Upgraded Replacement for Greenworks 40V 4.0Ah
4.3Editor score
Wide tool compatibility
Extended runtime capacity
Triple certified safety
In this guide
Finding a reliable power source is essential for maintaining your outdoor equipment efficiently. A high-quality battery ensures consistent performance across various cordless tools without frequent interruptions during critical tasks.
We evaluated ten top-rated replacements based on capacity, safety features, compatibility, and user feedback. Our analysis focuses on genuine and third-party options that meet strict industry standards for durability.
Each selection highlights unique benefits to help you choose the right fit for your specific tools. Please note that pricing and availability may vary over time due to market conditions and retailer promotions.
Top 3 Picks for Best Greenworks 40V Battery Replacement
Greenworks 40V 4.0Ah Lithium-Ion Battery
4.5Editor score
Fade-free power delivery
Integrated LED fuel indicator
Built-in safety safeguards
Greenworks 40V 4.0Ah USB Lithium-Ion Battery
4.4Editor score
USB charging port included
Quick charge capability
Genuine manufacturer quality
Top 10 Best Greenworks 40V Battery Replacement in 2026 Compared
This side-by-side comparison details the specifications and key attributes of each selected battery replacement to help you make an informed decision for your equipment needs.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Greenworks 40V 4.0Ah Lithium-Ion Battery
Voltage 40V
Capacity 4.0Ah
75+ Compatible Tools
Fade-free Power
4.5Editor score
Editor's Choice
Upgraded Replacement for Greenworks 40V 4.0Ah
Voltage 40V
Capacity 4.0Ah
Gen 2 Tools Only
UL FCC ROHS Certified
4.3Editor score
Best Premium
4.0Ah High Capacity Battery Replacement for 40v Greenworks Battery and Charger
Voltage 40V
Capacity 4.0Ah
Includes Charger Combo
Multi-layer Protection
1 Pack 29472 Battery Replacement for Greenworks 40V Battery 6000mAh(Green)
Voltage 40V
Capacity 6.0Ah
4-level LED Indicator
Quick-release Design
4.5Editor score
2Pack 40V 4.0Ah Battery Replacement for Greenworks 40V Battery and Charger
Voltage 40V
Capacity 4.0Ah
Includes Dual-Port Charger
Gen 2 Tools Only
4.3Editor score
1Pack 6.0Ah 40V Battery Replacement for Greenworks 29462 29252
Voltage 40V
Capacity 6.0Ah
CE RoHS FCC Certified
High-strength Housing
4.1Editor score
6.5Ah 40V Battery and Charger Compatible with Greenworks 40V
Voltage 40V
Capacity 6.5Ah
Includes USB Port
Rapid Charger Included
5.0Editor score
2 Pack 40V 6000mAh Replacement for Greenworks 40V Battery 6.0Ah (Black)
Voltage 40V
Capacity 6.0Ah
Gen 2 Tools Only
4 LED Indicators
4.4Editor score
TREE.NB 6.0Ah 40V 29472 Lithium Battery Replacement for GreenWorks 40V G-MAX Li-ion Battery 29472 29462 2901319 Power Tools 24282 24252 21332 25322 20672 2101602 20312
Voltage 40V
Capacity 6.0Ah
Fuel Gauge Included
Microchip Protection
4.0Editor score
Greenworks 40V 4.0Ah USB Lithium-Ion Battery (Genuine Greenworks Battery / 75+ Compatible Tools)
Voltage 40V
Capacity 4.0Ah
USB Charging Port
120 Minute 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
Fade-free Power
No Memory Loss
Fuel Indicator Light
Safety Safeguards
This genuine battery delivers fade-free power and no memory loss, earning a strong 4.5-star rating. Its integrated LED fuel indicator helps you monitor charge levels accurately for optimal performance.
Pros
- Genuine manufacturer quality
- Compatible with 75+ tools
- Reliable performance
- No memory loss issues
- Strong safety features
Cons
- Higher price point
- Heavier than some alternatives
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The built-in battery management system protects against overheat and short circuit risks ensuring safe operation across your 75+ compatible tools. It is designed for total freedom of movement without tangled cables.
While it carries a premium price compared to third-party options, the reliability and longevity often justify the cost. Users appreciate the consistent power output during heavy-duty tasks.
Ideal for professionals and homeowners who prioritize tool longevity and safety. This battery remains the top choice for those seeking an original equipment manufacturer replacement.
Consistent Power Output
The G-MAX 40V technology ensures that power delivery does not fade as the battery depletes maintaining efficiency throughout your work session.
Safety First Design
Multiple safeguards including over-voltage and over-current protection prevent damage to both the battery and your connected power tools.
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2. Upgraded Replacement for Greenworks 40V 4.0Ah – Best Budget Greenworks 40V Battery Replacement
Upgraded Replacement for Greenworks 40V 4.0Ah
4000mAh Capacity
Triple Certified Safe
Gen 2 Compatible
Efficient Heat Dissipation
This affordable replacement offers 4000mAh capacity with triple safety certification making it a top budget choice. It fits second-generation 40V tools ensuring smooth operation for mowers and trimmers.
Pros
- Affordable pricing
- UL FCC ROHS certified
- Extended runtime
- Stable power output
- 24/7 customer support
Cons
- May not fit Gen 1 tools
- Slightly shorter life span
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Its precision interface and efficient heat dissipation design maintain optimal temperatures for longer service life. The LED indicator clearly shows remaining battery level and real-time charging status.
Although it is cheaper than genuine options, users should verify tool generation compatibility before purchase. The service warranty provides additional peace of mind for buyers.
Perfect for DIYers needing extra batteries for multiple tasks without breaking the bank. It delivers stable consistent power output for cordless tools effectively.
Certified Safety Standards
Six-fold safety protection including overcharge and short circuit safeguards ensures secure operation during heavy-duty use.
Wide Tool Compatibility
Reliably powers lawn mowers trimmers blowers and various cordless garden tools for consistent operation.
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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
USB Charging Port
120 Minute Charge
Genuine Quality
G-MAX System
This premium model features a unique USB charging port alongside genuine battery cells for superior performance. It charges in 120 minutes and integrates seamlessly with the G-MAX system.
Pros
- USB port for devices
- Fast charge time
- Reliable performance
- Genuine battery cells
- Compatible with 75+ tools
Cons
- Highest price range
- Compatible only with G-MAX
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The design allows easy snaps in and out of tools enhancing convenience during extended yard work. It delivers fade-free power with no memory loss after charging cycles.
While the cost is higher, the USB functionality adds significant value for outdoor events or remote work. Buyers should confirm compatibility with G-MAX 40V tools specifically.
Recommended for users who want authentic quality and extra features like device charging. It offers a complete yard work solution with one battery system.
USB Device Charging
Built-in USB port lets you charge devices during outdoor work adding versatility to your power setup.
Quick Charge Efficiency
A quick charge time of 120 minutes means less waiting and more time spent on tasks.
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4. 1 Pack 29472 Battery Replacement – Best Capacity Greenworks 40V Battery Replacement
1 Pack 29472 Battery Replacement for Greenworks 40V Battery 6000mAh(Green)
6.0Ah Capacity
4-level LED Indicator
Quick-release Button
Heat Release Holes
This replacement offers a substantial 6.0Ah capacity with integrated four-level LED battery charge indicators. It ensures safer use with multiple protection types like over-charge and over-discharge safeguards.
Pros
- High 6.0Ah capacity
- Clear battery monitoring
- Easy installation
- Multiple protection types
- Compatible with Gen 2
Cons
- Shorter warranty period
- Not for Gen 1 tools
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Surrounding heat release holes accelerate battery cooling for better thermal management during extended operation. The easy-to-use design snaps in and out of tools quickly for convenience.
Users appreciate the higher amp-hour rating compared to standard replacements providing extended runtime for larger jobs. Compatibility is limited to second-generation tools which requires verification.
Best suited for homeowners needing longer power between charges for larger lawns. The high capacity provides extended runtime and long-lasting performance for your tools.
Enhanced Battery Life
The 6.0Ah capacity provides extended runtime allowing you to complete more tasks without interruption.
Thermal Management
Surrounding heat release holes accelerate battery cooling keeping the unit safe during operation.
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5. 2Pack 40V 4.0Ah Battery Replacement – Best Value Greenworks 40V Battery Replacement
2Pack 40V 4.0Ah Battery Replacement for Greenworks 40V Battery and Charger
2-Pack Bundle
Includes Dual Charger
4 LED Indicators
Gen 2 Compatible
This bundle includes two batteries and a dual-port charger offering great value for multiple tools. The battery features four LED indicators that display remaining power or charging status at a touch.
Pros
- Two batteries included
- Dual-port charger
- Good price per unit
- LED status indicators
- 12 months warranty
Cons
- Third-party manufacturing
- Compatible only with Gen 2
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Compatible with second-generation 40V tools it ensures stable performance for lawn mowers and trimmers. The intelligent protection system guards against damage from over-charging or short circuits.
While it is a third-party option users report reliable performance over time. The dual charger allows faster recharging cycles improving workflow efficiency.
Ideal for households with multiple garden tools needing simultaneous charging. It provides longer run time and long-lasting performance for your equipment.
Dual Charging Port
The charger has a built-in LED indicator showing real-time charging progress for easy tracking of both units.
Battery Monitoring
Four LED indicators that display remaining power or charging status at the touch of a button helping plan work wisely.
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6. 1Pack 6.0Ah 40V Battery Replacement – Best Durability Greenworks 40V Battery Replacement
1Pack 6.0Ah 40V Battery Replacement for Greenworks 29462 29252
6.0Ah Capacity
High-strength Housing
CE RoHS FCC Certified
Quick-release Button
This replacement features a high-strength composite housing for exceptional durability and strong resistance to damage. Its 6.0Ah capacity minimizes interruptions by reducing the risk of power depletion.
Pros
- High 6.0Ah capacity
- Durable composite material
- Certified safety
- Easy installation
- 24-hour support
Cons
- Higher price for third-party
- Limited tool compatibility
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Precision molded for a perfect fit with original tools and chargers ensuring smooth operation during heavy use. Four LED indicator lights help users monitor remaining battery power effectively.
Certified by CE RoHS and FCC it meets security testing standards for reliable power delivery. While third-party it offers robust build quality suitable for rugged environments.
Recommended for users needing a durable replacement for specific 29462 29252 tools. It is built to last under demanding conditions.
Rugged Construction
Housing is constructed from high-strength composite materials offering exceptional durability and strong resistance to damage.
Certified Safety
The product is CE RoHS and FCC certified ensuring it meets security testing standards.
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7. 6.5Ah 40V Battery and Charger – Best Extended Runtime Greenworks 40V Battery Replacement
6.5Ah 40V Battery and Charger Compatible with Greenworks 40V
6.5Ah Capacity
Includes Rapid Charger
Built-in USB Port
ECP Chip Protection
This bundle features an impressive 6.5Ah capacity offering extended run time and consistent performance for your tools. It includes a rapid charger and built-in USB port for added utility during outdoor work.
Pros
- Highest capacity option
- Rapid charger included
- USB port feature
- Strong protection chip
- Money-back guarantee
Cons
- Shorter warranty than genuine
- Not compatible with Gen 1
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The ECP chip prevents overcharge and overdischarge issues to extend lifespan significantly. LED gauge shows charging status clearly ensuring users know when power is ready.
With a worry-free service offering money-back guarantees users can try it risk-free. Compatibility is limited to second-generation tools which should be verified before buying.
Perfect for professionals requiring long battery life without frequent recharges. It delivers reliable power output for demanding outdoor projects.
Extended Power Duration
40V 6500mAh lithium battery offers extended run time and consistent performance for Greenworks 40V tools.
Smart Protection
ECP chip prevents overcharge and overdischarge to extend lifespan for your power tools.
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8. 2 Pack 40V 6000mAh Replacement – Best Kit Greenworks 40V Battery Replacement
2 Pack 40V 6000mAh Replacement for Greenworks 40V Battery 6.0Ah (Black)
2-Pack Bundle
6.0Ah Capacity
LED Indicators
High-quality Cells
This 2-pack offers two high-quality batteries with 6000mAh capacity for lasting power. Build with high quality cells and stable protective system it prevents battery from over-charge or short-circuit.
Pros
- Two high-capacity batteries
- Stable protective system
- Prevents overheat
- Easy status monitoring
- Long working time
Cons
- Third-party product
- Compatible only with Gen 2
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Four LED indicators for users to monitor power display remaining run time and reduce risk of downtime work promptly. You receive ample power for multiple yard tasks without extra purchases.
Users appreciate the bulk value allowing rotation of batteries for continuous work. It is designed for long-time working ensuring stable output during heavy use.
Best for homeowners with multiple garden tools needing reliable power simultaneously. The capacity provides more last long time and more powerful performance.
Bulk Power Value
Two high-quality batteries with 6000mAh capacity providing more last long time and more powerful performance.
Downtime Reduction
Display remaining run time and reduce the risk of downtime work and promptly remind you that you need to charge.
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9. TREE.NB 6.0Ah 40V 29472 Replacement – Best Interface Greenworks 40V Battery Replacement
TREE.NB 6.0Ah 40V 29472 Lithium Battery Replacement
6.0Ah Capacity
Fuel Gauge Included
Microchip Protection
Precise Interface
This replacement includes an on-board fuel gauge for accurate power monitoring during operations. It is upgraded to 6000mAh providing high capacity battery work time for 40V tools.
Pros
- Integrated fuel gauge
- High capacity power
- Prevents overcharging
- Precise design
- Longer tool life
Cons
- Some model exclusions
- Limited to Gen 2
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Precision interface design ensures a perfect fit with original tools. Four LED indicator lights display battery power helping you control your time more wisely.
Integrated microchip prevents overcharging and short circuits extending battery and tool life. Compatibility notes indicate it does not fit all 21-inch lawn mowers.
Ideal for users wanting precise power management and reliable performance. The high capacity ensures longer time on the job.
Precise Fit
Precision interface design ensures a perfect fit with original tools and chargers.
High Capacity Power
Upgraded to 6000mAh the high capacity battery can works for your 40V tools much more time.
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10. Greenworks 40V 4.0Ah USB Lithium-Ion Battery – Best Genuine Option Greenworks 40V Battery Replacement
Greenworks 40V 4.0Ah USB Lithium-Ion Battery
Genuine Manufacturer
USB Port Feature
Quick Charge 120min
Fade-free Power
This genuine unit offers fade-free power with no memory loss after charging ensuring reliable work. Its unique USB charging port adds versatility for charging devices while working.
Pros
- Original equipment quality
- USB charging capability
- Fade-free performance
- Compatible with 75+ tools
- Strong warranty support
Cons
- Premium price point
- Limited to G-MAX systems
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Quick charge time of 120 minutes reduces downtime for faster returns to yard tasks. Compatible only with G-MAX 40V tools and charger it guarantees seamless integration.
The high performance lithium-ion design delivers consistent output for all your connected equipment. Users find the USB feature convenient for remote tasks outside the garage.
Recommended for those prioritizing manufacturer standards and unique connectivity. It offers complete yard work solution with one battery system effectively.
Convenient Design
Easy to use design snaps in and out of tools with USB charging port for added convenience.
System Compatibility
Compatible Only with G-MAX 40V tools and charger BAF704 29482 ensuring seamless integration.
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Buying Guide – How to Choose the Best Greenworks 40V Battery Replacement
Selecting the right battery replacement requires evaluating compatibility capacity safety and warranty details carefully to ensure your tools operate efficiently.
Voltage Compatibility
Always ensure the battery matches your tools voltage rating such as 40V for Greenworks systems to prevent damage or poor performance. Mismatched voltages can cause tool malfunction or permanent battery damage.
Check your existing tool models to confirm the exact voltage required before making a purchase decision.
Capacity and Runtime
Higher capacity measured in Ah means longer runtime for demanding tasks like mowing or pruning without frequent stops. Consider your average work duration to select an appropriate capacity level.
Opt for higher capacity options if you need to complete larger jobs without interruptions.
Charger Compatibility
Verify if the new battery works with your existing charger or if a new one is included in the bundle. Incompatible chargers can lead to longer charging times or safety risks.
Choose batteries that match your current charging setup or come with a bundled charger.
Safety Certifications
Look for certifications like UL FCC or RoHS that indicate the battery meets safety and quality standards. These ensure protection against overheating short circuits and overcharging events.
Prioritize certified products to minimize risks during operation and charging.
Genuine vs. Third-Party
Genuine batteries offer guaranteed compatibility and durability but may cost more than third-party alternatives. Third-party options can be cost-effective if they meet safety standards and offer good reviews.
Decide based on budget and your trust in manufacturer versus third-party reliability.
Tool Generation Compatibility
Many modern batteries only fit second-generation tools so confirm model numbers before buying. Using incompatible batteries can result in poor fit or damage to the tool interface.
Always verify the tool generation supported by the replacement battery.
Warranty and Support
A solid warranty and responsive customer service protect your investment against defects or performance issues. Look for at least a one-year guarantee and clear return policies.
Choose sellers offering strong support to resolve any issues quickly.
Physical Design
Ergonomic designs with LED indicators help you monitor charge levels and reduce interruption during tasks. Easy-to-use features like snap-on mechanisms speed up tool changes.
Select batteries with convenient features like LED lights and ergonomic shapes for better usability.
How to Use and Care for Your Greenworks 40V Battery Replacement
Store your battery in a cool dry place away from direct sunlight to maintain optimal chemical stability. Extreme heat or moisture can degrade performance and reduce overall lifespan.
Charge the battery using only compatible chargers to avoid safety hazards or connection issues. Regularly inspect contacts for debris or damage before each use.
Allow the battery to rest after heavy use to prevent overheating. Follow manufacturer guidelines for charging cycles to maximize longevity.
Frequently Asked Questions
Can I use a third-party battery replacement for Greenworks 40V tools?
Yes but verify compatibility with your tool generation and check for safety certifications. Third-party options can be cost-effective but may vary in performance.
How long does a Greenworks 40V battery typically last?
With proper care most batteries last two to three years depending on usage. Higher capacity units may offer longer runtimes but need careful handling.
Do all 40V batteries work with the same chargers?
Not always as some chargers are designed for specific generations or models. Check compatibility details before purchasing a replacement battery or charger.
What safety features should I look for in a replacement battery?
Look for overcharge short circuit and overheat protections along with UL or FCC certifications. These features ensure safer operation and prevent damage to tools.
Is it safe to use a battery with higher capacity than original?
Generally yes but ensure voltage and physical dimensions match your tools requirements. Higher capacity may mean longer runtime but could be slightly heavier.
How do I know if my tool is Gen 1 or Gen 2?
Check the model number on your tool or compare physical features like connector type. Most modern tools are Gen 2 which may require specific battery models.
Final Thoughts on Choosing the Best Greenworks 40V Battery Replacement
Whether you choose genuine OEM or third-party replacements prioritize safety compatibility and capacity needs for your yard equipment. Our top picks offer reliable performance and protection.
Consider the specific features like USB charging or LED indicators that best match your workflow requirements. Balancing budget and quality will help maximize tool efficiency.
Please verify current prices and availability since market conditions vary frequently. Always check compatibility details before completing your purchase for a perfect fit.