Mowers
Best lightweight battery lawn mower
Three of the six mowers we have specs for publish a weight. That fact is most of this page.
Affiliate disclosure: we earn a commission if you buy through our links, at no extra cost to you. It never changes which product we rank first — here is how we're funded.
We have not tested these units. Every spec on this page comes from the manufacturer's own documentation and is linked to it. Every computed figure is arithmetic you can redo. Prices are checked daily — last verified January 1, 1970. Here is exactly how we pick.
Quick picks
Ranked on the published specs and the arithmetic below. Tap any row to jump to the full write-up. We have not tested these units -- here is exactly how we pick.
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 | No photo Greenworks 40V 20" Push LM2054 40 minutes on a 160Wh pack and 57.5 lb to push -- the honest answer for a third of an acre and nothing more. | Best for small yards | 8.0 | |
| 2 | No photo Toro 60V Max 21" Recycler Self-Propel (21356) The only manufacturer here that publishes the actual watt-hour figure for its pack -- and the number tells you something the others hide. | Best published watt-hour honesty | 8.3 | |
| 3 | No photo Greenworks 80V 21" 4-in-1 LM2108S The only mower here that publishes motor wattage, blade RPM, weight and an acreage rating -- and the only one whose battery warranty matches its tool warranty. | Best published spec sheet | 8.4 |
#ad Buy links are affiliate links. Prices come from a live daily check; where we have no verified price we say "check price" rather than print a stale one.
Weight is the spec people ask about after they have bought the mower, when they are trying to get it up two steps into a shed. It is also the spec half this industry declines to publish. Here is every published figure we have, ranked, with the arithmetic that makes them comparable.
Every published weight
| Mower | Deck | Published weight | Drive | lb per inch of deck |
|---|---|---|---|---|
| Greenworks 40V LM2054 | 20 in | 57.5 lb | Push | 2.9 |
| Toro 60V 21356 | 21 in | 66 lb | Self-propelled | 3.1 |
| Greenworks 80V LM2108S | 21 in | 75 lb | Self-propelled | 3.6 |
| EGO LM2135SP | 21 in | Not published | Self-propelled | Unknown |
| Ryobi RY40HPLM01B | 21 in | Not published | Self-propelled | Unknown |
| Kobalt 80V dual-port | 21 in | Not published | Self-propelled | Unknown |
Weights are the manufacturers' own published figures from the pages cited below. Pounds per inch of deck is our arithmetic. Three of six machines publish no weight, and we will not estimate one.
Pounds per inch, and why it is the fairer number
A 20-inch mower being lighter than a 21-inch mower is not news; it has less machine in it. Divide the weight by the deck width and you get something that compares across sizes — how heavily built each mower is per inch of grass it cuts.
That is a fair trade, not a criticism. You are buying 160Wh more energy and a drive that pushes the mower for you. But it is worth seeing plainly, because a lot of buyers assume the heavier machine is heavier because it is better built, and on these published numbers it is heavier because it carries more battery.
Where the weight actually costs you
Self-propelled drive removes the weight penalty in exactly one situation: pushing the mower forwards in a straight line on level ground. Everywhere else you are still moving all of it yourself.
- Turning at the end of every row. On a 5,000 sq ft lawn with a 21-inch deck, that is roughly 40 turns per mow. The drive does not help you pivot.
- Pulling backwards out of a bed, around a tree or off a fence line. Rear-wheel drive resists you going the other way.
- Lifting. Into a shed, over a step, onto a wall hook, into a trunk. This is where 75 lb and 57.5 lb are two genuinely different objects.
- Slopes. Weight on a bank is a control problem, not a strength problem. We work through what is and is not published about mowing gradients on the hills page.
Notes on the picks
Greenworks LM2054: the only sub-60 lb mower with a published figure
57.5 lb, a 20-inch deck, 160Wh in the box and a published 40-minute runtime claim. Greenworks rates it to a third of an acre, and that rating is the honest boundary of this machine rather than a marketing floor: the same page publishes a 120-minute recharge, so a lawn that needs two packs' worth of mowing becomes an afternoon.
The one number to check against your own lawn is the cut height: 1.2 to 3.6 inches. If you keep a cool-season lawn at 3 inches or above, as extension guidance recommends, this deck spends its life near the top of its adjustment range. We work that through on the mowing height guide.
#ad Check the Greenworks LM2054 price on Amazon — how we're funded.
Toro 21356: 66 lb, and the only one that stands up
Eight and a half pounds heavier than the Greenworks, with self-propel drive, a 14-gauge steel deck and 324Wh of published battery. The reason it is here rather than on a general roundup is SmartStow: Toro publishes a vertical storage position, and no other mower on this site publishes any storage specification at all. In a garage where the mower competes with a car, that is the spec that decides.
#ad Check the Toro 21356 price on Amazon — how we're funded.
Greenworks LM2108S: 75 lb, and worth it if you need the drive
The heaviest published weight here, and the most transparent spec sheet in the category — blade RPM, weight, acreage rating, recharge time and a 4-year battery warranty, all published. If you are going to own a heavy self-propelled mower, own the one whose maker tells you what it weighs.
#ad Check the Greenworks LM2108S price on Amazon — how we're funded.
The three that publish nothing
EGO, Ryobi and Kobalt all publish deck width, battery size and a runtime claim for their flagship walk-behinds, and none of them publishes a weight on the pages we work from. We are not going to fill those cells from memory or from a retailer's shipping weight, which includes the box.
If weight is the spec that decides your purchase, that absence is itself the answer: buy from the two brands that tell you. If it is a secondary concern, the main mower roundup ranks all six on the specs they do publish.
What we cannot tell you
- Whether the published weights include the battery. None of the three pages states it either way. A 4.0Ah 80V pack is not a trivial share of 75 lb, so treat cross-brand comparisons as directional.
- How it feels to push. Wheel size, bearing quality and deck balance all change perceived effort, and none of them is published.
- Weights for the other three machines. Not published. Not estimated here.
The picks in full
Specs are the manufacturer's own and linked to the page they came from. Prices come from a live daily check; where we have no verified price we say so rather than print a stale one.
Greenworks 40V 20" Push LM2054
Greenworks · Greenworks 40V · Our score 8.0/10
#ad No verified live price right now, so we show none rather than a stale one. How we're funded.
40 minutes on a 160Wh pack and 57.5 lb to push -- the honest answer for a third of an acre and nothing more.
Published specs
| Model / SKU | LM2054 / 2549902 |
|---|---|
| Deck | 20 in |
| Max blade speed | 3200 RPM |
| Battery included | 40V 4.0Ah |
| Cut height | 1.2-3.6 in, 7 positions |
| Runtime claim | Up to 40 min |
| Weight | 57.5 lb |
| Rated for | Up to 1/3 acre |
| Warranty | 3-yr tool / 3-yr battery |
Source: 40V 20" 4-in-1 Push Lawn Mower (LM2054), greenworkstools.com
40V x 4.0Ah = 160Wh. Note it claims 40 minutes on 160Wh where the 80V flagship claims 33 minutes on 320Wh -- a 20 in deck and no self-propel drive motor is why.
What the numbers favor
- Lightest published weight on this page at 57.5 lb, and the only sub-60 lb mower here
- Claims 40 minutes from 160Wh -- the best published minutes-per-watt-hour of any mower on this page
- Same 3200 RPM blade speed as the 80V flagship
- 4-in-1 deck at the entry price
What they don't
- Push only -- no drive assist on any slope
- 1.2 in minimum cut height is lower than most cool-season lawns should ever be cut
- 120-minute recharge, three times the 80V model's 40 minutes
your lawn is over a third of an acre or has any real slope. Greenworks rates it to 1/3 acre and you will be pushing all 57.5 lb of it up the hill yourself.
How it scores
Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.
Toro 60V Max 21" Recycler Self-Propel (21356)
Toro · Toro 60V Max Flex-Force · Our score 8.3/10
#ad No verified live price right now, so we show none rather than a stale one. How we're funded.
The only manufacturer here that publishes the actual watt-hour figure for its pack -- and the number tells you something the others hide.
Published specs
| Model | 21356 |
|---|---|
| Deck | 21 in, 14-gauge steel |
| Battery | 60V Max L324, 6.0Ah, 324Wh |
| Charge time | 150 min |
| Runtime claim | Up to 45 min on the 6.0Ah |
| Drive | Personal Pace variable-speed RWD |
| Weight | 66 lb |
| Storage | SmartStow vertical |
Source: 60V Max 21 in. Recycler Self-Propel Lawn Mower (21356T), toro.com
Toro labels the pack 60V Max 6.0Ah and publishes 324Wh. 324 / 6.0 = 54V -- the nominal voltage, not the 60V max-charge figure on the sticker. Every brand's 'max volts' is roughly 11% above nominal, so a nameplate watt-hour number is always about 11% optimistic. This is the single most useful spec on this page.
What the numbers favor
- Publishes a real watt-hour figure (324Wh) instead of leaving you to multiply the marketing voltage
- 45 minutes from 324Wh, against Greenworks' 33 minutes from a nameplate 320Wh
- 14-gauge steel deck, the only steel deck spec published on this page
- SmartStow vertical storage -- a genuine constraint solver in a one-car garage
What they don't
- 150-minute recharge is the slowest here by a wide margin
- Toro's 60V line is narrower than EGO's or Ryobi's, so the platform grows less far
you are buying into a platform rather than a mower. Toro builds excellent mowers; the 60V Flex-Force tool range is not the one to bet a decade of yard tools on.
How it scores
Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.
Greenworks 80V 21" 4-in-1 LM2108S
Greenworks · Greenworks 80V · Our score 8.4/10
#ad No verified live price right now, so we show none rather than a stale one. How we're funded.
The only mower here that publishes motor wattage, blade RPM, weight and an acreage rating -- and the only one whose battery warranty matches its tool warranty.
Published specs
| Model / SKU | LM2108S / 2550402 |
|---|---|
| Deck | 21 in |
| Max blade speed | 3200 RPM |
| Battery included | 80V 4.0Ah |
| Cut height | 1.38-4.0 in, 7 positions |
| Runtime claim | Up to 33 min |
| Weight | 75 lb |
| Rated for | Up to 1/2 acre |
| Warranty | 4-yr tool / 4-yr battery |
Source: 80V 21" 4-in-1 Self-Propelled Lawn Mower (LM2108S), greenworkstools.com
80V x 4.0Ah = 320Wh, using Greenworks' advertised pack voltage.
What the numbers favor
- 4-year battery warranty -- a year longer than EGO's 3-year, on the component that fails first
- Publishes blade RPM, weight and acreage rating; the other two brands publish none of the three
- 40-minute recharge on the included charger, the fastest published here
- 4-in-1 deck adds turbo leaf pickup on top of mulch, bag and side discharge
What they don't
- 320Wh included, the least of the three flagships -- and the 33-minute runtime claim reflects that
- 75 lb is the only published weight here, and it is not light
you want one battery to finish a half-acre without a swap. Greenworks rates the mower for 1/2 acre but claims only 33 minutes on the included pack; those two numbers only reconcile if you buy a second battery.
How it scores
Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.
Where to buy the tools on this page
Every link below is an Amazon affiliate link. We show no price we have not verified today, so where there is no live figure the link says "check price" and takes you to the listing to read it there.
Best for small yards
Greenworks 40V 20" Push LM2054
Greenworks · Greenworks 40V
Best published watt-hour honesty
Toro 60V Max 21" Recycler Self-Propel (21356)
Toro · Toro 60V Max Flex-Force
Best published spec sheet
Greenworks 80V 21" 4-in-1 LM2108S
Greenworks · Greenworks 80V
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Common questions
What is the lightest battery lawn mower?
How much does a battery lawn mower weigh?
Does a lighter mower mean less cutting power?
Is weight worth worrying about on a self-propelled mower?
Which mower is easiest to store?
Why do so few brands publish a mower weight?
Sources
Read next
- Mowers
Deck width sets how fast you finish. Watt-hours set whether you finish at all.
- Best battery lawn mower for a small yard
Under a third of an acre, weight and storage beat watt-hours. The numbers that actually matter, ranked.
- Do I need a self-propelled lawn mower?
Slope and weight decide this, not lawn size. What the drive motor costs in watt-hours and pounds.
- Best electric mower for hills and slopes
Drive speed control and weight decide slope performance. Ranked on both, with the unpublished gaps named.
- What size mower do I need for my yard?
Deck width and watt-hours by lawn size, with the mowing-time arithmetic for each.
- 40V vs 80V: what the voltage on the sticker actually buys you
Volts x amp-hours = watt-hours. The one calculation that makes every battery spec comparable.