Upgraded Replacement for Greenworks 40V 4.0Ah
4.3Editor score
Ultra high capacity
Triple certified safety
Smart design interface
In this guide
Finding the right power source is crucial for maintaining your outdoor equipment efficiency. A reliable battery ensures your tools run smoothly without unexpected interruptions during critical yard work sessions.
We evaluated ten top-rated replacement options based on capacity, compatibility, safety features, and user feedback. Our analysis focuses on performance consistency and value for various Greenworks 40V tools.
Each selection highlights specific strengths like runtime duration, charging speed, and build quality. Please note that pricing and availability can change frequently on retailer platforms so verify details before purchasing.
Top 3 Picks for Best Greenworks 40V Battery Replacement
Greenworks 40V 4.0Ah Lithium-Ion Battery
4.5Editor score
Fade-free power delivery
LED fuel indicator
Compatible with 75+ tools
Greenworks 40V 4.0Ah USB Lithium-Ion Battery
4.4Editor score
USB charging port
Quick charge time
One battery system
Top 10 Best Greenworks 40V Battery Replacement in 2026 Compared
The following table provides a side-by-side comparison of all ten selected replacement batteries. It highlights key specifications such as capacity, voltage, and unique features to help you make an informed decision quickly.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Greenworks 40V 4.0Ah Lithium-Ion Battery
40V 4.0Ah Capacity
Fade-free power delivery
LED fuel indicator
75+ tool compatibility
4.5Editor score
Editor's Choice
Upgraded Replacement for Greenworks 40V 4.0Ah
40V 4000mAh Capacity
UL FCC ROHS certified
Smart design interface
Extended long runtime
4.3Editor score
Best Premium
4.0Ah High Capacity Battery Replacement for 40v Greenworks
40V 4000mAh Capacity
160Wh Wattage
LED Indicator status
Multi-layer safety protection
1 Pack 29472 Battery Replacement for Greenworks 40V
40V 6.0Ah Capacity
4-level LED indicator
Heat release holes
Snap in design
4.5Editor score
2Pack 40V 4.0Ah Battery Replacement for Greenworks
40V 4.0Ah Capacity
2-pack quantity
4 LED indicators
Full tool compatibility
4.3Editor score
1Pack 6.0Ah 40V Battery Replacement for Greenworks
40V 6.0Ah Capacity
240Wh Wattage
Precision design fit
High-strength housing
4.1Editor score
6.5Ah 40V Battery and Charger Compatible with Greenworks
40V 6.5Ah Capacity
260Wh Wattage
USB charging port
Rapid charger included
5.0Editor score
2 Pack 40V 6000mAh Replacement for Greenworks
40V 6000mAh Capacity
2-pack quantity
4 LED indicators
Stable protective system
4.4Editor score
TREE.NB 6.0Ah 40V 29472 Lithium Battery Replacement
40V 6.0Ah Capacity
6000mAh capacity
Fuel gauge included
Precise interface design
4.0Editor score
Greenworks 40V 4.0Ah USB Lithium-Ion Battery
40V 4.0Ah Capacity
USB charging port
120 min charge time
One battery system
4.4Editor score
1. Greenworks 40V 4.0Ah Lithium-Ion Battery – Best Overall Replacement
Greenworks 40V 4.0Ah Lithium-Ion Battery
Genuine Greenworks product
Fade-free power
Integrated LED fuel
Overheat safeguards
This genuine Greenworks 40V 4.0Ah Lithium-Ion Battery stands out as the top recommendation for users seeking reliability. With a rating of 4.5 stars it delivers consistent performance across over 75 compatible tools in the same voltage range.
Pros
- Reliable genuine product
- Wide tool compatibility
- Integrated LED fuel
- Comprehensive safety features
- Fade-free power delivery
Cons
- Higher price point
- Fixed capacity option
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The integrated LED fuel indicator provides immediate feedback on battery state ensuring you never get caught off guard during critical tasks. The built-in battery management system protects against overheat short circuit and over-charge risks extending the lifespan of your equipment.
While it comes at a higher price compared to third-party alternatives the genuine product assurance justifies the cost for many professionals. The lack of memory loss after charging means you can store it longer without performance degradation.
Ideal for homeowners and professionals who prioritize longevity and safety this battery ensures your cordless tools run efficiently. It is the best choice if you want guaranteed compatibility with your existing Greenworks 40V G-MAX tools.
Wide Tool Compatibility
Compatible with 75+ Greenworks tools in the same voltage for total freedom of movement without tangled cables.
Integrated LED Fuel Indicator
Provides immediate feedback on state of the battery ensuring you can plan your tasks effectively.
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2. Upgraded Replacement for Greenworks 40V 4.0Ah – Best Budget Option
Upgraded Replacement for Greenworks 40V 4.0Ah
40V 4000mAh Capacity
UL FCC ROHS certified
Smart design interface
Extended long runtime
For budget-conscious buyers this Upgraded Replacement delivers exceptional value without compromising too much on performance. Rated at 4.3 stars it offers an ultra-high capacity 4000mAh cell designed for extended runtime on cordless garden tools.
Pros
- Affordable pricing
- UL FCC ROHS certified
- Precision interface
- Extended long runtime
- 24h customer service
Cons
- Fits Gen 2 tools only
- Third-party manufacturing
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It holds UL FCC and ROHS certifications ensuring it meets safety standards for overcharge overheat and short circuit protection. The precision interface ensures steady power output while the efficient heat dissipation design protects both the battery and your tool.
The main limitation is that it fits second-generation 40V tools only so compatibility must be verified before purchase. However the 12-month satisfaction service and 24-hour friendly customer support add significant peace of mind for users.
This is the ideal pick for those who want a reliable alternative to OEM batteries at a lower price. It is suitable for light to medium duty tasks where cost efficiency is the primary concern.
Triple Certified Safety
Certified by UL FCC and ROHS with 6-fold safety protection for secure operation.
Smart Heat Dissipation
Maintains optimal battery temperature to prolong life and ensure safe operation.
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3. Greenworks 40V 4.0Ah USB Lithium-Ion Battery – Best Premium Pick
Greenworks 40V 4.0Ah USB Lithium-Ion Battery
40V 4.0Ah Capacity
USB charging port
120 min charge time
One battery system
This genuine Greenworks 40V 4.0Ah USB Lithium-Ion Battery brings added convenience with its integrated USB charging port. Rated 4.4 stars it allows you to charge devices while working outdoors which is a rare feature in this category.
Pros
- USB charging port
- Quick charge time
- One battery system
- Fade-free power
- Genuine Greenworks brand
Cons
- Premium price
- Fixed capacity option
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It delivers fade-free power with no memory loss after charging and supports a one-battery system for 10 tools. The quick charge time of 120 minutes ensures you get back to work faster after depletion without long waits.
The main trade-off is the higher price compared to standard replacements but the USB feature and genuine brand reliability justify the investment. It is specifically compatible with G-MAX 40V tools and chargers BAF704 or 29482.
Perfect for tech-savvy users who need to keep devices charged during outdoor tasks this battery is the premium choice. It combines top-tier performance with modern conveniences that standard replacements do not offer.
Integrated USB Charging Port
Allows you to charge devices easily while working outdoors for added convenience.
One Battery System
Offers a complete yard work solution with one battery system for 10 tools.
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4. 1 Pack 29472 Battery Replacement – High Capacity Choice
1 Pack 29472 Battery Replacement for Greenworks 40V
40V 6.0Ah Capacity
4-level LED indicator
Heat release holes
Snap in design
This 1 Pack 29472 Battery Replacement offers a robust 6.0Ah capacity designed for extended runtime on heavy-duty tools. With a strong 4.5 rating it provides overheat and over-current protection ensuring safe operation during demanding tasks.
Pros
- 6.0Ah high capacity
- 4-level LED indicator
- Snap in design
- Short-circuit protection
- Compatible with 29482
Cons
- Limited compatibility list
- No dual pack option
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The 4-level LED battery charge indicator allows users to monitor usage easily while surrounding heat release holes accelerate cooling. It features an easy-to-use design that snaps in and out of tools quickly for convenience.
While it supports a wide range of 40V cordless power tools it may not fit every model due to specific compatibility lists. Users should check their tool model number against the supported list before ordering to avoid mismatches.
Ideal for those needing higher capacity than standard 4.0Ah models this battery delivers long-lasting performance. It is a solid choice for large yards or longer work sessions where frequent recharging is inconvenient.
High 6.0Ah Capacity
Delivers extended runtime for heavy-duty tasks without frequent recharging interruptions.
Surrounding Heat Release
Heat release holes accelerate battery cooling to prevent overheating during long use.
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5. 2Pack 40V 4.0Ah Battery Replacement – Dual Pack Value
2Pack 40V 4.0Ah Battery Replacement for Greenworks
40V 4.0Ah Capacity
2-pack quantity
4 LED indicators
Full tool compatibility
This 2Pack 40V 4.0Ah Battery Replacement provides excellent value by including two batteries for continuous work. Rated at 4.3 stars it features 4 LED indicators to help plan work wisely and avoid unexpected power loss.
Pros
- Two batteries included
- Built-in LED indicators
- Full tool compatibility
- High quality cells
- 24h customer service
Cons
- Gen 2 tools only
- No USB port
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Each battery is made of high-quality cells with no memory effect and intelligent protection against over-charging and over-discharging. The charger has a built-in LED indicator showing real-time charging progress for easy tracking.
It is important to note that these fit second generation 40V tools only and are not compatible with Gen 1 models. If you have older tools you must verify compatibility before buying to avoid return hassles.
For professionals or homeowners who need backup power this dual pack ensures you never run out of energy. It is a practical solution for those who need uninterrupted workflow throughout the day.
Two Batteries Included
Provides continuous work capability with two batteries for uninterrupted workflow.
Built-in LED Indicators
Help plan work wisely by displaying remaining power and charging status clearly.
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6. 1Pack 6.0Ah 40V Battery Replacement – Long Runtime Option
1Pack 6.0Ah 40V Battery Replacement for Greenworks
40V 6.0Ah Capacity
240Wh Wattage
Precision design fit
High-strength housing
This 1Pack 6.0Ah 40V Battery Replacement offers significant runtime with a 6.0Ah capacity suitable for demanding lawn mowers and chainsaws. Rated 4.1 stars it features 4 LED indicator lights to display remaining runtime and minimize interruptions.
Pros
- 6.0Ah high capacity
- 240Wh Wattage
- 4 LED indicator lights
- Quick-release button
- CE RoHS certified
Cons
- Specific model compatibility
- Third-party brand
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Manufactured using high-precision molds it ensures a perfect fit with original tools and chargers. The housing uses high-strength composite materials for exceptional durability and strong resistance to damage during rough use.
Compatibility is broad for 40V G-MAX series tools but you should check the supported models list before purchase. It is CE RoHS and FCC certified ensuring it meets safety standards for safe operation.
Ideal for users needing high capacity on a budget this battery delivers reliable power for heavy tasks. It is a strong alternative for those who do not want to pay premium prices for OEM batteries.
High-Strength Housing
Constructed from high-strength composite materials for exceptional durability and damage resistance.
Quick-Release Button
Allows easy installation and removal of the battery from your tools quickly.
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7. 6.5Ah 40V Battery and Charger – Fast Charge Combo
6.5Ah 40V Battery and Charger Compatible with Greenworks
40V 6.5Ah Capacity
260Wh Wattage
USB charging port
Rapid charger included
This 6.5Ah 40V Battery and Charger set provides an ultra-long runtime with its 260Wh capacity. It received a perfect 5.0 rating for its ability to deliver consistent performance on Greenworks 40V tools.
Pros
- 6.5Ah capacity
- USB charging port
- Rapid charger included
- ECP chip protection
- Perfect fit tools
Cons
- Gen 2 tools only
- Third-party battery
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It includes a rapid charger with 2.0AMP output that charges 40V G-MAX batteries efficiently. The built-in USB port lets you charge devices during outdoor work adding convenience for your phone or lights.
The ECP chip prevents overcharge and overdischarge to extend lifespan and ensures stable operation. It is compatible with 40V G-MAX tools but note it is not compatible with Gen 1 models.
For those needing a complete combo with a charger this set offers high capacity and smart features. It is ideal for large properties where long runtime and fast charging are critical priorities.
ECP Chip Protection
Prevents overcharge and overdischarge to extend lifespan and ensure stable operation.
USB Charging Port
Built-in USB port lets you charge devices during outdoor work for added utility.
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8. 2 Pack 40V 6000mAh Replacement – Heavy Duty Combo
2 Pack 40V 6000mAh Replacement for Greenworks
40V 6000mAh Capacity
2-pack quantity
4 LED indicators
Stable protective system
This 2 Pack 40V 6000mAh Replacement offers exceptional value with two batteries providing over triple the run time of the original. Rated 4.4 stars it features 4 LED indicators to display remaining run time effectively.
Pros
- 6000mAh capacity
- Two batteries included
- 4 LED indicators
- Stable protective system
- Great for long time
Cons
- Gen 2 tools only
- No charger included
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It uses high-quality cells and a stable protective system to prevent battery from over-charge and over-heat. This ensures it is great for long time working without performance drops or safety issues.
The batteries only fit the second generation 40V tools so compatibility check is required. Users should ensure their tools match the supported list before purchasing to avoid return issues.
Ideal for heavy-duty users needing extended runtime and backup power this combo is highly practical. It offers more power per dollar and ensures you can finish your yard work without delays.
More Than Triple Runtime
6000mAh capacity has more last long time and more than triples the run time of the original.
Stable Protective System
Prevent battery from over-charge over-heat over-discharge and short-circuit for safety.
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9. TREE.NB 6.0Ah 40V 29472 Lithium Battery Replacement – Value High Capacity
TREE.NB 6.0Ah 40V 29472 Lithium Battery Replacement
40V 6.0Ah Capacity
6000mAh capacity
Fuel gauge included
Precise interface design
This TREE.NB 6.0Ah 40V 29472 Lithium Battery Replacement offers 6000mAh capacity for extended work sessions. Rated 4.0 stars it is designed to be a 100% replacement for Greenworks 40V G-MAX Li-ion batteries.
Pros
- 6.0Ah high capacity
- Fuel gauge included
- Precise interface design
- Microchip protection
- 100% replacement
Cons
- Gen 2 tools only
- Specific model limits
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It features a fuel gauge with integrated LED battery charge level indicator allowing you to monitor usage. Surrounding exothermic holes speed up battery cooling and ensure safer operation during hot days.
It is important to note this does not fit 21inch lawn mover MO40L02 or Gen 1 tools. Always verify your tool model before purchase to ensure proper fit and performance.
For budget users needing high capacity this battery is a solid value pick. It provides reliable power for light to medium tasks at a cost-effective price point.
Precise Interface Design
With on-board fuel gauge and exothermic holes for safe operation.
Upgraded Capacity
Upgraded to 6000mAh to work much more time on your 40V tools.
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10. Greenworks 40V 4.0Ah USB Lithium-Ion Battery – Reliable Genuine Option
Greenworks 40V 4.0Ah USB Lithium-Ion Battery
40V 4.0Ah Capacity
USB charging port
120 min charge time
One battery system
This genuine Greenworks 40V 4.0Ah USB Lithium-Ion Battery ensures top-tier quality and safety standards. Rated 4.4 stars it delivers fade-free power with no memory loss after charging for consistent performance.
Pros
- Genuine Greenworks brand
- USB charging port
- Quick charge time
- Fade-free power
- Compatible with 75+ tools
Cons
- Higher price
- Fixed capacity option
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The easy to use design snaps in and out of tools with USB charging Port for versatile charging options. Compatible only with G-MAX 40V tools it offers a complete yard work solution with one battery system.
While the price is higher than third-party replacements the genuine product guarantee is valuable for long-term use. It supports a quick charge time of 120 minutes to minimize downtime during heavy work.
For users who prioritize brand trust and safety this battery is an excellent investment. It is best suited for homeowners who want hassle-free compatibility with their existing Greenworks ecosystem.
Genuine Greenworks Quality
Ensures top-tier quality and safety standards for reliable power delivery.
Easy Tool Insertion
Easy to use design snaps in and out of tools with USB charging Port.
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Buying Guide – How to Choose the Best Greenworks 40V Battery Replacement
Choosing the right replacement battery involves considering capacity, brand reliability, and compatibility with your specific tools.
Battery Capacity
Battery capacity is measured in amp-hours (Ah) or milliamp-hours (mAh) and indicates how long the battery can power a tool. Higher capacities like 6.0Ah or 6.5Ah provide longer runtime for demanding tasks but may be heavier and pricier.
Select a capacity based on your typical work duration. For light tasks 4.0Ah is sufficient while for heavy duty jobs consider 6.0Ah or higher.
Brand Reliability
Genuine Greenworks batteries guarantee perfect fit and consistent safety standards. However third-party options often offer better value and features like USB charging ports at lower prices.
Consider your tolerance for risk. If you value warranty and guaranteed performance stick with OEM brands. If you want cost savings and features third-party options are viable.
Tool Compatibility
Many third-party replacements specify that they fit Generation 2 40V tools only and not Generation 1 models. Always check your tool model number against the compatibility list before purchasing.
Ensure the battery model matches the original model like 29472 or 29462 to prevent fit issues or damage.
Safety Features
Look for batteries with overheat overcharge and short circuit protection systems. Certified products with UL FCC or RoHS ratings ensure better safety for you and your equipment.
Safety features protect your tools from damage caused by electrical faults and extend battery life significantly.
Charging Speed
Quick charge times reduce downtime significantly. Standard batteries may take 120 minutes to charge while rapid chargers can reduce this time substantially.
If you need to work continuously consider a dual pack or a combo with a rapid charger.
Additional Features
Modern replacements may include LED indicators or USB ports to charge other devices. These features add convenience and help you manage power usage better.
Decide if these extra features are worth the additional cost for your specific workflow needs.
Warranty and Support
Third-party brands often offer 12-month warranties and responsive customer support. OEM batteries may have longer official warranties depending on the purchase channel.
Check the warranty terms carefully to ensure you have recourse if the battery fails early.
Price and Value
Prices vary widely between OEM and third-party options. Compare the cost per amp-hour to determine real value rather than just looking at the sticker price.
Balance your budget with the expected usage frequency to find the most cost-effective solution.
How to Use and Care for Your Greenworks 40V Battery Replacement
Always insert the battery firmly into the tool until it clicks to ensure proper contact and power delivery. Check the LED indicator to confirm charge level before starting any work to avoid interruptions.
Store the battery in a cool dry place away from direct sunlight to maintain longevity. Avoid storing the battery fully discharged or fully charged for extended periods to prevent capacity loss.
Clean the battery contacts regularly with a dry cloth to prevent corrosion. Avoid charging the battery in extreme temperatures and allow it to reach room temperature before charging.
Frequently Asked Questions
What is the difference between 4.0Ah and 6.0Ah batteries?
The primary difference is capacity and runtime. A 6.0Ah battery holds more energy and runs longer than a 4.0Ah model making it better for heavy duty tasks. Both have the same voltage so fit the same tools but weight and price may vary.
Are third-party batteries safe to use?
Many third-party batteries are safe if they have proper safety certifications like UL or FCC. Always choose reputable brands with safety features like overheat and short circuit protection to ensure safe operation and device safety.
Can I use a 40V battery with any Greenworks tool?
Only with 40V G-MAX tools of the same generation. Ensure your tool model matches the battery's compatibility list such as Gen 2 specific batteries to avoid fit issues or damage.
How long do replacement batteries typically last?
Most lithium-ion batteries last 3 to 5 years depending on usage and care. Avoid exposing the battery to extreme heat or cold and charge it properly to maximize its lifespan.
Do replacement batteries come with chargers?
Some combos include chargers while others are battery only. Check the product listing details carefully to know if you need to buy a charger separately for your existing one is compatible.
What happens if the battery does not fit?
If the battery does not fit it may be incompatible with your tool generation or model. Most sellers offer return policies so contact customer service promptly to resolve the issue and get a replacement.
Final Thoughts on Choosing the Best Greenworks 40V Battery Replacement
We have reviewed the top options from genuine OEM products to affordable third-party alternatives. Whether you need maximum runtime or budget savings there is a suitable battery in our list for every user.
Prioritize compatibility and safety features when making your choice to avoid potential damage to your tools. Choosing the right capacity will significantly improve your productivity and work experience.
Always verify current availability and pricing as deals can change frequently. Use our comparison table to find the perfect fit for your specific Greenworks 40V outdoor equipment needs.