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SKIL PWR CORE 40 Brushless 40V 20-Inch Self-Propelled Mower Kit, Includes 6.0Ah Battery and Auto PWR JUMP Charger - SM4910C-11 Review

★★★★★½ 4.5/5 (132 reviews)
$349.00
Brand: SKIL
SKIL PWR CORE 40 Brushless 40V 20-Inch Self-Propelled Mower Kit, Includes 6.0Ah Battery and Auto PWR JUMP Charger - SM4910C-11
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Overview

The SKIL PWR CORE 40 Brushless 40V 20-Inch Self-Propelled Mower (SM4910C-11) is a battery-powered mower that punches well above its price point, combining a reliable 40V platform with genuine self-propulsion and a 20-inch cutting deck. Priced at $349 with a 6.0Ah battery and fast charger included, it’s designed for homeowners with small to medium lawns—think up to a third of an acre—who want gas-like power without the fuel, fumes, or fuss. It’s a smart pick for anyone looking to ditch the gas can without breaking the bank.

Who Should Buy This

  1. Homeowners with 1/4 to 1/3 acre lawns – The 6.0Ah battery and brushless motor handle this size in a single charge, making it a perfect match for typical suburban lots.
  2. First-time battery mower buyers – At $349 with a battery and charger included, this kit is an affordable entry point for anyone tired of gas headaches but wary of high-end electric prices.
  3. Homeowners who hate gas cans – If you’re done with mixing oil, pulling cords, and storing smelly fuel, this mower’s push-button start and zero maintenance will feel like a revelation.
  4. Sloped-yard owners – The rear-wheel self-propulsion system offers variable speed control, so it’s genuinely useful on gentle inclines without being overly aggressive.

Key Features Breakdown

  • 40V Brushless Motor – This isn’t just marketing fluff. Brushless motors run cooler, last longer, and deliver more torque than brushed ones. On this mower, it means consistent power through thick grass, even in damp conditions, without bogging down.
  • 20-Inch Cutting Deck – A 20-inch deck is the sweet spot for yards under a half-acre. It’s wide enough to cover ground efficiently but narrow enough to maneuver around flower beds and trees. You won’t feel like you’re pushing a tank.
  • Self-Propelled Drive (Variable Speed) – This is a rear-wheel drive system with a trigger-style speed control on the handle. Squeeze harder for faster ground speed, ease off for slower. It’s intuitive and responsive, though it takes a few passes to find your sweet spot.
  • 6.0Ah PWR CORE 40 Battery – That’s a high-capacity battery for this price range. Expect 45–60 minutes of runtime under normal conditions, which easily covers a 1/4-acre lawn. The 40V platform also works with other SKIL tools, so you can share batteries.
  • Auto PWR JUMP Charger – This charger is unusually fast. It can top up the 6.0Ah battery in about 45 minutes, which is half the time of many competitors. If you have multiple batteries, you can swap and keep mowing.
  • Single Lever Height Adjustment (1.5–4 Inches) – One lever adjusts all four wheels simultaneously. It’s a small detail, but it saves you from crouching at each wheel. The range covers everything from a tight 1.5-inch cut to a tall 4-inch setting for St. Augustine or fescue.
  • 3-in-1 Functionality (Mulch, Bag, Side Discharge) – The included bag is a 1.5-bushel soft bag that’s easy to empty but on the smaller side. Mulching performance is decent, though not as fine as a dedicated mulching blade. Side discharge is available with an optional chute.
  • Foldable Handle with Storage Hook – The handle collapses without tools, and the mower stands upright for vertical storage. The storage hook lets you hang it on a wall, saving garage floor space.

Pros

  1. Excellent value for the kit – At $349, you get a self-propelled mower, a 6.0Ah battery, and a fast charger. That’s $100–$150 less than comparable kits from premium brands.
  2. Fast charging is a game-changer – The 45-minute charge time means you can mow, charge during lunch, and finish the yard in one afternoon without waiting all day.
  3. Strong power delivery – The brushless motor doesn’t bog down in thick grass. It’s not as torquey as a 60V or 80V system, but for a 40V mower, it punches above its weight.
  4. Easy to push and maneuver – The self-propulsion is smooth and variable, and the 20-inch deck feels nimble around obstacles. It’s not heavy (around 50 lbs with battery), so you can lift it over edging or rocks.
  5. Simple, tool-free adjustments – Height adjustment is one lever, the handle folds easily, and the bag attaches without fuss. No tools required for any of it.
  6. Quiet operation – At roughly 80 decibels, you can mow early on a Saturday without waking the neighbors. No earplugs needed.

Cons

  1. Bag capacity is small – The 1.5-bushel bag fills up fast, especially in lush spring growth. If you bag clippings, plan on emptying it every 5–10 minutes on a typical lawn.
  2. Self-propulsion can be jerky at low speed – The trigger control is smooth at medium-to-fast speeds, but at the slowest setting, it can feel a bit on/off. It takes practice to finesse.
  3. No headlight – This is a minor gripe, but if you mow in the early morning or evening, you’ll need a separate light. Many competitors at this price include one.
  4. Plastic deck feels less durable than steel – The deck is reinforced plastic, which is fine for residential use and keeps weight down, but it won’t survive a direct hit on a rock as well as a stamped steel deck would.

Bottom Line

The SKIL PWR CORE 40 20-Inch Self-Propelled Mower is one of the best battery mower values on the market right now. It delivers reliable power, genuine self-propulsion, and a fast-charging battery system at a price that undercuts most rivals by a significant margin. It’s not perfect—the small bag and slightly jerky low-speed drive are honest trade-offs—but for homeowners with a 1/4 to 1/3 acre lawn who want to ditch gas without spending $500+, this is the mower to buy. Highly recommended.

Frequently Asked Questions

Q: How long does the battery last on a full charge?
A: Expect 45–60 minutes of runtime with the included 6.0Ah battery under normal conditions. That covers roughly 1/4 acre of grass. If you’re mulching heavy, damp grass, runtime drops to about 35–40 minutes.

**Q: Can I use a larger battery from other SK

How It Compares

Quick Verdict

The SKIL PWR CORE 40 wins overall for most buyers thanks to its self-propelled drive, larger cutting deck, and superior battery system, but the Greenworks 40V is the better value for budget-conscious owners of small, flat lawns.

Side-by-Side Comparison

Feature MOWER A: SKIL SM4910C-11 MOWER B: Greenworks 40V 16" Push
Price $349.00 $249.99
Power Source 40V brushless, 6.0Ah battery 40V brushless, 4.0Ah battery
Cutting Width 20 inches 16 inches
Self-Propelled Yes No (push only)
Best Yard Size Up to ¾ acre Up to ⅓ acre
Warranty 5-year tool, 2-year battery 4-year tool, 2-year battery

Where SKIL Wins

1. Self-Propelled Drive Saves Effort on Slopes or Large Yards
The SKIL’s variable-speed self-propelled system is a game-changer for yards over ¼ acre or any property with hills. You simply squeeze the bar and the mower moves forward—no pushing required. The Greenworks is a pure push mower, which becomes exhausting on medium-to-large lawns or uneven terrain.

2. Larger 20-Inch Deck Cuts Faster
With a 20-inch cutting width versus the Greenworks’ 16 inches, the SKIL covers roughly 25% more grass per pass. On a ⅓-acre lot, that translates to 10–15 fewer minutes of mowing per session. It also handles taller, thicker grass better without bogging down.

3. Superior Battery and Charging System
The SKIL includes a 6.0Ah battery (50% more capacity than the Greenworks’ 4.0Ah) and the exclusive Auto PWR JUMP charger, which can fully recharge in about 60 minutes—roughly half the time of standard chargers. This means less downtime and the ability to finish larger yards on a single charge.

Where Greenworks Wins

1. Significantly Lower Price
At $249.99, the Greenworks is $100 cheaper than the SKIL. For buyers on a tight budget or those with a small, flat lawn, that’s a meaningful savings. It’s one of the best-priced 40V mowers on the market with proven reliability (over 11,000 reviews).

2. Lighter and More Maneuverable for Tight Spaces
Without a self-propelled system and with a narrower deck, the Greenworks weighs roughly 10–15 pounds less than the SKIL. It’s easier to lift, turn around flower beds, and store in a small shed. For yards with lots of obstacles (trees, garden edges), the lighter push design can actually be faster than wrestling a self-propelled unit.

3. Proven Track Record with Massive User Base
With nearly 12,000 reviews and a 4.2-star rating, the Greenworks has a far larger sample of real-world feedback. It’s also part of Greenworks’ 75+ tool battery platform, so if you already own Greenworks 40V tools (trimmers, blowers, chainsaws), you can share batteries. The SKIL’s battery platform is smaller and newer by comparison.

Which Should You Buy?

Buy Mower A (SKIL) if:

  • Your lawn is bigger than ¼ acre or has any slopes—the self-propelled drive and larger 6.0Ah battery will save you time and sweat.
  • You want to cut faster with fewer passes thanks to the 20-inch deck.
  • You value fast recharging and longer runtime for a single mowing session.

Buy Mower B (Greenworks) if:

  • You have a small, flat lawn under â…“ acre and want to spend as little as possible.
  • You already own Greenworks 40V tools and want battery compatibility.
  • You prefer a lightweight, easy-to-maneuver push mower for tight, obstacle-filled yards.

Skip both if:
You have more than ¾ acre of grass—consider a 60V or gas model with a larger battery and wider deck for that job.

Quick Verdict

The SKIL PWR CORE 40 wins overall for most buyers due to its superior cutting width, self-propelled convenience, and higher power, making it a better value for medium-sized yards despite the higher price.

Side-by-Side Comparison

Feature SKIL SM4910C-11 WORX WG779
Price $349.00 $229.47
Power Source 40V brushless (1x 6.0Ah battery) 20V brushless (2x batteries, capacity not specified)
Cutting Width 20 inches 14 inches
Self-Propelled Yes No (push mower)
Best Yard Size Up to 1/3 acre Small yards under 1/8 acre
Warranty 5-year limited 2-year limited

Where SKIL Wins

  1. Self-propelled drive system – The SKIL features a self-propelled mechanism, which significantly reduces user effort on slopes or larger lawns. The WORX is a manual push mower, requiring full physical effort to move it across the grass. This is a critical advantage for anyone with a yard over 5,000 sq ft or uneven terrain.

  2. Larger cutting width (20 inches vs. 14 inches) – The SKIL’s 20-inch deck covers 43% more area per pass than the WORX’s 14-inch deck. This translates to fewer passes, faster mowing time, and less fatigue—especially important for medium-sized yards. The WORX’s narrow width is better suited for tight spaces but inefficient for open lawns.

  3. Higher voltage and larger battery capacity – The SKIL uses a 40V system with a 6.0Ah battery, providing more torque and runtime for thick grass and larger areas. The WORX uses two 20V batteries (likely 2.0Ah or 4.0Ah each), which may require swapping mid-mow for yards over 2,500 sq ft. The SKIL also includes an Auto PWR JUMP charger for faster recharging.

Where WORX Wins

  1. Lower price and better value for small yards – At $229.47, the WORX is $120 cheaper than the SKIL. For owners of tiny lawns (under 2,500 sq ft), this represents significant savings without sacrificing basic mowing capability. The WORX includes two batteries, which is useful for smaller spaces where runtime is less critical.

  2. Lighter weight and easier storage – The WORX is a compact, lightweight push mower that folds down for vertical storage. Its 14-inch deck makes it easy to maneuver around flower beds, tight corners, and narrow gates. The SKIL, being self-propelled with a larger deck, is heavier and bulkier to store.

  3. Higher user review count and proven reliability – The WORX has 7,071 reviews (vs. 132 for SKIL), indicating a longer track record and tested reliability. While the SKIL has a slightly higher rating (4.5 vs. 4.1), the WORX’s massive review base suggests consistent performance for small-yard owners.

Which Should You Buy?

Buy Mower A (SKIL) if: You have a medium-sized yard (1/4 to 1/3 acre), need self-propelled assistance on slopes or uneven ground, and want faster mowing with fewer passes thanks to the 20-inch cutting width. It’s the better choice for homeowners who mow weekly and prioritize efficiency over upfront cost.

Buy Mower B (WORX) if: You have a small yard (under 2,500 sq ft), tight spaces or narrow gates, and prefer a lightweight, easy-to-store mower. The WORX is ideal for budget-conscious buyers who don’t need self-propulsion and want a proven, compact model for basic trimming and maintenance.

Buy neither if: Your yard is larger than 1/3 acre or very hilly. In that case, consider a gas-powered mower or a higher-end 60V/80V model with a wider deck (e.g., EGO 21-inch self-propelled).

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Last updated: June 2026