10 reviewed · Updated November 2026
Cordless mowers have caught up with gas for most yards up to half an acre. Push a button, mow, done. No fuel, no oil changes, no pull cord. We researched the ten best rated cordless lawn mowers on Amazon and read what owners who timed their runtime actually reported, because the published figures do not survive contact with a real lawn.
The most capable cordless mower we researched, and the only one where owners stop comparing it to gas.
Score
9.1Price
$1,078.00checked Oct 28, 2026
Gives you most of what the expensive EGO does for less than half the money, and 2,200 owners agree.
Self-propel on the EGO platform for $529.00, though a handful of owners report early failures.
The toughest built mower here, let down by a runtime figure that three official sources cannot agree on.
A quarter acre mower with a big battery for $329.99, and owners keep confirming the runtime.
Clever vented deck and an honest runtime claim, but owners with damp thick grass had a hard time.
Light, cheap, and the one mower here whose runtime beats its own spec sheet by double.
The cheapest way to get a 21 inch self-propelled cut, with a drive system owners consistently criticize.
The easiest mower here to push, with a 1 year battery warranty that should give you pause.
A genuinely good idea on the wrong listing. The older 17 inch at $239.99 is the better buy.
Published runtime figures in this category are close to meaningless, and we can prove it with three examples from our own research.
The Greenworks 60V 21 inch has three different official figures. Amazon says up to 60 minutes. The box says up to 45. The Greenworks website says 45 in one place and 50 in another. An owner called Greenworks six times, got two agents who contradicted each other, then measured it himself in best case conditions and got just under 45 minutes.
Sun Joe goes the other way. Amazon lists 25 minutes for the 24V-X2-17LM. Owners repeatedly time 45 to 60 minutes, and two of them used a stopwatch.
SKIL lists the PM4910-15 cutting width as 3 inches in Amazon structured spec block. The mower cuts 20 inches.
Nobody states the conditions behind their runtime claim, which makes the numbers impossible to compare between brands. Use yard size ratings and owner reports instead, and that is why every review on this site carries the source of its spec data.
Four things, in order of how much they cost you.
Heat. One Greenworks owner ran the same mower across two seasons and isolated temperature as the variable. At 90F he got 15 to 20 minutes. At 65 to 70F he got about 45 minutes from the same mower on the same lawn. Ambient temperature alone swung his runtime by two to three times. Mow in the morning or the evening and you will get noticeably more done per charge.
A dull blade. A Greenworks 80V owner found his mower started chewing up batteries after a year. Sharpening the blade fixed it. A blunt blade makes the motor work harder for longer, so treat an uneven cut as your prompt to sharpen rather than a sign the mower is worn out.
Self-propel. Owners across EGO and Greenworks consistently report runtime dropping sharply with the drive engaged. Several bought push models specifically for that reason, and more than one says the mower is light enough that the drive is never missed on flat ground.
Wet or long grass. Reported on every single mower in our top ten without exception. One owner raised his deck a notch and finished his whole yard where he previously could not, which is the cheapest fix available.
The battery is the part that fails and the part that costs most to replace, so warranty length tells you more than any headline figure.
A 21 inch deck means fewer passes and a faster mow, which is why every mower in our top four cuts 21 inches. A 21 inch deck also draws more power per pass, weighs more and costs more.
Under about 5,000 sq ft, a 17 inch mower like the Sun Joe or the lighter LawnMaster will finish the job and be easier to store and handle. Between 5,000 sq ft and a quarter acre, 20 to 21 inches earns its keep. Above a quarter acre, plan on two batteries whatever you buy.
Slopes are the deciding factor, not lawn size. Cordless mowers weigh 36 to 82 lbs and roll easily on flat ground, and owners of push models repeatedly say they do not miss the drive. One EGO owner considered the self-propelled version, read about the effect on battery life, picked the push model for his half acre, and now questions whether anyone needs the drive.
On slopes the drive is worth the money and the lost runtime. Two things to know if you buy one. Turn the speed dial down before your first mow, because the top setting is quicker than you expect. And release the drive before you turn.
Every mower in our top ten ships with at least one battery and a charger, which is not true across the wider category. Tool-only listings look like bargains until you price a battery, and a 6.0Ah pack can cost more than half the mower.
Buying into a platform you already own tools for is the other saving worth chasing. EGO 56V, Greenworks 24V and 60V, WORX PowerShare and SKIL PWR CORE 40 batteries all cross over to trimmers, blowers and saws on the same system.
Two separate questions sit inside that one. Per charge, expect 25 to 60 minutes depending on deck width, battery size, grass condition and temperature. Over their lifetime, most owners get three to five seasons, though one LawnMaster owner was down to five minutes of runtime after two seasons and 15 to 20 uses. Battery warranty length is the best single predictor, and it ranges from 1 year on LawnMaster to 3 years on EGO.
Heat is the biggest single factor, and it is the one nobody mentions. One owner measured 15 to 20 minutes of runtime at 90F and about 45 minutes from the same mower at 65 to 70F. A dull blade is second, because the motor works harder for longer. Running self-propel and cutting wet or long grass come next. Mowing in the cool part of the day and keeping the blade sharp are both free.
Anywhere from $49.99 to about $175.00, depending on brand and capacity. LawnMaster MX24V 4.0Ah packs are $49.99 each. SKIL 2.5Ah packs run about $109.00 and 6.0Ah about $174.38. A Greenworks 60V 5.0Ah is about $174.00. Check the replacement price before you buy the mower, because a cheap mower with expensive batteries is not cheap.
Modern lithium packs have charge controllers, so leaving one connected is generally safe. Worth knowing that a hot battery will not accept a charge at all. One Greenworks owner reports his packs need about an hour to cool before charging starts, then roughly two hours to charge, so a hot afternoon mow can mean a three hour wait before the second battery is ready.
For most yards up to half an acre, yes. Owners of the EGO LM2135SP describe the cut as on par with gas mowers at the same price. One Greenworks owner reports it cut through thick, partly wet grass that she thinks her gas mower would have struggled with. Where cordless still loses is tall grass, wet grass and anything over half an acre on a single battery.
Most owners replace at three to five years, when runtime has dropped far enough to matter. Before you buy a replacement, sharpen the blade. One owner whose mower started chewing up batteries after a year fixed it entirely by sharpening, no new battery required.
Only for slopes. Cordless mowers are light enough that push models work fine on flat ground, and owners say so repeatedly. The drive also costs you runtime, with reports of noticeably shorter mowing time once it is engaged. One owner bought self-propelled over concerns about weight and then stopped using the drive because the mower rolls so easily.
Under about 5,000 sq ft, the Sun Joe 24V-X2-17LM at $299.99 is our pick. Owners time it at 45 to 60 minutes despite a 25 minute published spec, and at 42.6 lbs it is easy to handle and store. The LawnMaster CLMF4819A is lighter still at 37.6 lbs and cheaper at $239.99, with a shorter battery warranty as the trade.