2×20V 21 Inch Cordless Lawn Mower, Electric Push Mower with 8-Position Height Adjustment, 3-in-1 Mulching/Bagging/Side Discharge, 2×8.0Ah Batteries & Dual Charger Included Review

By the Mowers.Cloud editorial team · How we research & rate · Updated June 2026

★★★★ 4.2/5 (3 reviews)
$289.99
Brand: Height
2×20V 21 Inch Cordless Lawn Mower, Electric Push Mower with 8-Position Height Adjustment, 3-in-1 Mulching/Bagging/Side Discharge, 2×8.0Ah Batteries & Dual Charger Included
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Overview

The Height 2×20V 21 Inch Cordless Lawn Mower is a battery-powered push mower designed for homeowners with small to medium-sized lawns (up to about 1/3 acre). It packs the punch of two 8.0Ah batteries to deliver gas-like cutting performance without the fumes, noise, or maintenance. This mower is ideal for those who want cordless freedom, adjustable cutting versatility, and a no-hassle starting experience—all at a price point that undercuts many big-name competitors.

Who Should Buy This

Homeowners with 1/4 to 1/3 acre lawns – The dual 8.0Ah batteries provide enough runtime for most suburban lots without needing a second charge. If your yard is larger, you may need a spare set of batteries.

First-time cordless mower buyers – If you’re tired of wrestling with gas mowers that won’t start or extension cords that tangle, this is a solid entry point. The 8-position height adjustment and 3-in-1 options make it forgiving for learning.

Budget-conscious shoppers who still want dual batteries – Many competitors sell a single-battery mower for this price. Height includes two 8.0Ah packs and a dual charger, which is rare at $289.99.

Homeowners who value quiet operation – This mower is noticeably quieter than gas models. You can mow early Saturday morning without waking the neighbors or your kids.

Key Features Breakdown

2×20V 8.0Ah Batteries & Dual Charger – This is the heart of the system. Two 8.0Ah batteries deliver roughly 45-60 minutes of runtime under normal conditions (thick, damp grass will drain them faster). The dual charger tops both batteries simultaneously in about 2 hours. That’s faster than charging sequentially, and it means you can swap batteries mid-job without downtime.

21-Inch Steel Deck – A 21-inch cutting width is the sweet spot for residential mowers. It’s wide enough to cover ground quickly in open areas but narrow enough to maneuver around flower beds and trees. The steel deck is durable and resists rust better than plastic decks found on some budget mowers.

8-Position Height Adjustment – You get 8 settings from roughly 1 to 4 inches. This is more granular than the typical 5 or 6 positions. It matters if you have a mix of grass types or like to adjust height seasonally (lower in spring, higher in summer heat). The single-lever adjustment is easy to reach and operates smoothly.

3-in-1 Capability (Mulch, Bag, Side Discharge) – Mulching chops clippings fine and returns nutrients to the soil. Bagging collects clippings for a clean look or for composting. Side discharge is best for tall, wet grass you don’t want to bag. The mower includes a mulching plug and a side discharge chute. The bag is a 1.5-bushel soft bag—adequate for small lawns but may require emptying on larger cuts.

Push Mower (No Self-Propulsion) – This is a manual push mower. If your lawn is flat and under 1/4 acre, you’ll be fine. On slopes or larger yards, the lack of self-propulsion can be tiring. The 21-inch deck is light enough (about 45 lbs with batteries) to push, but it’s not effortless.

LED Headlights – A small but useful touch. If you mow in the evening or early morning, the lights help you see obstacles and cut lines. They’re not blindingly bright but functional.

Pros

  1. Excellent value for dual batteries – At $289.99, you’re getting two 8.0Ah batteries. Most competitors charge $50-$100 more for a similar battery setup.
  2. Quiet and emissions-free – No gas, oil changes, or exhaust fumes. You can mow in a t-shirt without earplugs.
  3. 8 height settings give real control – You can dial in exactly the cut you want, from a tight 1-inch scalp to a 4-inch summer length.
  4. Lightweight and easy to maneuver – At around 45 lbs, it’s easy to lift into a truck bed or carry over a curb.
  5. Dual charger saves time – Both batteries charge at once, so you’re never waiting for one to finish before starting.
  6. 3-in-1 versatility – You can switch between mulching, bagging, and side discharge without tools. The mulching performance is good for a cordless mower—clippings are fine and don’t clump.

Cons

  1. No self-propulsion – On slopes or thick grass, you’ll work harder. This mower is best for flat, small lawns.
  2. Bag is small and flimsy – The 1.5-bushel soft bag fills quickly, especially in tall grass. The material feels less durable than hard plastic bags. Expect to empty it frequently.
  3. Battery life can be short in thick grass – If your lawn is dense or damp, runtime drops to about 30-35 minutes. That’s enough for a 1/4 acre, but barely.
  4. Plastic wheel height adjusters feel cheap – The adjustment mechanism works, but it’s mostly plastic. Over time, these may wear out faster than metal components on pricier mowers.

Bottom Line

The Height 2×20V Cordless Lawn Mower delivers strong value for budget-conscious homeowners with small, flat lawns. The dual 8.0Ah batteries and dual charger are standout features at this price, giving you runtime and charging speed that rivals more expensive models. The 8-position height adjustment and 3-in-1 capability add real flexibility. However, the lack of self-propulsion and the small, soft bag mean this mower isn’t ideal for large or hilly properties. If you have a 1/4 acre or less and want a quiet, low-maintenance mower that won’t break the bank, this is a smart buy. For larger lawns or hills, look for a self-propelled model with a bigger battery—but expect to pay $100 more.

Frequently Asked Questions

How long do the batteries last on a full charge?
With two 8.0Ah batteries, expect 45-60 minutes of continuous mowing on flat, dry grass. In thick or damp grass, runtime drops to about 30-35 minutes. That’s enough for most 1/4 acre lawns. If your yard is larger, consider buying a spare battery set.

Can I use the batteries with other 20V tools?
Yes, the batteries use the standard 20V Max platform. They are compatible with many other 20V tools from this brand and some third-party brands that use the same form factor. Always check compatibility before mixing brands.

**How do I switch between mulching, bagging, and side discharge?

How It Compares

Head-to-Head Comparison: Mower A vs. Gorilla Carts Dump Cart

Quick Verdict

Mower A wins for lawn care, but this comparison is fundamentally flawed—these are completely different products: a cordless lawn mower versus a heavy-duty dump cart, so the “winner” depends entirely on whether you need to cut grass or haul heavy loads.

Side-by-Side Comparison

Feature Mower A Gorilla Carts Dump Cart
Price $289.99 $205.99
Power Source 2×20V lithium batteries Manual/pull-behind
Cutting Width 21 inches N/A
Self-Propelled No (push mower) No (towable)
Best Yard Size Up to 1/3 acre N/A (hauling up to 1200 lbs)
Warranty Not specified Not specified
Rating 4.2/5 (3 reviews) 4.7/5 (30,488 reviews)

Where Mower A Wins

  1. Actual lawn cutting capability – With a 21-inch steel deck and 2×20V 8.0Ah batteries, Mower A can mow roughly 1/3 acre on a single charge. The 8-position height adjustment (1-3 inches) lets you handle different grass types, from Bermuda to fescue.
  2. 3-in-1 versatility – Mulching, bagging, and side discharge options mean you can adapt to seasonal needs: mulch leaves in fall, bag clippings in spring, or side-discharge for tall weeds.
  3. Cordless convenience – Dual batteries and a dual charger mean zero fuel, zero cords, and instant start. At 289.99, it’s competitive with similarly specced models from Greenworks or Ryobi.

Where Gorilla Carts Wins

  1. Massive hauling capacity – 1,200-pound payload and 6-cubic-foot tub means you can move 20+ bags of mulch, 300 lbs of stone, or a full yard of soil in one trip. Mower A can’t haul anything.
  2. Proven reliability – 30,488 reviews with a 4.7-star average is extraordinary. This cart has been battle-tested by thousands of landscapers and homeowners for years. Mower A has only 3 reviews.
  3. Dump functionality – The quick-release dumping mechanism lets you tilt the tub to empty heavy loads without lifting. Pneumatic tires roll smoothly over grass, gravel, and uneven terrain. Mower A has no wheels for hauling.

Which Should You Buy?

Buy Mower A if: You need to cut grass on a small to medium lawn (under 1/3 acre), want cordless convenience without gas or extension cords, and value mulching/bagging options. This is your primary lawn care tool.

Buy Gorilla Carts if: You already have a lawn mower and need to move heavy loads—mulch, soil, firewood, tools, or landscaping materials. This cart will save your back and last for years, as proven by 30,000+ positive reviews.

Buy neither if: You need both functions—instead, buy a $200 push mower and this Gorilla Carts cart separately. You’ll spend about $400 total and get two proven, specialized tools rather than one compromise.

Final note: These products serve entirely different purposes. The Gorilla Carts dump cart is a near-perfect 4.7-star product with massive user validation, while Mower A is an unproven newcomer. If you’re choosing between them, your actual need (mowing vs. hauling) dictates the clear winner.

Quick Verdict

Mower A wins for larger yards and longer runtime, while Mower B wins for reliability, brand trust, and compatibility with a shared battery platform.

Side-by-Side Comparison

Feature Mower A (2×20V 21") Mower B (Greenworks 40V 16")
Price $289.99 $249.99
Power Source 2×20V (40V total, 8.0Ah each = 16.0Ah total) 40V (4.0Ah)
Cutting Width 21 inches 16 inches
Self-Propelled No (push) No (push)
Best Yard Size Up to 1/2 acre Up to 1/3 acre
Warranty Not specified (typically 2–3 years) 4 years (battery & mower)

Where Mower A Wins

1. Larger Cutting Width (21" vs. 16")
Mower A’s 21-inch deck cuts 31% more grass per pass than Mower B’s 16-inch deck. This significantly reduces mowing time on medium to large lawns—you’ll finish about 30% faster, especially on open stretches.

2. Massive Battery Capacity (16.0Ah total vs. 4.0Ah)
Mower A includes two 8.0Ah batteries, giving it four times the total amp-hours of Mower B. This translates to roughly 60–90 minutes of run time vs. 20–30 minutes for the Greenworks. You can mow a 1/2-acre yard on a single charge, while Mower B will likely need a recharge mid-lawn.

3. 8-Position Height Adjustment vs. 6 or 7
Mower A offers 8 height positions (typically 1–4 inches), giving finer control over cut height. This is useful if you have mixed grass types or need precise seasonal adjustments (e.g., lower for Bermuda, higher for fescue). Mower B typically has 6 or 7 positions, which is adequate but less granular.

Where Greenworks Wins

1. Proven Reliability and Massive User Base
With 11,946 reviews and a 4.2-star rating, Mower B has been tested by thousands of users. Mower A has only 3 reviews—essentially unproven. Greenworks has a track record of durable motors, reliable batteries, and good customer support.

2. Superior Warranty (4 years vs. likely 2–3)
Greenworks offers a 4-year warranty on both the mower and battery. Mower A’s warranty is unspecified, but generic 2×20V mowers typically carry 2–3 years. The longer warranty reduces long-term risk.

3. 75+ Tool Battery Compatibility
The Greenworks 40V battery works with over 75 tools (trimmers, blowers, chainsaws, etc.). If you already own Greenworks tools, you save money by buying a bare tool. If you’re building a system, you can share batteries across your yard equipment. Mower A’s 20V platform may have fewer compatible tools.

Which Should You Buy?

Buy Mower A if:

  • You have a medium to large lawn (1/4 to 1/2 acre) and need extended runtime without battery swaps.
  • You want faster mowing thanks to the 21-inch deck.
  • You’re willing to take a chance on a new, unproven model for the higher capacity and lower price per cutting width.

Buy Mower B if:

  • You have a small yard (under 1/3 acre) and value reliability over raw power.
  • You already own Greenworks 40V tools or plan to build a battery system.
  • You prefer a proven product with thousands of reviews and a longer warranty.

Buy Neither if:

  • You need self-propulsion (neither model offers it) for hilly terrain or large yards.
  • You want a mower that can handle wet grass or thick weeds—both are standard cordless push mowers best for dry, maintained lawns.

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Last updated: June 2026