Best Cordless Lawn Mower 2026: 5 on 1/3 Acre
This guide compares 5 options using published specifications, manufacturer documentation and independent reviews.
Quick answer
For most suburban yards, the EGO LM2156SP is the pick — a 56V 10Ah battery, self-propelled drive, and a brushless motor on a steel deck. Ryobi's 40V HP Brushless makes sense if you already own Ryobi batteries, the Greenworks Pro 80V recharges in 30 minutes, DeWalt's 2x20V MAX runs off the batteries in your toolbox, and the Kobalt 80V is the Lowe's-exclusive equivalent.
This comparison is desk research. We compared publicly available specifications, manufacturer documentation, and independent reviews and lab tests.
EGO LM2156SP 21" Self-Propelled Mower
🏆 Best overall: EGO LM2156SP is the right pick for most suburban yards. 56V 10Ah battery, self-propelled, brushless steel deck, 21" cut.
Top picks ↓| Product | Price | Link |
|---|---|---|
| $879Price as of 2026-09-18 | ||
| $400〜$550Reference price | ||
| $729.99Price as of 2026-09-20 | ||
| $500〜$700Reference price | ||
| $59.96Price as of 2026-09-20 |
Top picks
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Buy at egopowerplus.com or home depot. Often bundled with battery + charger for $700-900.
EGO LM2156SP is the right pick for most suburban yards. 56V 10Ah battery, self-propelled, brushless steel deck, 21" cut. 75-min runtime on max. The EGO Power+ ecosystem is the most complete in cordless outdoor power equipment. Premium pricing.
Pros
- ✓Longest runtime in this comparison
- ✓Self-propelled
- ✓Broad ecosystem
Cons
- ✗$700+ premium pricing
- ✗Battery weight (~7 lb)
Buy at homedepot.com or ryobitools.com. Pairs with full Ryobi 40V outdoor lineup.
Ryobi 40V HP Brushless is the right pick if you already own Ryobi tools. 21" cut, brushless, 8Ah battery, 60-min runtime. Side-discharge chute is rare in cordless mowers — useful for tall first-of-season grass.
Pros
- ✓Pairs with Ryobi 40V tools
- ✓Side-discharge chute
- ✓Solid value
Cons
- ✗Slower recharge (90 min)
- ✗Push-only at this tier
Buy at greenworkstools.com or amazon.com. Watch for spring sales.
Greenworks Pro 80V is the right pick if you want fastest recharge. 80V brushless, 30-minute recharge time means you can mow, recharge during a break, and mow again. 50-min runtime per charge. Smaller battery ecosystem than EGO.
Pros
- ✓30-minute recharge
- ✓Strong cut on wet grass
- ✓Cheaper than EGO
Cons
- ✗Smaller accessory ecosystem
- ✗50-min runtime is shorter than EGO
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Buy at homedepot.com or dewalt.com. Battery interoperability with 20V MAX tool ecosystem.
DeWalt 2x20V MAX is the right pick if you have DeWalt power tools. Uses standard 20V MAX batteries from your existing tool collection. 45-min runtime is shorter than dedicated outdoor brands but the battery interchangeability is the win.
Pros
- ✓Uses standard DeWalt 20V batteries
- ✓Tool interoperability
- ✓Strong build
Cons
- ✗Shortest runtime in this comparison
- ✗Heavier than 56-80V dedicated mowers
Buy at lowes.com — Lowe's exclusive brand.
Kobalt 80V is the right pick for Lowe's loyalists. 80V brushless, 5Ah battery, 55-min runtime, 21" cut. Self-propelled variant available. Cheapest of the 80V class. Battery ecosystem is mower + trimmer + blower — narrower than EGO or Ryobi.
Pros
- ✓Cheaper than EGO in same class
- ✓Self-propelled variant
- ✓Reliable Lowe's distribution
Cons
- ✗Battery ecosystem narrower
- ✗Service via Lowe's only
Which one is right for you?
Suburban homeowners wanting one battery ecosystem for everything
EGO LM2156SP 21" Self-Propelled Mower
EGO's Power+ platform covers mower, trimmer, blower, and snowblower — one battery family for your entire yard.
DIYers with an existing DeWalt power tool collection
DeWalt 2x20V MAX 21" Mower
The 2x20V MAX mower runs on the same batteries already in your DeWalt drills and saws, eliminating redundant chargers.
Homeowners with sloped yards who mow twice a week
Ryobi 40V HP Brushless Mower
60-min runtime and a side-discharge chute handle tall or overgrown grass without bogging down the motor.
Time-pressed homeowners who mow on a tight schedule
Greenworks Pro 80V 21" Mower
The 30-minute recharge means you can finish a mow, recharge over lunch, and do a second pass the same afternoon.
Budget-conscious Lowe's shoppers upgrading from gas
Kobalt 80V 21" Mower
Kobalt 80V delivers self-propelled, brushless performance at the lowest price in the 80V class, available in-store at Lowe's.
Runtime per charge
1/3-acre yard run-time (single battery, max mode): EGO LM2156SP (56V, 10Ah) 75 min, Greenworks Pro 80V (4Ah) 50 min, Kobalt 80V (5Ah) 55 min, Ryobi 40V HP (8Ah) 60 min, DeWalt 2x20V MAX (2x8Ah) 45 min.
Two-battery setups let you finish a 1/2-acre yard: EGO sells dual-battery models, DeWalt is 2x20V MAX by default, Greenworks/Kobalt 80V single-battery is enough for most yards.
Recharge time: EGO 60 min, Greenworks 80V 30 min, Kobalt 80V 45 min, Ryobi 40V 90 min, DeWalt 20V 60 min per battery (so 120 min for both). Greenworks 80V recharges fastest.
Cut quality and bagging
Cut quality on wet morning grass: EGO best (high RPM brushless motor + steel deck), Greenworks Pro very close, Kobalt close, Ryobi adequate, DeWalt slightly behind due to lower torque on 2x20V setup. All 5 do a fine job on dry grass.
Bagging vs mulching: All 5 support both. EGO and Greenworks Pro bagging is the cleanest (less spillage at the chute). Ryobi 40V HP includes a side-discharge chute for very tall grass.
Self-propulsion: EGO LM2156SP and Kobalt 80V offer self-propelled variants. The standard models are push-only. Self-propelled is worth the upgrade if your yard has any slope.
Battery platform lock-in
You're not just buying a mower — you're committing to a battery platform. EGO has the broadest lineup (mower, trimmer, blower, snowblower, chainsaw). Ryobi 40V is similarly broad. Greenworks 80V and Kobalt 80V are mower-focused with fewer accessory options. DeWalt 20V MAX is dominated by power tools — fewer outdoor accessories.
Best decision framework: if you already own DeWalt tools, the 2x20V mower is a no-brainer. If you don't have battery tools yet, EGO or Ryobi 40V give you the broadest outdoor + tool ecosystem.
Frequently asked questions
Cordless or gas in 2026?▼
EGO 56V vs. Greenworks 80V — does voltage matter?▼
Self-propelled or push?▼
How long do batteries last?▼
Prices change. Check the retailer for the current price.
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