You mow a lawn the size of a postage stamp. A quarter acre, maybe less. Gas mowers? They choke, smell, and need a tune-up every spring. Corded electric? You drag a 100-foot extension cord like a leash. So you want cordless. But then you see 40V, 60V, 80V batteries — and prices from $250 to $700. Here’s the truth: for a small yard under 5,000 square feet, most of that power is wasted. You don’t need a 60-minute runtime. You need a mower that starts every time, cuts clean, and doesn’t cost as much as a used car. In 2026, two brands own this space: EGO and Greenworks. I’ll tell you exactly which one to buy — and which to skip.
Why Cordless Beats Gas for Small Lawns (The Numbers)
Gas mowers produce 87 pounds of CO2 per hour of operation. A cordless electric mower? Zero emissions at the point of use. But that’s not why you should switch. The real reason is maintenance.
What You Actually Save
A gas mower needs an oil change every 25 hours, a spark plug every season, and fresh gas that goes bad in 30 days. Cordless electric mowers have one moving part: the motor. No oil. No plugs. No carburetor cleaning. The average small-yard owner saves about $80 per year in maintenance and fuel costs by switching to cordless.
The Runtime Reality Check
A 2,500 square foot lawn takes roughly 20 minutes to mow. Even the cheapest 40V battery from Greenworks runs for 30 minutes on a single charge. That means you can mow your yard and still have juice left for a trimmer. Don’t pay for a 60V or 80V system if you don’t need it. The extra voltage adds weight and cost — not cut quality.
Noise Matters More Than You Think
Gas mowers hit 95 dB. That’s hearing damage territory after 15 minutes. Cordless electric mowers run at 75-80 dB — conversational level. You can mow at 7 AM without waking the neighbors. For small yards near houses, that’s a real advantage.
EGO Power+ LM2102SP vs. Greenworks 25322: The Head-to-Head
These are the two best-selling cordless mowers for small yards in 2026. Both are 21-inch decks with self-propelled drive. Both use brushless motors. But they’re not equal.
| Spec | EGO Power+ LM2102SP | Greenworks 25322 |
|---|---|---|
| Voltage | 56V | 40V |
| Battery included | 5.0 Ah (1 battery) | 4.0 Ah (1 battery) |
| Runtime (rated) | 45 minutes | 30 minutes |
| Deck material | Steel | Steel |
| Self-propelled speed | Variable 0-3.5 mph | Single speed 2.5 mph |
| Weight (with battery) | 56 lbs | 48 lbs |
| Price (2026) | $549 | $349 |
| Warranty | 5 years (tool), 3 years (battery) | 4 years (tool), 2 years (battery) |
The EGO is heavier, more powerful, and costs $200 more. The Greenworks is lighter, cheaper, and has a shorter runtime. For a small yard under 4,000 square feet, buy the Greenworks. You don’t need the extra runtime or variable speed. For a yard between 4,000 and 6,000 square feet with slopes or thick grass, the EGO justifies its price.
Three Common Mistakes Buyers Make
I’ve seen people return perfectly good mowers because they bought the wrong one. Here’s what goes wrong.
Mistake 1: Buying a 60V or 80V Mower for a Tiny Lawn
A 60V battery weighs about 7 pounds. An 80V battery weighs 10 pounds. Put that on a mower, and you’re pushing 65+ pounds across a lawn that takes 15 minutes to mow. You’re paying extra for weight you don’t need. Stick with 40V or 56V for small yards.
Mistake 2: Ignoring Deck Width
Small yards don’t need a 21-inch deck. A 16-inch or 18-inch deck is lighter, cheaper, and easier to maneuver around flower beds and trees. The Greenworks 25022 (16-inch deck, $279) is a better fit for a 2,000 square foot lawn than the 21-inch model. You make one extra pass per row — that’s about 3 minutes more — but you save $70 and 10 pounds.
Mistake 3: Forgetting About Storage
Cordless mowers don’t fold as flat as gas mowers because of the battery compartment. The EGO LM2102SP requires 36 inches of vertical clearance when stored upright. If you have a low-clearance shed shelf, measure before you buy. The Greenworks 25322 folds to 24 inches — it fits under most workbenches.
When NOT to Buy Cordless (And What to Get Instead)
Cordless isn’t always the answer. Here’s when you should walk away.
Your Yard Is Over 7,000 Square Feet
At that size, you’ll need two battery swaps to finish. A single 40V battery costs $150 for a replacement. Two batteries plus the mower = $600+. At that price, a gas mower like the Honda HRX217VKA ($499) cuts faster and never stops for a recharge. Gas wins for lawns over half an acre.
You Have Thick, Wet, or Tall Grass
Cordless mowers bog down in wet grass and struggle with grass over 6 inches tall. The EGO handles it better than Greenworks, but neither matches gas torque. If you mow infrequently or have St. Augustine grass that grows fast, buy a gas mower or a corded electric with 12-amp motor (like the Greenworks 27072, $179).
You Want a Single Battery System for All Tools
If you already own Greenworks 40V tools (trimmer, blower, chainsaw), buy the Greenworks mower. The batteries swap. Same for EGO 56V owners. If you’re starting from scratch, Greenworks has a broader 40V tool lineup at lower prices. EGO’s 56V tools are more powerful but cost 30% more.
Final Verdict: Which Mower for Which Yard
- Yard under 3,000 sq ft: Greenworks 25022 (16-inch, $279). Light. Cheap. Does the job.
- Yard 3,000–5,000 sq ft: Greenworks 25322 (21-inch, $349). Best value for average small yards.
- Yard 5,000–7,000 sq ft with slopes: EGO LM2102SP ($549). Extra power and variable speed matter here.
- Yard over 7,000 sq ft or thick grass: Don’t buy cordless. Get the Honda HRX217VKA gas mower.
That’s it. Pick your size, pick your budget, and stop overthinking it.
