual load voltage, not the MAX that some companies advertise) by the battery pack Amp-Hours.

Run-time Procedure

The Kobalt 80v took first place, it ran 85.5 minutes and mowed 38,600 sq. ft. That’s 4.2 miles!Second place went to the MAKITA, it ran 83 minutes, and mowed 35,000 Sq. Ft. [3.8 miles] Third place went to the Greenworks 60V 21″ mower which ran for 65 minutes and mowed 27,700 Sq Ft. [3 miles]
The HART mower ran the least at 22 minutes and mowed 8,400 Sq. Ft.

Ergonomics – Winner 25″ Greenworks
The Greenworks mowers were virtually identical in a number of ergonomic categories and scored very well in those. In close second place was the EGO mower.

Handle Comfort & Adjustment Winner
Both of the Greenworks mowers were superior to the group in terms of comfort, handle height and adjustments.

Maneuverability Winner – Black & Decker. We evaluated how easily the mowers were to push and to cut around trees. This category is largely factored based on the mower weight, self-propulsion, and wheelbase design.

Black and Decker and DEWALT were more maneuverable than the rest of the mowers because they were NOT self-propelled.

The 25″ Greenworks was the best maneuverability in the self-propelled mowers. This was due because of the short wheelbase front to back.
The mowers with the longest wheelbase ranked towards the bottom.

Deck Height Adjustability Winner – Ryobi

The Ryobi mower was a dramatic stand out with a grab handle that allowed the user to lift or drop the mower while adjusting the height.

EGO took second place with the deck height adjustment out on the deck, clear of any obstructions.

Third place went to the Skil, the large handle and reinforced plastic detent plate worked smoothly and easily. Some mowers had knuckle-busting setups that would cause the user to hit the lower part of the handle assembly when adjusting the mower for taller cutting.

Compact Design & Storage Size Winner – EGO LM2130SP

The EGO really blew away the competition with their very easy to store design. Both Greenworks and the HART models also fold up fairly small.

Fit & Finish Winner – Makita

Makita stands out in this category.
This mower was built for daily nonstop use by professional landscapers. It’s a BEAST! The Makita features large-diameter rubber over-molded wheels, a steel deck, and everything about it is tight and made to stand up to some hard use.

Best Value Winner –Greenworks 21″

At the time of publication, the 21″ Greenworks mower was priced at about $349 with a 4.0Ah battery given the performance and overall quality this was a solid pick for the best value. This mower tied for 1st place overall and is the second least expensive in the group.

So who has the Best Cordless Lawn Mower?

EGO took 1st place as the BEST cordless lawn mower with and the 21″ Greenworks one-point behind it. Third place went to the 25″ Greenworks.
The fourth place was Black and Decker who had a SOLID showing.