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Greenworks 40V 20" Push Mower (LM2034)

Ranked #16 of 18 in Best Cordless Lawn Mowers: Greenworks & Ryobi Push and Self-Propelled (2026). Here is every spec we scored, where it came from, and how it compares.

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#16

Greenworks 40V 20" Push Mower (LM2034)

Best for: 20 in push mower for 1/3 acre

2.3/10

What we like

    Watch out for

    • Cutting-height range not published by Greenworks
    • Listed weight not published by Greenworks

    Score breakdown

    Deck width 25%
    Kit battery energy 20%
    Runtime 15%
    Rated lawn size 15%
    Cutting-height range * 10%
    Self-propelled 10%
    Listed weight * 5%

    * Not published by the manufacturer; scored at the lowest published value in this category, so an unpublished figure never outranks a published one.

    Deck width20 in
    Kit battery energy200 Wh
    Runtime60 min
    Rated lawn size0.33 acres
    Cutting-height rangeNot listed
    Self-propelledNo
    Listed weightNot listed
    Kit battery40 V 5 Ah = 200 Wh (computed)
    Cutting height5 positions (heights not listed)
    Rated lawn sizeUp to 1/3 acre (0.33 acres, computed)
    WeightNot published by the maker
    PriceCheck price
    Check price at Amazon
    Specs source:

    How it compares

    Open the full comparison table

    Ryobi 80V HP Brushless 30" Self-Propelled Multi-Blade Mower Kit
    9.5/10
    #1 · The widest deck and biggest battery here
    Greenworks 60V 25" Dual-Blade Self-Propelled Mower (LM2516S)
    6.8/10
    #2 · 25 in deck rated for 1 acre
    Greenworks 80V 21" 4-in-1 Self-Propelled Mower (LM2108S)
    6.5/10
    #3 · 8 Ah 80V battery rated for 3/4 acre
    Ryobi 40V HP Brushless 21" Self-Propelled Mower Kit (RY40HPLM01K2)
    6.4/10
    #4 · 80 min runtime on two 6 Ah batteries
    Ryobi 40V HP Brushless 21" Self-Propelled AWD Multi-Blade Mower Kit (RY40HPLM03K2)
    6.2/10
    #5 · All-wheel drive with two 6 Ah batteries
    Greenworks 80V 25" Dual-Blade Self-Propelled Mower (LM2508S)
    5.8/10
    #6 · 25 in deck on one 80V 4 Ah battery
    Greenworks 60V 21" Self-Propelled Mower (LM2116S)
    5.6/10
    #7 · Two 60V 4 Ah batteries for 3/4 acre
    Greenworks 40V 25" Dual-Blade Self-Propelled Mower (LM2504S)
    4.8/10
    #8 · 25 in deck on the 40V platform
    Greenworks 48V (24V x 2) 21" Self-Propelled Mower (LM2112S)
    4.4/10
    #9 · Runs on two 24V USB batteries
    Ryobi 40V HP Brushless 20" Self-Propelled Multi-Blade Mower Kit
    4.1/10
    #10 · Self-propelled 20 in with an 8 Ah battery
    Greenworks 40V 21" Self-Propelled Mower (LM2154S)
    3.9/10
    #11 · Single 5 Ah battery, 1/3 acre
    Ryobi 40V HP Brushless 21" Push Mower Kit
    3.7/10
    #12 · 21 in push mower with an 8 Ah battery
    Ryobi 40V HP Brushless 20" Self-Propelled Mower Kit
    3.6/10
    #13 · Lightest self-propelled mower here at 42.8 lb
    Ryobi 18V ONE+ HP Brushless 20" Self-Propelled Mower Kit
    3.5/10
    #14 · Self-propelled mower on 18V ONE+ batteries
    Greenworks 60V 21" Push Mower (LM2116)
    3.2/10
    #15 · 21 in push mower on a 60V 5 Ah battery
    Ryobi 18V ONE+ HP Brushless 16" Push Mower Kit
    1.3/10
    #17 · Lightest mower here at 34.4 lb
    Greenworks 40V 17" Push Mower (LM1724)
    1.3/10
    #18 · Compact 17 in mower for 1/4 acre