2 Pack 8.0Ah Replacement Battery for Greenworks 24 Volt Battery Lawn Mower 29842 29852 29322 LB24A020 Compatible with Greenworks 24V Cordless Tools Review

Name: 2 Pack 8.0Ah Replacement Battery for Greenworks 24 Volt Battery Lawn Mower 29842 29852 29322 LB24A020 Compatible with Greenworks 24V Cordless Tools
Brand: Greenworks
Price: 69.99 USD
Availability: InStock

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

★★★★ 4.1/5 (15 reviews)

$69.99

Brand: Greenworks

2 Pack 8.0Ah Replacement Battery for Greenworks 24 Volt Battery Lawn Mower 29842 29852 29322 LB24A020 Compatible with Greenworks 24V Cordless Tools

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Overview

This 2-pack of 8.0Ah replacement batteries is designed specifically for Greenworks 24V cordless lawn mowers and tools, including models 29842, 29852, 29322, and LB24A020. It’s a practical solution for homeowners who already own Greenworks 24V equipment and need extended runtime, backup power, or a fresh set after their original batteries have worn out. If you’re tired of your mower dying mid-lawn or want to keep a spare charged for larger yards, this bundle delivers solid value at a competitive price.

Who Should Buy This

Homeowners with 1/4 to 1/2 acre lawns – If your yard falls in this range, one 8.0Ah battery can handle most of the job, but having a second ensures you never stop halfway through. Switch batteries and keep mowing without waiting for a recharge.

Greenworks 24V tool owners – If you already own a Greenworks 24V string trimmer, blower, or hedge trimmer, these batteries are cross-compatible. Stocking up on two high-capacity packs simplifies your tool ecosystem and reduces downtime.

Budget-conscious buyers replacing worn-out OEM batteries – Original Greenworks batteries can be pricey. At $69.99 for two 8.0Ah packs, this is a cost-effective way to breathe new life into an older mower or tool without buying a whole new unit.

Homeowners who hate gas cans – You’ve already made the switch to cordless electric. These batteries remove the last excuse for not finishing the lawn—no fumes, no pull cords, just swap and go.

Key Features Breakdown

8.0Ah capacity per battery – This is a high-capacity option for the 24V platform. On a Greenworks mower, expect 45–60 minutes of continuous cutting per battery, depending on grass thickness. That’s enough for a typical suburban lawn on a single charge, and the second battery gives you a full backup.

Compatible with multiple Greenworks 24V models – Specifically fits mowers 29842, 29852, 29322, and LB24A020, plus many other 24V tools. Check your model number before buying, but the compatibility list is broad enough for most Greenworks 24V owners.

Lithium-ion construction – No memory effect, low self-discharge, and consistent power output until the battery is nearly empty. You can store them over winter and they’ll still hold a charge come spring.

LED charge indicator – Each battery has a small button and lights to show remaining charge. This is a simple but useful feature—grab the pack with three lights, not one, and you’re set.

Two-pack value – Buying individually, a single 8.0Ah Greenworks-compatible battery often costs $40–50. This two-pack undercuts that by a wide margin, giving you backup power for less than the price of one OEM battery.

Pros

Excellent runtime – 8.0Ah is the largest capacity commonly available for Greenworks 24V tools. Expect to mow a 1/4-acre lawn on one battery with grass to spare.
Affordable two-pack – At $69.99, you’re paying roughly $35 per battery. That’s a steal compared to OEM replacements.
Cross-tool compatibility – Works with Greenworks 24V trimmers, blowers, chainsaws, and more. One set of batteries powers your whole yard crew.
LED charge indicator – No guessing. Press the button, see the lights, know if you need to swap.
No fade performance – Lithium-ion delivers full power until the battery is nearly dead. Your mower won’t slow down as the battery drains.
Lightweight – Each battery weighs about 1.5 pounds. Easy to swap, easy to carry, and won’t weigh down your mower.

Cons

Not genuine Greenworks – These are aftermarket replacements. While many users report good performance, quality control can vary. A small percentage of buyers receive dead-on-arrival units.
Charger not included – You’ll need your existing Greenworks 24V charger. If you don’t have one, factor in that extra cost.
Fit can be tight – A few users note the battery snaps in securely but requires a bit more force than OEM packs. It works, but it’s not buttery smooth.
No warranty from Greenworks – Since these aren’t OEM, you’re relying on the seller’s return policy. Check that before buying.

Bottom Line

This 2-pack of 8.0Ah batteries is a smart, budget-friendly upgrade for anyone already invested in Greenworks 24V equipment. The runtime is generous, the price is hard to beat, and having a spare battery eliminates the biggest frustration of cordless mowing—running out of juice mid-yard. Just be aware these are aftermarket units, so inspect them immediately upon arrival and test them. If they work out of the box, you’ve just doubled your mowing capacity for less than the cost of one OEM battery. For homeowners with 1/4 to 1/2 acre lawns who want reliable backup power without breaking the bank, this is a solid buy.

Frequently Asked Questions

Will these batteries work with my Greenworks 24V mower model 29842?
Yes, the 29842 is explicitly listed as compatible. These batteries are designed to fit that model, along with 29852, 29322, and LB24A020. Always double-check your exact model number, but you’re in good shape.

How long does it take to charge one 8.0Ah battery?
With the standard Greenworks 24V charger, expect about 2–3 hours for a full charge from empty. That’s typical for a battery this size. If you have the fast charger, it’ll be closer to 1.5 hours.

Are these batteries safe to leave on the charger overnight?
Lithium-ion batteries have built-in protection circuits that prevent overcharging, so leaving them on the charger overnight is generally safe. However, for longest battery life, it’s best to unplug once fully charged and store them in a cool, dry place.

How It Compares

Here is a head-to-head comparison of these two products.

Important Note: These are not direct competitors. Mower A is a replacement battery for a Greenworks mower, not a mower itself. Mower B is a complete string trimmer/edger. A true mower vs. mower comparison is not possible here. The comparison below evaluates them as separate solutions: one for powering an existing mower, the other for trimming/edging.

Quick Verdict

Mower A wins for mowing power (if you already own a Greenworks 24V mower), but Mower B wins overall as a complete, ready-to-use tool for lawn maintenance.

Side-by-Side Comparison

Feature	Mower A (2x 8.0Ah Batteries)	Mower B (WG163 String Trimmer)
Price	$69.99	$89.99
Power Source	24V Battery (Replacement)	20V Battery (Included)
Cutting Width	N/A (Battery only)	12 inches
Self-Propelled	No (Battery only)	No (Manual operation)
Best Yard Size	Small to medium (for mower)	Small (for trimming/edging)
Warranty	Unknown (likely 1 year)	3 years (WORX standard)

Where Greenworks (Mower A) Wins

Higher Voltage & Capacity for Mowing: The 24V system with two 8.0Ah batteries provides significantly more runtime and power for cutting grass than a 20V trimmer battery. This is ideal for pushing a lawn mower through thicker grass or larger areas.
Price per Battery Value: At $69.99 for two 8.0Ah batteries, you’re paying roughly $35 per battery. This is a competitive price for high-capacity 24V batteries, especially if you already own a Greenworks mower or other 24V tools.
Direct Compatibility: If you own any of the listed Greenworks 24V mowers (29842, 29852, etc.), these are drop-in replacements. No adapters or modifications needed—just swap and mow.

Where WORX (Mower B) Wins

Complete, Ready-to-Use Tool: Mower B is a fully functional string trimmer and edger. It includes two 20V batteries, a charger, and the tool itself. You can start trimming and edging immediately—no additional purchases required.
Proven Reliability & Ratings: With 27,806 ratings and a 4.4-star average, this trimmer has been tested by tens of thousands of users. It’s a known, reliable product. Mower A has only 15 ratings, making it a much riskier bet.
Command Feed & Edging Feature: The WORX features a push-feed system (Command Feed) that lets you advance the trimmer line without bumping the head. It also converts to an edger with a simple wheel adjustment, adding versatility for lawn borders.

Which Should You Buy?

Buy Mower A if: You already own a Greenworks 24V cordless mower or other 24V tools, and your current batteries are worn out or have short runtime. This is a cost-effective way to restore mowing power without buying a new mower.
Buy Mower B if: You need a string trimmer/edger to finish lawn edges and trim around obstacles. This is a complete, ready-to-run solution with strong reliability, a good warranty, and thousands of positive reviews.
Buy Mower A (with caution) if: You are trying to power a Greenworks mower but don’t own one yet. In that case, you’d need to buy a used or new mower separately. That total cost will likely exceed buying a complete mower+trimming combo.

Final Note: If you need both mowing and trimming, neither product alone is sufficient. Mower A needs a mower body; Mower B only trims/edges. For a balanced lawn care setup, consider a true cordless mower (e.g., WORX or Greenworks 40V/80V) plus a trimmer.

Here is a head-to-head comparison of these two very different lawn mowers.

Quick Verdict

For most homeowners, the American Lawn Mower Company 1415-16 wins overall because it is a proven, reliable, self-powered machine with over 22,000 reviews, while “Mower A” is actually just a replacement battery pack, not a complete mower.

Side-by-Side Comparison

Feature	Mower A (Battery Pack)	Mower B (Reel Mower)
Price	$69.99	$105.00
Power Source	24V Battery (Replacement only)	Human Power (Push reel)
Cutting Width	N/A (Battery only)	16 inches
Self-Propelled	No	No (Manual push)
Best Yard Size	N/A (Battery only)	Up to ¼ acre
Warranty	Not specified	Limited lifetime warranty on frame

Where Greenworks Wins

Electric Convenience (If you already own the mower): If you already have a Greenworks 24V mower (models 29842, 29852, 29322, etc.), this 8.0Ah battery pack is a high-capacity upgrade. It will give you longer runtime per charge than the standard 2.0Ah or 4.0Ah batteries, allowing you to finish a larger lawn without stopping to recharge.
Low Effort (If paired with a mower): Once installed in a compatible Greenworks mower, this battery powers a motor that does all the cutting work. You simply push the mower forward—no physical exertion required to spin the blade, unlike a reel mower.
Battery Versatility: This 24V battery is interchangeable with other Greenworks 24V tools (trimmers, blowers, chainsaws). If you already own that ecosystem, buying a second battery (even just as a spare) is a smart investment for tool flexibility.

Where American Lawn Mower Wins

Zero Operating Costs & Emissions: The reel mower uses no gas, oil, or electricity. It costs nothing to run, never needs a battery replacement (which can cost $50–$100+ every 2–4 years), and produces zero noise or fumes. It’s the most eco-friendly and quiet option available.
Proven Reliability & Reputation: With 22,499 reviews and a 4.3-star rating, this is one of the most trusted manual mowers on the market. The 5-blade, 16-inch cutting design provides a clean, scissor-like cut that is healthier for grass (reduces tearing and browning) compared to rotary blades.
Durability & Simplicity: This mower has no motor, no battery, no belts, and no spark plugs. It’s built with a steel frame and requires only occasional blade sharpening. The limited lifetime warranty on the frame means it can easily last 10–20 years, while the battery in Mower A will degrade and need replacement within 3–5 years.

Which Should You Buy?

Buy Mower A (Battery Pack) if: You already own a Greenworks 24V mower and your current battery no longer holds a charge, or you need a spare to finish a medium-to-large lawn (over ¼ acre) without stopping. This is a replacement part, not a standalone mower. Only buy this if you have the matching tool.

Buy Mower B (Reel Mower) if: You have a small, flat lawn (under ¼ acre) and want a complete, ready-to-use mower that costs nothing to operate. Buy this if you value quiet mornings, zero emissions, low maintenance, and a healthy cut for your grass. It’s also ideal if you’re on a tight budget and don’t want to deal with batteries, chargers, or gas.

Buy Neither if: You are looking for a complete cordless mower for a medium-to-large lawn. Mower A is just a battery, and Mower B is a manual reel mower. For a full electric mower, look for a complete unit (e.g., a Greenworks 24V mower kit with a battery and charger) rather than a replacement battery pack.