1 Pack 29472 Battery Replacement
4.5Editor score
6000mAh capacity for extended runtime
Four-level LED charge indicator
Comprehensive safety protection system
In this guide
Finding a reliable power source is essential for maintaining your outdoor equipment. A high-quality battery ensures your tools run efficiently throughout your workday without unexpected interruptions or performance drops during critical tasks.
We evaluated ten top-rated replacements based on compatibility, capacity, safety certifications, and user feedback. Each option was scrutinized to ensure it meets the demands of modern garden and lawn maintenance equipment effectively.
Each pick highlights key strengths and potential trade-offs to guide your decision. Please note that availability and pricing can change frequently, so verify current details before finalizing your purchase decision.
Top 3 Picks for Best Greenworks 40V Battery Replacement
Greenworks 40V 4.0Ah Lithium-Ion Battery
4.5Editor score
Genuine Greenworks brand quality
Compatible with 75+ tools
Integrated fuel indicator system
Greenworks 40V 4.0Ah USB Lithium-Ion Battery
4.4Editor score
Integrated USB charging port
Quick charge in 120 minutes
Fade-free power delivery
Top 10 Best Greenworks 40V Battery Replacement in 2026 Compared
The following table provides a side-by-side comparison of all ten selected replacements. This overview helps you quickly identify key specifications and compatibility details across the different options available.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Greenworks 40V 4.0Ah Lithium-Ion Battery
40V Voltage
4000mAh Capacity
75+ Tool Compatibility
Genuine Brand
4.5Editor score
Editor's Choice
Upgraded Replacement for Greenworks 40V 4.0Ah
40V Voltage
4000mAh Capacity
UL FCC ROHS Certified
Gen 2 Only
4.3Editor score
Best Premium
4.0Ah High Capacity Battery Replacement
40V Voltage
4000mAh Capacity
Includes Charger
Heat Dissipation
4.2Editor score
1 Pack 29472 Battery Replacement
40V Voltage
6000mAh Capacity
4-Level LED
Safety Protection
4.5Editor score
2Pack 40V 4.0Ah Battery Replacement
40V Voltage
4000mAh Capacity
Dual-Port Charger
2 Pack Value
4.3Editor score
1Pack 6.0Ah 40V Battery Replacement
40V Voltage
6000mAh Capacity
CE RoHS FCC
Composite Housing
4.1Editor score
6.5Ah 40V Battery and Charger
40V Voltage
6500mAh Capacity
USB Port Included
Rapid Charger
5.0Editor score
2 Pack 40V 6000mAh Replacement
40V Voltage
6000mAh Capacity
2 Pack Value
4 LED Indicators
4.4Editor score
TREE.NB 6.0Ah 40V Lithium Battery
40V Voltage
6000mAh Capacity
Gen 2 Only
Exothermic Holes
4.0Editor score
Greenworks 40V 4.0Ah USB Lithium-Ion Battery
40V Voltage
4000mAh Capacity
USB Port
Quick Charge
4.4Editor score
1. Greenworks 40V 4.0Ah Lithium-Ion Battery – Best Genuine Replacement
Greenworks 40V 4.0Ah Lithium-Ion Battery
40V 4.0Ah Lithium-Ion
Fade-Free Power Delivery
Integrated LED Fuel Indicator
BMS Safety Safeguards
This genuine Greenworks battery stands out as the Editor's Choice due to its reliability and broad compatibility. With a 4.5-star rating, users appreciate its consistent performance across a wide range of tools.
Pros
- Genuine OEM quality assurance
- Compatible with 75+ tools
- Integrated fuel indicator
- Fade-free power delivery
- Robust battery management system
Cons
- Higher price than alternatives
- Heavier than some options
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The G-MAX 40V system ensures fade-free power without memory loss, meaning your tools perform consistently throughout the charge. The integrated LED fuel indicator provides immediate feedback, so you never run out of power unexpectedly.
While the price point is higher than third-party options, the built-in battery management system offers robust protection against overheating, short circuits, and overcharging. This investment protects your expensive tools from potential damage.
Anyone owning multiple Greenworks tools should consider this battery for its seamless integration. It is the safest bet for those prioritizing longevity and performance over initial cost savings.
Seamless Tool Integration
Designed specifically for the Greenworks ecosystem, this battery snaps easily into tools without fitment issues or connectivity errors.
Advanced Safety Features
The BMS protects against voltage spikes and thermal runaway, ensuring safe operation even during intensive yard work sessions.
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2. 1 Pack 29472 Battery Replacement – Best Budget Option
1 Pack 29472 Battery Replacement
40V 6.0Ah Capacity
4-Level LED Indicator
6-Fold Safety Protection
Easy Install Design
This replacement battery earns the Best Budget badge by offering significant capacity at a competitive price. Users rate it 4.5 stars, highlighting its ability to extend runtime without breaking the bank.
Pros
- Excellent price-to-capacity ratio
- High 6000mAh capacity
- Four-level LED indicator
- Comprehensive safety features
- Quick tool installation
Cons
- Shorter warranty than OEM
- Non-OEM brand
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With 6000mAh of capacity, it delivers extended working time compared to standard 4000mAh models. The four-level LED indicator allows you to monitor charge levels easily, helping you plan your workflow effectively.
Safety is addressed through built-in protections against short circuits, overcharging, and overheating. While it is not an original manufacturer part, the heat release holes ensure it stays cool during heavy use.
Ideal for homeowners looking to maximize runtime on a budget, this battery offers substantial value. It is a smart choice for those willing to try third-party options to save money.
Extended Runtime Capability
The 6000mAh capacity provides significantly more power, allowing you to complete larger projects on a single charge.
Cost-Effective Performance
Priced affordably, this battery delivers performance close to genuine options, making it a smart financial choice.
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3. Greenworks 40V 4.0Ah USB Lithium-Ion Battery – Best Premium Feature
Greenworks 40V 4.0Ah USB Lithium-Ion Battery
Integrated USB Port
40V 4.0Ah Capacity
Quick 120-Min Charge
Fade-Free Power
This premium battery offers a unique USB port feature not found on standard models, earning it a top ranking. Users appreciate the convenience and the reliable performance of genuine Greenworks engineering.
Pros
- Integrated USB charging port
- Quick charge time
- Genuine OEM quality
- Fade-free power delivery
- Convenient tool design
Cons
- Highest price point
- Slightly heavier
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The built-in USB port allows you to charge small devices while working outdoors, adding utility beyond just powering tools. This feature makes it ideal for extended weekend projects or remote work sites.
Quick charging capabilities mean less downtime, as the battery reaches full power in about 120 minutes. The fade-free power ensures consistent output, maintaining tool speed and efficiency throughout the battery cycle.
For those who want the most feature-rich option, this battery is worth the investment. It combines genuine reliability with innovative design elements that enhance the overall user experience.
Convenient USB Charging
Charge your phone or other small electronics directly from the battery using the integrated USB port.
Efficient Power Management
Designed to deliver consistent power, this battery prevents voltage drops even when the charge level is low.
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4. Upgraded Replacement for Greenworks 40V 4.0Ah – Best Value Alternative
Upgraded Replacement for Greenworks 40V 4.0Ah
40V 4000mAh Capacity
Triple Certified Safety
Precision Interface Design
24-Hour Support
This upgraded replacement focuses on safety certifications and customer service, earning a solid 4.3-star rating. It is a strong candidate for those who want peace of mind with third-party options.
Pros
- Triple certified safety
- Wide tool compatibility
- Precision interface fit
- Extended support window
- Competitive pricing
Cons
- Second gen only
- Non-OEM brand
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Certified by UL, FCC, and ROHS, this battery adheres to strict safety standards. The six-fold safety protection system ensures stable operation even under heavy duty conditions, reducing the risk of malfunctions.
The precision interface ensures steady power output and secure connections. Efficient heat dissipation maintains optimal temperature, protecting both the battery and your tools from potential heat-related damage over time.
Anyone seeking a reliable alternative with strong safety credentials should consider this option. The included support service adds further value for users who need assistance with compatibility or usage questions.
Certified Safety Standards
Independent testing confirms this battery meets rigorous safety requirements for electrical and environmental standards.
Robust Customer Support
With a responsive service team available around the clock, you can get help quickly if any issues arise.
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5. 4.0Ah High Capacity Battery Replacement – Best Combo Set
4.0Ah High Capacity Battery Replacement
40V 4000mAh Battery
Included Charger Unit
Real-Time LED Indicator
Factory Tested
This package offers both a battery and a charger, making it a convenient starting point for new tool owners. The 4.2-star rating reflects solid performance for a bundled solution.
Pros
- Battery and charger included
- Real-time charging status
- Factory tested quality
- Industry compliant standards
- 24/7 online support
Cons
- Shorter runtime than 6000mAh
- Charger fitment issues
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The included charger features multi-layer safety protection and efficient heat dissipation. This ensures that charging cycles are safe and effective, extending the overall lifespan of the battery cells.
A built-in LED indicator on both the battery and charger shows real-time status. This visibility helps you manage charging cycles properly, preventing unnecessary overcharging or premature usage.
New users who need a complete charging solution will appreciate this set. It removes the guesswork of finding a compatible charger separately and ensures everything works together seamlessly.
Complete Charging Solution
Get started immediately with both the battery and charger included in a single purchase package.
Smart Charging Tech
The charger monitors voltage levels to prevent overcharging, protecting the battery health during long charging cycles.
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6. 2Pack 40V 4.0Ah Battery Replacement – Best Multi-Pack
2Pack 40V 4.0Ah Battery Replacement
Two Batteries Included
Dual-Port Charger
40V 4000mAh Each
Integrated LED Indicators
This two-pack offers significant value by providing multiple batteries and a dual-port charger. It is designed for users who need continuous operation without waiting for single recharges.
Pros
- Two batteries included
- Dual-port charging
- Extended uptime
- Integrated LED indicators
- Cost effective per unit
Cons
- Large package size
- Second gen only
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With dual batteries, you can swap them out when one runs low, effectively doubling your runtime. The dual-port charger allows you to charge both batteries simultaneously, reducing wait times between tasks.
Each battery features LED indicators for easy monitoring of power levels. This helps you stay organized and ensures you always have a fully charged battery ready for your next project.
Anyone with a fleet of tools or who works on large properties will benefit from this set. The investment in multiple batteries ensures you never face downtime due to a depleted power source.
Continuous Operation
Swap batteries instantly to keep working without interruptions, ideal for large-scale landscaping projects.
Faster Recharge Cycles
Charge both batteries at once with the dual-port charger, getting you back to work faster.
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7. 1Pack 6.0Ah 40V Battery Replacement – Best High Capacity
1Pack 6.0Ah 40V Battery Replacement
40V 6000mAh Capacity
CE RoHS FCC Certified
Precision Mold Design
High-Strength Housing
With 6000mAh capacity, this battery is ideal for heavy-duty tasks that require longer runtimes. Users rate it 4.1 stars, noting its durability and fit with existing tools.
Pros
- High 6000mAh capacity
- Multiple certifications
- Precision mold fit
- Durable housing
- Exchange service offered
Cons
- Weightier than 4000mAh
- Limited brand recognition
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The housing is constructed from high-strength composite materials, offering strong resistance to damage. Precision molds ensure a perfect fit, reducing the risk of loose connections or tool damage during operation.
Built-in microchip protection prevents common failure modes like overheating and over-discharge. The product is CE, RoHS, and FCC certified, indicating compliance with major safety and quality standards.
For professional users or large property owners, this capacity offers practical benefits. It minimizes interruptions and ensures your tools are ready for extended work periods without constant recharging.
Heavy-Duty Durability
Built to withstand tough conditions, this battery protects internal components from physical damage and impact.
Certified Reliability
Third-party certifications give confidence in the battery's safety and performance under various usage scenarios.
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8. 6.5Ah 40V Battery and Charger – Best Capacity Combo
6.5Ah 40V Battery and Charger
40V 6500mAh Capacity
Rapid 2.0A Charger
USB Port Output
ECP Chip Protection
This combination offers the highest capacity in our list, earning a perfect rating from users. It is designed for those who need maximum runtime and a reliable charging solution.
Pros
- Highest capacity option
- Rapid charger included
- USB port for devices
- Perfect rating
- Worry-free service
Cons
- Limited availability
- Premium price point
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The 6500mAh capacity provides exceptional power density, allowing for longer tool operation. The rapid charger supports 2.0A output, ensuring you get back to work quickly after a short charging break.
A built-in USB port adds utility, allowing you to charge mobile devices during outdoor work. This feature makes it versatile for users who need to stay connected while on the job.
Users looking for top-tier performance and convenience will find this option compelling. The comprehensive service assurance further reduces risk, making it a safe choice for demanding applications.
Maximized Runtime
The 6500mAh capacity ensures you can tackle the biggest jobs without worrying about running out of power.
Integrated Connectivity
Stay connected with the built-in USB port, charging your phone or GPS device while you work outside.
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9. 2 Pack 40V 6000mAh Replacement – Best Dual High-Capacity
2 Pack 40V 6000mAh Replacement
Two Batteries Included
6000mAh Each
LED Power Indicators
Stable Protection System
This two-pack combines high capacity with practical redundancy, earning a strong 4.4-star rating. It is an excellent solution for users who cannot afford downtime during critical tasks.
Pros
- Two high-capacity batteries
- Reduced downtime
- Clear LED indicators
- Stable protection system
- Long working times
Cons
- Higher upfront cost
- Storage required
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Each battery offers 6000mAh capacity, more than triples runtime of standard options. Having two units means you can work continuously, keeping one charging while using the other.
The protection system prevents overcharging and overheating, ensuring safe operation over long working sessions. LED indicators help you monitor remaining power levels to prevent unexpected stops.
For professional landscapers or large property owners, this setup ensures reliability. The initial investment pays off through increased productivity and fewer interruptions in your workflow.
Maximized Productivity
With two high-capacity batteries, you can work all day without needing to stop for recharging.
Power Visibility
LED indicators clearly show remaining power, helping you plan breaks and recharging schedules efficiently.
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10. TREE.NB 6.0Ah 40V Lithium Battery – Best Alternative Brand
TREE.NB 6.0Ah 40V Lithium Battery
40V 6000mAh Capacity
Precision Interface
Microchip Safety
Heat Management
This battery offers high capacity and advanced safety features at a competitive price point. With a 4.0-star rating, it provides a solid alternative for budget-conscious buyers.
Pros
- High capacity
- Precision interface
- Heat management
- Comprehensive safety
- Affordable price
Cons
- Mixed user feedback
- Compatibility notes
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Upgraded to 6000mAh, it offers extended working times compared to standard replacements. The onboard fuel gauge helps monitor charge levels, while exothermic holes speed up battery cooling during operation.
Built-in microchip protection prevents common failures like overcharging and short circuits. The precise interface design ensures a snug fit, reducing the risk of poor connectivity issues.
Anyone looking for a functional alternative brand with strong safety specs should consider this option. It balances cost and performance effectively for general yard maintenance tasks.
Enhanced Safety
Built-in microchip protection safeguards against electrical issues, extending the life of your battery investment.
Heat Management
Surrounding exothermic holes allow heat to dissipate efficiently, keeping the battery cool during heavy use.
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Buying Guide – How to Choose the Best Greenworks 40V Battery Replacement
Choosing the right replacement battery requires understanding several key factors. We break down the most important considerations to help you find a compatible and reliable power source.
Voltage Compatibility
Always verify that the replacement battery matches your tool's required voltage. Greenworks tools use the 40V system, and mismatched voltage can damage the tool or cause it to fail.
Ensure the product description explicitly states compatibility with 40V G-MAX tools to avoid purchasing the wrong part for your equipment.
Capacity and Runtime
Battery capacity is measured in amp-hours (Ah). Higher Ah ratings generally mean longer runtime. Consider your typical workload when selecting between 4.0Ah and 6.0Ah options.
For light tasks, a 4.0Ah battery may suffice, but heavy-duty jobs benefit from the extended runtime of a 6.0Ah battery.
Tool Generation
Many replacement batteries are designed for specific generations of tools. Check if the battery fits Gen 1 or Gen 2 tools, as interfaces may differ.
Confirm the generation compatibility listed in the product details to ensure a proper physical fit and electrical connection with your specific tool model.
Safety Certifications
Look for batteries that include built-in protection systems against overcharging, overheating, and short circuits. Certified products are safer and more reliable.
Check for certifications like UL, FCC, or CE to ensure the battery meets recognized safety standards for electrical products.
Brand Origin
Decide between genuine OEM batteries and third-party replacements. Genuine batteries often cost more but offer guaranteed compatibility and warranty.
Third-party options can save money but require careful vetting of reviews and specs to ensure quality and longevity match your needs.
Charging Speed
If your charger is included or if you need to swap batteries often, charging speed becomes important. Faster charging reduces downtime between tasks.
Consider whether you need a rapid charger or if a standard charging cycle fits your workflow better based on your project duration.
LED Indicators
Batteries with fuel gauges or LED indicators help you monitor remaining charge levels. This feature prevents unexpected tool stoppages during work.
Prioritize models with clear indicators if you work on large jobs and need to manage power levels precisely to avoid interruptions.
Warranty and Support
Check the warranty length and customer support options. Reputable sellers offer at least a year of support for replacement batteries.
A clear warranty policy gives you peace of mind in case the battery fails prematurely due to manufacturing defects or other issues.
How to Use and Care for Your Greenworks 40V Battery Replacement
To install the battery, align the contacts on the battery with those on the tool. Slide the battery firmly into place until it clicks, indicating a secure connection.
Charge the battery fully before first use. Connect it to a compatible charger and wait for the LED indicator to show a full charge before powering up your tools.
Store the battery in a cool, dry place when not in use. Avoid leaving it in extreme heat or cold for extended periods to maintain performance and lifespan.
Frequently Asked Questions
Are third-party Greenworks 40V batteries reliable?
Yes, many third-party batteries are reliable if they come from reputable sellers with positive reviews. Look for safety certifications to ensure quality. Always check compatibility notes carefully to confirm they fit your specific tool model generation.
Can I mix different battery capacities with my tools?
Yes, you can use batteries with different capacities as long as they are the same voltage. Higher capacity batteries will simply run longer. Ensure the physical interface matches your tool to avoid connection issues.
How do I know if a battery fits Gen 1 or Gen 2 tools?
Check the product description for specific generation compatibility notes. Gen 2 tools have specific interfaces that may not fit Gen 1 models. Compare your current battery model number with the replacement description.
What does the LED indicator on the battery mean?
LED indicators show the remaining charge level or charging status. Typically, each light represents a percentage of power left. A solid light often means fully charged, while blinking may indicate low battery or charging progress.
Is it safe to leave the battery on the charger overnight?
Most modern batteries have overcharge protection, but it is best to unplug them once fully charged. This prolongs battery life and prevents unnecessary heat exposure. Always follow manufacturer guidelines for best safety practices.
How long should a replacement battery last?
A well-maintained replacement battery can last several years with regular use. Lifespan depends on usage intensity and care. Proper storage and avoiding extreme temperatures help extend the overall service life significantly.
Can I use a non-Greenworks charger with these batteries?
It is generally recommended to use the charger designed for the battery's voltage and brand. Mismatched chargers can cause safety issues or damage. Check compatibility labels before attempting to use alternative chargers.
Final Thoughts on Choosing the Best Greenworks 40V Battery Replacement
We have reviewed the top ten replacements for Greenworks 40V tools, highlighting their unique strengths and practical applications. Each option offers a balance of capacity, safety, and compatibility to meet diverse user needs.
Consider your specific workload and budget when selecting. Genuine batteries offer premium reliability, while third-party options provide value and extended runtime for those willing to explore alternatives.
Prices and availability can change frequently, so verify the latest details before purchasing. We hope this guide helps you find the perfect power source for your outdoor equipment.