Upgraded Replacement for Greenworks 40V 4.0Ah Lithium Ion Battery
4.3Editor score
Certified safety protections
Extended runtime capacity
Precision interface design
In this guide
Finding the right power source for your cordless garden equipment is crucial for maintaining efficiency during outdoor tasks. A reliable battery ensures your tools run smoothly without unexpected interruptions. When your original unit wears out, choosing a compatible replacement becomes essential for continuing your yard work seamlessly.
We evaluated ten leading options based on capacity, safety features, and tool compatibility. Our analysis focuses on models that deliver consistent power and long service life. Each product was selected to help you find a solution that fits your specific Greenworks 40V tool ecosystem without compromising performance.
Every pick in this list highlights key strengths and potential limitations to help you decide. We provide detailed breakdowns of specifications and real-world performance expectations. Please note that availability and pricing can change frequently, so check the latest details before making your final purchase decision.
Top 3 Picks for Best Greenworks 40V Battery Replacement
Greenworks 40V 4.0Ah Lithium-Ion Battery
4.5Editor score
Genuine OEM quality
Fade-free power delivery
75 plus tool compatibility
Greenworks 40V 4.0Ah USB Lithium-Ion Battery
4.4Editor score
Integrated USB charging port
Quick charge time
Complete yard work solution
Top 10 Best Greenworks 40V Battery Replacement in 2026 Compared
This side-by-side comparison helps you quickly identify the right battery for your needs. We highlight key specifications like capacity, compatibility, and safety features across all ten top-rated models.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Greenworks 40V 4.0Ah Lithium-Ion
Voltage: 40V
Capacity: 4.0Ah
OEM Genuine Part
75+ Tool Compatible
4.5Editor score
Editor's Choice
Upgraded Replacement 40V 4.0Ah
Voltage: 40V
Capacity: 4.0Ah
Gen 2 Tools Only
UL FCC Certified
4.3Editor score
Best Premium
4.0Ah High Capacity Replacement
Voltage: 40V
Capacity: 4000mAh
Wattage: 160Wh
LED Indicator Included
1 Pack 29472 Battery 6000mAh
Voltage: 40V
Capacity: 6.0Ah
Battery Type Lithium Ion
Heat Release Holes
4.5Editor score
2Pack 40V 4.0Ah Battery
Voltage: 40V
Capacity: 4.0Ah
Double Pack Value
Charger Included
4.3Editor score
1Pack 6.0Ah 40V Battery
Voltage: 40V
Capacity: 6.0Ah
Wattage: 240Wh
CE RoHS Certified
4.1Editor score
6.5Ah 40V Battery and Charger
Voltage: 40V
Capacity: 6.5Ah
Wattage: 260Wh
USB Port Included
5.0Editor score
2 Pack 40V 6000mAh
Voltage: 40V
Capacity: 6.0Ah
Double Pack Set
Black Color Option
4.4Editor score
TREE.NB 6.0Ah 40V Lithium
Voltage: 40V
Capacity: 6.0Ah
Microchip Protection
Fuel Gauge Feature
4.0Editor score
Greenworks 40V 4.0Ah USB
Voltage: 40V
Capacity: 4.0Ah
Built-in USB Port
120 Min Charge
4.4Editor score
1. Greenworks 40V 4.0Ah Lithium-Ion Battery – Best Overall Greenworks 40V Battery Replacement
Greenworks 40V 4.0Ah Lithium-Ion Battery
Genuine OEM Manufacturer
Fade-Free Power Output
Integrated Fuel Indicator
75 Plus Tools
This genuine Greenworks battery stands out as the top choice for users prioritizing reliability and original equipment quality. With a 4.5 rating, it promises fade-free power and no memory loss after charging, ensuring consistent performance across your garden tools. The integrated LED fuel indicator provides immediate feedback on your battery status, allowing you to plan your work effectively without interruptions.
Pros
- Original equipment quality assurance
- No memory loss after charging
- Built-in BMS safeguards
- Wide tool compatibility range
- LED state feedback system
Cons
- Higher price than third-party
- Limited to 4.0Ah capacity
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The standout feature is its compatibility with over 75 Greenworks tools in the same voltage series. This flexibility means you can invest in one battery platform that powers mowers, trimmers, and blowers without tangled cables. The built-in battery management system protects against overheating, short circuits, and over-charge conditions, enhancing safety during heavy-duty use.
While it is priced higher than third-party options, the durability and guaranteed fit justify the investment for many professionals. Some users might find the 4.0Ah capacity limiting for all-day tasks, but for most residential yard work, it offers sufficient runtime. The fade-free power delivery ensures your tools maintain peak performance until the battery is nearly depleted.
If you value long-term reliability and seamless integration with your existing Greenworks ecosystem, this is the ideal replacement. It is best suited for users who want peace of mind knowing their tool runs with the manufacturer's intended specifications. We recommend choosing this for critical tasks where downtime is not an option.
Unmatched Tool Compatibility
The ability to work with over 75 tools means you can streamline your battery collection. This reduces the need for multiple charging systems and simplifies storage in your garage or shed.
Advanced Safety Protections
The BMS ensures your battery and tools stay safe from electrical faults. Overheat and short circuit safeguards prevent damage that could lead to costly repairs or safety hazards.
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2. Upgraded Replacement for Greenworks 40V 4.0Ah Lithium Ion Battery – Best Budget Greenworks 40V Battery Replacement
Upgraded Replacement for Greenworks 40V 4.0Ah Lithium Ion Battery
4000mAh Capacity
Gen 2 Tools Only
UL FCC ROHS Certified
6-Fold Safety Protection
This upgraded replacement offers an excellent balance of performance and affordability for Greenworks tool owners. With a 4000mAh capacity, it delivers stable and consistent power output for various cordless garden tools. The battery is certified by UL, FCC, and ROHS, ensuring it meets high safety standards for electrical components and user protection during operation.
Pros
- Affordable price point
- Extended runtime capability
- Triple certified safety
- Precision interface design
- 24-hour customer service
Cons
- Not for Gen 1 tools
- Third-party brand variance
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Its precision interface ensures steady power output, while the efficient heat dissipation design maintains optimal battery temperature. This helps prolong the lifespan of both the battery and your tools. The integrated LED indicator clearly shows remaining battery levels and charging status, giving you real-time monitoring capabilities during your work sessions.
The main limitation is that it fits second-generation 40V tools only, so check your model before purchasing. While it may not match the longevity of OEM parts, it provides reliable performance for most weekend landscaping needs. The 12-month quality problem-solving time adds extra confidence for budget-conscious buyers.
This is the top budget pick for those who need a functional replacement without paying a premium. It suits users with Gen 2 tools who want extended runtime at a lower cost. If you prioritize value over original branding, this replacement delivers consistent performance for trimmers and blowers.
Extended Runtime Performance
The high-capacity cells allow for longer operation between charges. This means fewer interruptions for recharging and more time completing your yard tasks efficiently.
Triple Certified Safety
Being UL, FCC, and ROHS certified ensures the battery meets rigorous safety guidelines. This certification reduces risks of overheating or electrical failures during heavy use.
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3. Greenworks 40V 4.0Ah USB Lithium-Ion Battery – Best Premium Greenworks 40V Battery Replacement
Greenworks 40V 4.0Ah USB Lithium-Ion Battery
Genuine OEM OEM
Built-in USB Port
120 Min Charge Time
75+ Tools
This premium battery combines original equipment quality with modern convenience features like a built-in USB port. It delivers fade-free power with no memory loss, ensuring consistent performance for your yard work. The quick charge time of 120 minutes allows for rapid refills between tasks, minimizing downtime during busy gardening seasons.
Pros
- Integrated USB charging capability
- Original equipment reliability
- Fade-free power delivery
- One battery system for tools
- Quick charge time
Cons
- Higher price point
- Limited to 4.0Ah
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The USB port lets you charge devices while you work, adding utility beyond tool power. This makes it versatile for users who need to keep their phones or lights charged in remote areas. The easy-to-use design snaps in and out of tools seamlessly, enhancing the overall user experience during installation.
Although it shares the same capacity as the standard model, the USB feature adds significant value for tech-savvy users. Some might find the price higher than necessary if they do not use the USB port, but the genuine quality is always an asset. It is a premium solution for those who want the best convenience available.
If you want a replacement that offers the most flexibility and genuine performance, this is the best choice. It suits users who value original design and extra features like USB charging. We recommend it for professionals or homeowners who need reliable power and device charging capabilities.
USB Charging Convenience
The USB port adds utility beyond tool power. You can charge your phone or small devices directly from the battery while working outdoors without needing extra gear.
Quick Charge Time
With a 120-minute charge time, you get back to work quickly. This rapid refill ensures that downtime is minimized during your yard work routines.
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4. 1 Pack 29472 Battery Replacement for Greenworks 40V Battery 6000mAh – Best High-Capacity Greenworks 40V Battery Replacement
1 Pack 29472 Battery Replacement for Greenworks 40V Battery 6000mAh
6.0Ah High Capacity
Gen 2 Tools Only
4-Level LED Indicator
Over-Protection
This replacement battery offers a substantial 6.0Ah capacity, which extends runtime for heavy-duty garden tasks. The integrated 4-level LED battery charge indicator allows you to monitor usage effectively. Its quick-release design and heat release holes help maintain cooling and ease of use, ensuring the battery performs well under stress.
Pros
- Extended runtime capacity
- Heat release design
- 4-level charge indicator
- Compatible with G-MAX
- Snaps in easily
Cons
- Not for Gen 1 tools
- Third-party variance
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The battery is compatible with Greenworks 40V G-MAX tools, providing reliable power for mowers and trimmers. Its protection features cover short-circuit, over-charge, and over-temperature scenarios, adding safety layers. The surrounding heat release holes accelerate cooling, which helps maintain stability during prolonged use.
Users should note it is designed for Gen 2 tools only, so compatibility check is essential. While it is a third-party option, the 4.5 rating suggests high user satisfaction with its performance. The higher capacity is ideal for users who find 4.0Ah insufficient for large yards.
If you need longer run times without changing tools, this 6.0Ah model is a strong candidate. It suits users with large properties who value extended operation. We recommend it for those prioritizing capacity and heat management in their battery setup.
Extended 6.0Ah Runtime
The higher 6.0Ah capacity means longer operation between charges. This is crucial for large yards where recharging breaks your workflow.
Smart Cooling Design
Heat release holes help maintain optimal temperatures. This ensures consistent performance and prevents overheating during heavy tasks.
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5. 2Pack 40V 4.0Ah Battery Replacement for Greenworks 40V Battery and Charger – Best Value Set Greenworks 40V Battery Replacement
2Pack 40V 4.0Ah Battery Replacement for Greenworks 40V Battery and Charger
Double Pack Value
Includes Dual-Port Charger
4.0Ah Each
Gen 2 Tools Only
This set offers excellent value by including two batteries and a charger, perfect for continuous yard work. With 4.0Ah capacity each, you can rotate batteries to keep going without long wait times. The batteries feature 4 LED indicators, helping you track power levels precisely before work starts.
Pros
- Charger included in set
- Two batteries for rotation
- LED indicators on both
- Gen 2 compatible
- 12-month support
Cons
- Third-party product
- Charger specifics vary
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The charger supports Gen 2 tools, which is the current standard for most Greenworks users. Having two batteries means no downtime for recharging; one charges while the other is in use. The high-quality cells provide intelligent protection against over-charging and short circuits, ensuring safety.
The main trade-off is that this is a third-party bundle, so the charger and battery may differ slightly from OEM specifications. For most users, the convenience of rotation outweighs minor differences. It is a practical solution for maintaining consistent workflow.
If you want a complete solution with spare power, this 2-pack is ideal. It suits busy users who cannot afford interruptions. We recommend it for those needing a full setup replacement for their garden tools.
Double the Work Power
Having two batteries means you can work while one charges. This rotation capability maximizes uptime for your yard tasks.
Built-In Monitoring
Each battery has 4 LED indicators. This precise monitoring helps you plan charging times effectively.
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6. 1Pack 6.0Ah 40V Battery Replacement for Greenworks 29462 29252 – Best Capacity Greenworks 40V Battery Replacement
1Pack 6.0Ah 40V Battery Replacement for Greenworks 29462 29252
6000mAh Capacity
High-Pressure Molds
CE RoHS Certified
Quick Release Button
This replacement battery delivers 6000mAh capacity, significantly extending runtime for large yard jobs. It features high-precision molds for a perfect fit with original tools, ensuring reliable connection. The quick-release button allows easy installation and removal, which adds convenience during tool changes.
Pros
- 6.0Ah runtime
- High-precision molds
- Quick-release mechanism
- Comprehensive protection
- 30-day repayment
Cons
- Slightly lower rating
- Third-party quality
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Safety is a priority here with built-in microchip protection for heat, charge, and current. CE, RoHS, and FCC certifications ensure it meets security standards. The 4 LED indicator lights display remaining runtime, helping minimize work interruptions and providing timely recharge reminders.
The product offers 30-day repayment options and one-year exchange services, adding purchase confidence. While the rating is slightly lower than others, the capacity and features remain competitive. It is a solid choice for those prioritizing long use over original branding.
If you need high capacity and easy handling, this model is a great fit. It suits users who want to avoid frequent charging. We recommend it for those needing maximum operation time per charge.
High-Precision Mold Fit
Precision molds ensure the battery fits securely. This reduces connection issues and maintains stable power delivery.
LED Runtime Monitoring
The LED indicators help track remaining runtime. This prevents unexpected power loss during your tasks.
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7. 6.5Ah 40V Battery and Charger Compatible with Greenworks 40V – Best Charger Greenworks 40V Battery Replacement
6.5Ah 40V Battery and Charger Compatible with Greenworks 40V
6500mAh Battery
2.0 AMP Rapid Charger
USB Port Included
29472 Compatible
This model stands out with a 6500mAh capacity, the highest in this list, offering extended run time. The included 2.0 AMP rapid charger efficiently refills the battery. The ECP chip prevents overcharge and overdischarge, extending the lifespan significantly for long-term use.
Pros
- Highest capacity 6.5Ah
- USB port convenience
- Rapid charger included
- ECP chip protection
- Perfect 5.0 rating
Cons
- Higher price
- Third-party origin
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The USB port lets you charge devices during outdoor work, adding utility beyond tool power. It is compatible with Gen 2 G-MAX tools, which covers most current models. The 5.0 rating reflects user satisfaction with its performance and reliability for yard work.
While it is a third-party combo, the high capacity and charger inclusion make it a strong package. Some users may find the cost higher, but the capacity justifies it for large properties. It provides a complete solution for power and device charging.
If you want maximum runtime and a convenient charger, this is the top pick. It suits users needing long operation and device charging. We recommend it for those prioritizing capacity and versatility.
Rapid Charger Included
The 2.0 AMP charger ensures fast refills. This means less waiting and more time working outdoors.
Device Charging USB Port
The USB port charges your devices while you work. It adds extra utility for outdoor tasks.
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8. 2 Pack 40V 6000mAh Replacement for Greenworks 40V Battery 6.0Ah – Best Dual High-Capacity Greenworks 40V Battery Replacement
2 Pack 40V 6000mAh Replacement for Greenworks 40V Battery 6.0Ah
Double 6.0Ah Set
6000mAh Capacity
Black Color Option
Gen 2 Tools Only
This set offers two 6000mAh batteries, providing massive capacity for extensive yard work. The 4 LED indicators allow users to monitor power levels precisely. It is designed for Gen 2 tools, ensuring compatibility with current Greenworks models. The high capacity triples run time compared to smaller batteries.
Pros
- Double high-capacity
- Extended runtime
- 4 LED indicators
- Stable protection system
- Dual battery rotation
Cons
- Third-party origin
- Charger not included
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The batteries feature a stable protective system preventing over-charge and short-circuit issues. This safety ensures they remain reliable during heavy use. The black color option adds a sleek look, and the consistent output helps maintain tool performance.
Note that this set does not include a charger, so you must use an existing one. Despite this, the capacity and quantity make it a value deal for users needing backup power. It reduces downtime by allowing you to swap batteries freely.
If you need two high-capacity batteries without buying OEM, this is ideal. It suits users with large properties. We recommend it for those prioritizing total runtime across multiple batteries.
Double High Capacity
Having two 6000mAh batteries gives you significant runtime. This supports long tasks without frequent recharging breaks.
Stable Safety Systems
The protection system ensures stable operation. This prevents failures and keeps your tools safe during use.
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9. TREE.NB 6.0Ah 40V 29472 Lithium Battery – Best Compatible Greenworks 40V Battery Replacement
TREE.NB 6.0Ah 40V 29472 Lithium Battery
6000mAh Capacity
On-board Fuel Gauge
Gen 2 Tools
Integrated Microchip
This battery offers 6000mAh capacity, providing extended run time for 40V tools. The on-board fuel gauge integrated LED indicator helps you monitor usage effectively. It fits Gen 2 tools perfectly, ensuring reliable power for various garden equipment like mowers and trimmers.
Pros
- Precise interface design
- Fuel gauge indicator
- Extended runtime
- Over-current protection
- High capacity
Cons
- Not for Gen 1
- Mixed reviews on fit
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The built-in microchip prevents overcharging and self-discharge, extending battery life. Exothermic holes speed up cooling, which helps maintain performance during heavy work. The snap-in design ensures easy installation and removal without tools.
While the rating is lower than others, the capacity and design features are competitive. Some users report fit issues, but most find it reliable. It is a good value if you can verify compatibility with your specific tool model.
If you need high capacity and easy monitoring, this model is a strong choice. It suits users needing long runtime. We recommend it for those prioritizing capacity and fuel gauge convenience.
On-Board Fuel Gauge
The LED fuel gauge helps you track battery levels. This prevents unexpected power loss during tasks.
Precision Interface
The design ensures a secure fit. This reduces connection problems and improves reliability.
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10. Greenworks 40V 4.0Ah Lithium-Ion Battery – Best OEM Greenworks 40V Battery Replacement
Greenworks 40V 4.0Ah Lithium-Ion Battery
OEM Genuine Part
40V Voltage
Fade-Free Power
Battery Management
This genuine battery provides fade-free power with no memory loss, ensuring consistent tool performance. It is compatible with over 75 Greenworks tools in the same voltage, offering great flexibility. The battery management system protects against overheat, short circuit, and over-charge, enhancing safety.
Pros
- Original equipment quality
- Wide tool compatibility
- No memory loss
- Integrated fuel indicator
- Over-charge safeguards
Cons
- Higher price than alternatives
- Fixed 4.0Ah capacity
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The integrated LED fuel indicator gives immediate feedback on battery state, helping you plan work. It is a reliable OEM part that fits seamlessly into existing tool systems. This makes it ideal for users who trust original manufacturer specifications.
The main trade-off is cost; it is more expensive than third-party options. However, the durability and guaranteed safety are often worth the premium. Users with critical tools should consider this for long-term reliability.
If you prioritize original quality and compatibility, this is the best OEM choice. It suits users needing reliability. We recommend it for those wanting the manufacturer's standard performance.
True OEM Reliability
Being an original part ensures perfect fit and safety. This reduces risks of tool damage and improves performance.
Universal Tool Fit
The compatibility with 75+ tools means one battery works everywhere. This simplifies your equipment management.
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Buying Guide – How to Choose the Best Greenworks 40V Battery Replacement
Choosing the right battery replacement requires balancing compatibility, capacity, and safety. Here are the key factors to consider.
Voltage Compatibility
Ensure the battery is 40V to match your tools. Using a different voltage can damage equipment and void warranties. Always check your tool model before purchasing.
Check your tool label for voltage requirements.
Capacity and Runtime
Higher capacity like 6.0Ah offers longer runtime than 4.0Ah. Consider the size of your yard and how long you need to work before recharging.
Choose higher capacity for larger properties.
Safety Certifications
Look for UL, FCC, or CE certifications. These ensure the battery meets safety standards for heat and electrical protection during use.
Certified batteries reduce fire and damage risks.
Tool Compatibility
Check if the battery supports Gen 1 or Gen 2 tools. Many replacements work only with newer generation tools. Verify your model number.
Match your tool generation to avoid fit issues.
Charger Inclusion
Some packs include a charger, others do not. This affects total cost and convenience. Decide if you need a new charger.
Confirm charger inclusion before purchase.
Battery Type
Most are Lithium-Ion, which offer better performance. Avoid older Ni-Cad options for longevity. Ensure the type matches your needs.
Lithium-Ion is standard for modern tools.
Warranty and Support
Check for 12-month warranties. Quality sellers offer 24-hour support. This protects you if the battery fails early.
Look for strong warranty coverage.
Price vs. Quality
Third-party options are cheaper but vary in quality. OEM parts are pricier but guaranteed. Balance your budget with reliability needs.
Choose based on your value priorities.
How to Use and Care for Your Greenworks 40V Battery Replacement
Store the battery in a cool, dry place to prevent degradation. Avoid extreme heat or cold which can damage cells. Always keep contacts clean and dry.
Charge fully before first use to optimize performance. Use only compatible chargers. Do not leave on charger indefinitely to avoid damage.
Inspect regularly for cracks or swelling. Replace immediately if damage is found. Handle with care during insertion into tools.
Frequently Asked Questions
Will a 40V replacement fit my Gen 1 tool?
Most modern replacements fit Gen 2 tools only. Check the compatibility list before buying. Some older models need specific OEM batteries.
What is the typical lifespan of a replacement battery?
Lifespan depends on usage but averages 2-3 years. Proper storage and charging extend life. Third-party may vary slightly.
Can I use third-party batteries safely?
Yes, if they are certified by UL or CE. Check for safety features like overheat protection. Reputable brands are generally safe.
How do I know the battery is fully charged?
LED indicators show charge status. Green light usually means full. Follow charger instructions for accurate status.
Is a higher Ah always better?
Higher Ah means more runtime but adds weight. Balance based on your tool's capacity. 6Ah offers longer use than 4Ah.
Do I need a new charger for third-party batteries?
No, most work with existing Greenworks chargers. Verify voltage matches. Some packs include chargers for convenience.
What should I do if the battery won't charge?
Check connections and clean contacts. Ensure charger is functional. If issues persist, contact customer support.
Final Thoughts on Choosing the Best Greenworks 40V Battery Replacement
We found the Greenworks Genuine Battery offers the best overall balance of reliability and compatibility. It suits those needing peace of mind with original specs.
For budget-conscious users, the Upgraded Replacement provides strong value with solid performance. Choose based on your specific tool needs.
Always check current availability and prices as they change frequently. Verify compatibility before purchase to ensure a perfect fit.