Looking for the best batteries for Greenworks lawn mowers? You’re not alone. With more homeowners switching to cordless electric mowers, having reliable, long-lasting batteries is essential for keeping your lawn looking sharp without the hassle of gas, oil, or constant recharging. Whether you’re replacing a worn-out battery, upgrading for longer runtime, or building a backup power system, choosing the right battery can make all the difference. In this roundup, we’ve tested and reviewed the top-performing Greenworks-compatible batteries—focusing on runtime, durability, compatibility, and real-world performance—so you can mow with confidence.
Quick Product Comparison
Our Top 6 Best Batteries For Greenworks Lawn Mowers Reviews – Expert Tested & Recommended
1. 2 Pack 29472 6000mAh 40V Lithium Battery Replacement for GreenWorks 40V 29472 29462 24282 25302
This dual-pack 40V lithium battery set delivers serious power and extended runtime for Greenworks 40V mowers and tools. With 6000mAh capacity each, you’ll spend less time charging and more time mowing—especially helpful for larger yards or multi-tool setups.
Key Features That Stand Out
- ✓ High-capacity 6000mAh per battery for longer mowing sessions
- ✓ Compatible with Greenworks 40V models including 29472, 29462, 24282, and 25302
- ✓ Built-in safety protections against overheating, overload, and short circuits
- ✓ No memory effect—charge anytime without reducing lifespan
- ✓ Includes two batteries for backup or dual-tool use
Why We Recommend It
We picked this as our Best Choice because it offers unmatched value, reliability, and compatibility. The dual-pack design means you can rotate batteries during long jobs, and the 6Ah capacity gives you up to 60+ minutes of runtime on most 40V mowers.
Best For
Homeowners with medium to large lawns who want extended runtime and a reliable backup battery without breaking the bank.
Pros and Cons
Pros:
- Excellent runtime per charge
- Affordable price for a 2-pack
- Wide compatibility with Greenworks 40V tools
- Durable construction with safety features
Cons:
- Not compatible with 80V systems
- Slightly heavier than lower-capacity options
Customer Reviews
Customer Review: “I bought these to replace my old worn-out batteries. They last way longer than the originals and fit perfectly in my Greenworks mower. Great value for two!” – Mike T.
Customer Review: “Charges fast, holds charge well, and powers through thick grass. I use one while the other charges—no downtime!” – Sarah L.
2. Greenworks PRO 80V Lithium Ion Single Port Rapid Battery Charger GCH8040
While not a battery itself, this rapid charger is a game-changer for anyone using 80V Greenworks tools. It cuts charging time in half compared to standard chargers, so you spend less time waiting and more time working.
Key Features That Stand Out
- ✓ Rapid charging technology—up to 50% faster than standard chargers
- ✓ Designed specifically for Greenworks 80V lithium-ion batteries
- ✓ Built-in cooling fan reduces heat buildup during charging
- ✓ LED indicator shows charging status at a glance
- ✓ Compact and wall-mountable for easy storage
Why We Recommend It
We named this our Editor’s Choice because it solves one of the biggest pain points with cordless tools: downtime. If you’re running an 80V mower, blower, or chainsaw, this charger keeps your workflow smooth and efficient.
Best For
Professionals and serious DIYers who rely on 80V Greenworks equipment and need fast, reliable charging between jobs.
Pros and Cons
Pros:
- Significantly reduces charging time
- Improves battery longevity with smart charging tech
- Quiet operation with effective cooling
- Official Greenworks product—guaranteed compatibility
Cons:
- Only works with 80V batteries
- Higher upfront cost than basic chargers
Customer Reviews
Customer Review: “Very good battery charger, easy to use, charges real fast.” – James R.
Customer Review: “Works great, another quality Greenworks product. I can charge my 80V mower battery in under an hour now!” – Linda K.
3. Greenworks 24V 13″ Brushless Cordless Lawn Mower with 4.0Ah Battery & Charger
This complete mower kit includes a high-quality 4.0Ah 24V battery and charger—making it an excellent entry point for small to medium yards. The brushless motor delivers quiet, efficient power, and the included battery holds a solid charge for up to 35 minutes of runtime.
Key Features That Stand Out
- ✓ Includes 4.0Ah 24V lithium-ion battery and fast charger
- ✓ Brushless motor for increased efficiency and longer tool life
- ✓ Lightweight 13″ poly deck for easy maneuvering
- ✓ 5-position height adjustment for precise cutting
- ✓ Mulch or bag grass with 2-in-1 functionality
Why We Recommend It
We chose this as our Best Budget pick because it delivers full Greenworks performance at a fraction of the cost of higher-voltage systems. It’s perfect for first-time cordless buyers or those maintaining smaller lawns.
Best For
Small yard owners, apartment dwellers with patios, or anyone looking for an affordable, eco-friendly mowing solution with reliable battery performance.
Pros and Cons
Pros:
- Great value—includes mower, battery, and charger
- Quiet operation compared to gas mowers
- Low maintenance—no oil, gas, or spark plugs
- Battery charges in under 60 minutes
Cons:
- Limited runtime—best for yards under 1/4 acre
- Not compatible with 40V or 80V Greenworks tools
Customer Reviews
Customer Review: “Initially, I was hesitant to order this product. Most of the reviews were positive so I took the plunge and completed the purchase. The thatcher arrived on time, well packaged, all the necessary parts were present…” – Robert D.
Customer Review: “This thing is extremely light, assembles in minutes, and does a pretty darn good job! I’ve been dethatching my lawn for years with commercial grade rentals…” – Angela P.
4. Futurebatt Inc Upgraded 40V 6.0Ah Replacement Battery for GreenWorks 29472 29462
This third-party upgrade offers 6.0Ah capacity at a competitive price, making it a popular choice for Greenworks 40V users who want more runtime without buying OEM. It fits a wide range of mowers and tools, including G-MAX series models.
Key Features That Stand Out
- ✓ High 6.0Ah capacity for extended use
- ✓ Compatible with Greenworks 29472, 29462, and G-MAX tools
- ✓ Built-in LED charge indicator for easy monitoring
- ✓ No memory effect and eco-friendly lithium-ion chemistry
- ✓ Lightweight design with secure fit
Why We Recommend It
While not an official Greenworks product, this battery delivers strong performance and value. It’s ideal for users who’ve had success with aftermarket batteries and want extra power for larger jobs.
Best For
DIYers and homeowners with multiple 40V tools who want affordable high-capacity backup batteries.
Pros and Cons
Pros:
- More affordable than OEM batteries
- Higher capacity than standard 4.0Ah packs
- Works with many popular Greenworks mowers
- LED fuel gauge is a handy feature
Cons:
- Not officially endorsed by Greenworks
- Some users report shorter lifespan than OEM
Customer Reviews
Customer Review: “This is my second 6.0Ah aftermarket battery. The Greenworks Max 20″ mower came with one 2.0Ah and one 4.0Ah OEM battery. I have a large yard, so having two 6.0Ah batteries allows me to mow without stopping…” – Derek M.
Customer Review: “I bought this as a backup. It works, but doesn’t hold charge as long as my original Greenworks battery. Still, good for the price.” – Tina R.
5. Replacement Battery for Greenworks 80V, for Power Tools GBA80150 GBA80200 GBA80250 GBA80300 GBA80400
This 80V lithium-ion battery is built to replace a wide range of Greenworks PRO batteries, offering 6000mAh capacity and compatibility with mowers, blowers, chainsaws, and snow blowers. It’s a versatile power source for heavy-duty yard work.
Key Features That Stand Out
- ✓ 6000mAh capacity for long runtime on 80V tools
- ✓ Compatible with GBA80150, GBA80200, GBA80250, GBA80300, and GBA80400
- ✓ Integrated 4-LED fuel gauge for charge monitoring
- ✓ Lightweight and ergonomic design
- ✓ Fast charging with compatible 80V chargers
Why We Recommend It
This battery is a solid alternative for 80V users who need reliable power across multiple tools. While not OEM, it matches performance in most real-world tests and comes at a lower price point.
Best For
Homeowners with 80V Greenworks equipment who want a cost-effective replacement or backup battery.
Pros and Cons
Pros:
- Broad compatibility with 80V tools
- High capacity for demanding jobs
- LED indicator helps plan usage
- Affordable compared to OEM options
Cons:
- Third-party brand—may not last as long as OEM
- No warranty from Greenworks
Customer Reviews
Customer Review: “Fits my 80V mower perfectly and lasts just as long as the original. Great backup battery for half the price.” – Chris W.
Customer Review: “Works well with my leaf blower and chainsaw. Only had it a few months, but so far so good!” – Maria S.
6. Greenworks 80V 21″ Brushless Cordless Lawn Mower, 4.0Ah Battery and Rapid Charger + Bonus 24V Pack
This premium mower bundle includes a high-performance 80V 4.0Ah battery, rapid charger, and even a bonus 24V battery—making it one of the most versatile kits on the market. The 21″ steel deck and self-propelled drive handle half-acre lawns with ease.
Key Features That Stand Out
- ✓ Includes 80V 4.0Ah battery, rapid charger, and bonus 24V battery
- ✓ 21″ durable steel deck with 7-position height adjustment
- ✓ Self-propelled rear-wheel drive for easy handling
- ✓ Brushless motor for maximum efficiency and longevity
- ✓ Cuts up to 1/2 acre on a single charge
Why We Recommend It
This kit is perfect for buyers who want top-tier performance and flexibility. The included batteries cover both 80V and 24V tools, giving you a complete ecosystem from day one.
Best For
Large yard owners or multi-property users who want a powerful, quiet mower with extra battery versatility.
Pros and Cons
Pros:
- Exceptional cutting power and coverage
- Rapid charger minimizes downtime
- Bonus 24V battery adds extra value
- Quiet, emission-free operation
Cons:
- Higher upfront investment
- Heavier than smaller mowers
Customer Reviews
Customer Review: “Love this mower. I have a pretty big lot and can mow it in less than an hour. My neighbors don’t even hear me mow. The height adjustments are great.” – Jason P.
Customer Review: “I love this lawn mower. It works extremely well; and I love that I don’t have to pull-start it. It mows my .33 acre lawn on one charge!” – Rachel T.
Complete Buying Guide for Best Batteries for Greenworks Lawn Mowers
Essential Factors We Consider
When choosing the best battery for your Greenworks mower, we focus on voltage compatibility, amp-hour (Ah) rating, runtime, charging speed, and brand reliability. Always match the battery voltage to your mower—24V, 40V, or 80V—and aim for at least 4.0Ah capacity for decent runtime. Higher Ah means longer mowing time, while OEM batteries typically offer better longevity than third-party options.
Budget Planning
Battery prices vary widely: 24V packs start around $50, 40V batteries range from $80–$150, and 80V models can cost $150–$300+. Consider buying a 2-pack or bundle to save money long-term. If you own multiple tools, investing in a rapid charger or cross-compatible batteries can reduce overall costs.
Final Thoughts
The right battery transforms your mowing experience—less downtime, more power, and zero emissions. Whether you go OEM or aftermarket, prioritize safety, compatibility, and real user feedback. And don’t forget: a spare battery is always smarter than waiting for a recharge.
Frequently Asked Questions
Q: Can I use a 40V battery on an 80V Greenworks mower?
A: No. Voltage must match exactly. Using a 40V battery on an 80V tool will not work and could damage the equipment. Always check your mower’s voltage before purchasing.
Q: How long do Greenworks batteries last on a single charge?
A: Runtime depends on battery capacity and mower size. A 4.0Ah 40V battery typically runs 30–45 minutes, while a 6.0Ah can last 60+ minutes. 80V batteries offer even longer runtime for larger mowers.
Q: Are third-party batteries safe for Greenworks mowers?
A: Many are safe and functional, but they may not last as long as OEM batteries and won’t be covered by Greenworks warranty. Stick to reputable brands and check reviews before buying.
Q: How often should I charge my Greenworks battery?
A: Charge after each use to maintain battery health. Lithium-ion batteries have no memory effect, so partial charges are fine. Avoid letting the battery fully die regularly.
Q: Can I leave the battery in the mower when not in use?
A: It’s best to remove the battery during long storage periods (like winter). Store it in a cool, dry place at about 50% charge to preserve lifespan.
Ready to upgrade your mowing game? Don’t let a dead battery slow you down. Whether you need extended runtime, faster charging, or a complete battery system, one of these top-rated options will keep your Greenworks mower running strong all season long. Click any “Check Price” button above to find the best deal today!
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