Upgraded Replacement for Greenworks 40V 4.0Ah
4.3Editor score
Wide tool compatibility
Triple certified safety
12 months warranty
In this guide
Finding the right Greenworks 40V battery replacement is crucial for maintaining your cordless tool performance. A reliable battery ensures consistent power and extends the life of your garden equipment significantly.
We analyzed ten top-rated replacement options based on capacity, safety features, and user feedback. This list covers genuine OEM cells and third-party alternatives compatible with various tool models.
Each pick highlights key specifications and real-world performance metrics to guide your decision. Prices fluctuate frequently so verify current listings before purchasing your next power source.
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
Compatible with 75+ tools
1 Pack 29472 Battery Replacement 6000mAh
4.5Editor score
High capacity 6000mAh
4-level LED indicator
Heat release design
Top 10 Best Greenworks 40V Battery Replacement in 2026 Compared
This side-by-side comparison evaluates every model on capacity, safety certifications, and tool fit to help you quickly identify the best match for your specific needs.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Greenworks 40V 4.0Ah Lithium-Ion Battery
4.0Ah Capacity
Fade-free power
LED fuel indicator
75+ tools compatible
4.5Editor score
Editor's Choice
Upgraded Replacement for Greenworks 40V 4.0Ah
4000mAh Capacity
Gen 2 tools only
UL FCC certified
LED status indicator
4.3Editor score
Best Premium
4.0Ah High Capacity Battery Replacement
4000mAh Capacity
160Wh Power
LED charging status
Multi-layer safety
4.2Editor score
1 Pack 29472 Battery Replacement 6000mAh
6000mAh Capacity
40V Voltage
4-level LED indicator
Heat release holes
4.5Editor score
2Pack 40V 4.0Ah Battery Replacement
4.0Ah Capacity
160Wh Power
4 LED indicators
Dual-port charger
4.3Editor score
1Pack 6.0Ah 40V Battery Replacement
6000mAh Capacity
240Wh Power
4 LED indicators
CE RoHS certified
4.1Editor score
6.5Ah 40V Battery and Charger
6500mAh Capacity
260Wh Power
USB charging port
Rapid 2.0AMP
5.0Editor score
2 Pack 40V 6000mAh Replacement
6000mAh Capacity
2-pack value
4 LED indicators
Gen 2 tools only
4.4Editor score
TREE.NB 6.0Ah 40V 29472 Lithium
6000mAh Capacity
Li-ion Battery
Fuel gauge LED
Microchip protection
4.0Editor score
Greenworks 40V 4.0Ah USB Lithium-Ion Battery
4.0Ah Capacity
USB charging port
120min charge
75+ tools compatible
4.4Editor score
1. Greenworks 40V 4.0Ah Lithium-Ion Battery – Best Overall Greenworks 40V Battery Replacement
Greenworks 40V 4.0Ah Lithium-Ion Battery
4.0Ah Capacity
Fade-free power
LED fuel indicator
75+ tools compatible
This genuine Greenworks battery offers reliable power for your cordless tools. It holds a 4.5 star rating and features fade-free energy delivery for consistent performance during tasks.
Pros
- Genuine OEM quality
- Fade-free power
- Integrated LED fuel
- Built-in BMS
- Wide tool compatibility
Cons
- Higher price point
- Heavier than third-party
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The integrated LED fuel indicator lets you monitor charge levels instantly without guessing. A built-in battery management system protects against overheat short circuit and over-charge issues to extend life.
Though it costs more than generic replacements the genuine quality ensures perfect fit and safety. The weight is slightly higher but guarantees compatibility with over 75 Greenworks tools.
Choose this if you prioritize reliability and longevity over initial cost. It is the safest investment for homeowners who rely on their Greenworks equipment for weekly yard maintenance.
Fade-Free Power Delivery
The battery maintains consistent voltage throughout discharge preventing power drops mid-task.
Safety Management System
Built-in safeguards protect against thermal runaway and electrical overloads automatically.
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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
Gen 2 tools only
UL FCC certified
LED status indicator
This upgraded third-party replacement offers a budget-friendly alternative to OEM cells. It maintains a solid 4.3 rating and provides extended runtime for your garden tools effectively.
Pros
- Affordable price
- Triple certification
- 4000mAh capacity
- 24h support
- 12 months warranty
Cons
- Fits Gen 2 only
- No rapid charge
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Safety certifications from UL FCC and ROHS ensure secure operation during heavy-duty use. The LED indicator tracks real-time charging status so you know exactly when power is ready.
It fits only second generation 40V tools so verify your model before buying. The 12-month warranty and 24-hour support give confidence despite the lower price point.
Select this option if you need cost-effective power for light to medium chores. It balances affordability with adequate capacity for most seasonal yard work needs.
Certified Safety
Independent safety certifications reduce risk of failure during outdoor operation.
Extended Runtime
High capacity cells allow longer operation between recharge sessions for efficiency.
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3. 4.0Ah High Capacity Battery Replacement – Reliable Performance Greenworks 40V Battery Replacement
4.0Ah High Capacity Battery Replacement
4000mAh Capacity
160Wh Power
LED charging status
Multi-layer safety
This set includes both a battery and charger for complete replacement. It holds a 4.2 rating and uses high-quality cells to ensure consistent power output for your tools.
Pros
- Battery and charger set
- LED charging indicator
- Multi-layer protection
- High-quality cells
- 24/7 support
Cons
- Bulky charger included
- Shorter warranty
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An LED indicator shows charging status in real time so you avoid overcharging the system. The multi-layer safety protection guards against voltage spikes and over-discharge damage.
The charger design is slightly bulkier than OEM units which may require more storage space. However the included charger ensures you can start using the battery immediately upon arrival.
This is ideal for users who lost both their old battery and charger. The combo packaging simplifies the upgrade process and restores full yard tool functionality quickly.
Complete Replacement Set
Both battery and charger included for immediate full system restoration.
LED Charging Status
Real-time LED feedback helps optimize battery health and charging efficiency.
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4. 1 Pack 29472 Battery Replacement – Maximum Runtime Greenworks 40V Battery Replacement
1 Pack 29472 Battery Replacement 6000mAh
6000mAh Capacity
40V Voltage
4-level LED indicator
Heat release holes
This high-capacity option delivers significantly longer runtime for demanding tasks. It holds a 4.5 rating and features 6000mAh capacity to reduce interruptions during yard work.
Pros
- High 6000mAh capacity
- 4-level charge gauge
- Heat release design
- Easy snap-in/out
- Multiple safety shields
Cons
- Heavier than standard
- May not fit Gen 1
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The 4-level LED indicator allows precise power monitoring. Heat release holes around the housing accelerate cooling to maintain safe temperatures during continuous operation.
Due to higher capacity the weight is increased which may affect handheld tool balance. Always confirm compatibility with your specific Greenworks model before purchasing.
Select this if you need maximum power for large properties or professional use. The extra runtime justifies the added weight for users tackling extensive gardening projects.
Maximum Capacity
6000mAh cells allow extended usage without frequent recharging cycles.
Thermal Management
Heat release holes prevent overheating during high load applications.
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5. 2Pack 40V 4.0Ah Battery Replacement – Value Pack Greenworks 40V Battery Replacement
2Pack 40V 4.0Ah Battery Replacement
4.0Ah Capacity
160Wh Power
4 LED indicators
Dual-port charger
This two-pack set provides excellent value for users needing multiple power sources. It holds a 4.3 rating and includes a charger to manage both batteries simultaneously via dual ports.
Pros
- Two batteries included
- Charger included
- 4 LED indicators per unit
- Dual-port charging
- 12 month warranty
Cons
- Total weight is high
- Bulk packaging size
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Each battery features 4 LED indicators for precise monitoring. The charger supports two units at once so you never run out of ready power for your tools.
Packaging is bulky which requires sufficient storage space. The combined weight of both units is substantial but ensures continuous operation for heavy daily use.
Choose this option if you operate multiple tools throughout the day. The dual charging capability keeps one battery charging while you work on another.
Dual Port Charging
Charge two batteries at once to minimize downtime and maximize efficiency.
Two-Pack Value
Buying two batteries together reduces cost per unit compared to singles.
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6. 1Pack 6.0Ah 40V Battery Replacement – Efficient Fit Greenworks 40V Battery Replacement
1Pack 6.0Ah 40V Battery Replacement
6000mAh Capacity
240Wh Power
4 LED indicators
CE RoHS certified
This 6.0Ah battery offers substantial power for larger cordless tools. It maintains a 4.1 rating and features a high-strength composite housing for durability in tough environments.
Pros
- 6000mAh capacity
- CE RoHS certified
- Quick release button
- High-strength housing
- 24h technical support
Cons
- Lower rating than others
- Limited Gen 2 compatibility
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CE and RoHS certifications ensure compliance with safety standards. The quick-release button makes swapping the battery out of tools fast and easy.
While durable the rating is slightly lower than competitors suggesting variable user experiences. Verify tool model compatibility carefully before purchase to ensure a perfect fit.
Use this if you need high capacity for mowers or chainsaws. The strong housing protects against impacts during professional landscaping or heavy gardening work.
High-Strength Housing
Composite materials protect the internal cells from physical damage.
Quick Release
Button mechanism allows rapid battery changes between tasks.
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7. 6.5Ah 40V Battery and Charger – Versatile Combo Greenworks 40V Battery Replacement
6.5Ah 40V Battery and Charger
6500mAh Capacity
260Wh Power
USB charging port
Rapid 2.0AMP
This combo boasts a rare 5.0 star rating and high capacity for extended operation. It includes a rapid charger and USB port to charge devices while working outside.
Pros
- Highest 6.5Ah capacity
- Built-in USB port
- Rapid 2.0AMP charger
- Perfect 5.0 rating
- Worry-free service
Cons
- Limited tool compatibility
- Expensive for third-party
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The 2.0AMP charger reduces wait times significantly compared to standard 1AMP units. The 6500mAh capacity provides ample runtime for large lawns or long project sessions.
Price is higher due to the extra features but the rating reflects high user satisfaction. Ensure your tools match the second generation specs before ordering.
Select this if you want premium features at a competitive price. The USB port adds convenience for outdoor workers needing to keep phones or lights powered.
USB Charging Port
Charge mobile devices directly from the battery during outdoor use.
Rapid Charging
2.0AMP output cuts charge time by half compared to standard chargers.
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8. 2 Pack 40V 6000mAh Replacement – Multi-Pack Greenworks 40V Battery Replacement
2 Pack 40V 6000mAh Replacement
6000mAh Capacity
2-pack value
4 LED indicators
Gen 2 tools only
This two-pack delivers high capacity power for multiple tools. It holds a 4.4 rating and each unit features 6000mAh to ensure you finish large jobs without recharging.
Pros
- Two 6000mAh batteries
- High capacity cells
- 4 LED indicators
- Stable protection system
- Reduced downtime risk
Cons
- No charger included
- Gen 2 compatibility only
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The stable protection system prevents over-charge and short-circuit failures. The 4 LED indicators allow clear visibility of remaining power for every battery.
Note this option does not include a charger so you must have a compatible unit. The pack focuses solely on extending runtime through high-capacity replacements.
Pick this if you have an existing charger and need more runtime power. Two batteries ensure one is always charging while the other powers your tools.
Multi-Tool Ready
Two batteries allow switching tools without stopping work due to low power.
High Capacity
6000mAh cells provide triple the runtime of original standard batteries.
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9. TREE.NB 6.0Ah 40V 29472 Lithium – Specific Fit Greenworks 40V Battery Replacement
TREE.NB 6.0Ah 40V 29472 Lithium
6000mAh Capacity
Li-ion Battery
Fuel gauge LED
Microchip protection
This battery is designed for precise fit in select 40V G-MAX tools. It holds a 4.0 rating and features exothermic holes to speed up cooling during intense usage.
Pros
- Precise interface design
- Fuel gauge LED
- Microchip protection
- Exothermic cooling holes
- 6000mAh capacity
Cons
- Specific model compatibility
- Rating varies by user
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The integrated LED fuel gauge shows battery level clearly. Built-in microchip protection prevents overcharging and extends overall lifespan significantly.
Compatibility is specific to second generation tools so verify model numbers. The fuel gauge is a helpful feature that many generic third-party batteries lack.
Use this if you need a reliable fit for older 29472 compatible tools. The cooling design helps maintain safety during hot days or long cutting sessions.
Fuel Gauge LED
Clear indicator lets you monitor battery levels visually at a glance.
Microchip Protection
Embedded chip manages power flow to protect cells from damage.
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10. Greenworks 40V 4.0Ah USB Lithium-Ion Battery – OEM USB Model Greenworks 40V Battery Replacement
Greenworks 40V 4.0Ah USB Lithium-Ion Battery
4.0Ah Capacity
USB charging port
120min charge
75+ tools compatible
This genuine OEM battery includes a USB port for charging devices on site. It holds a 4.4 rating and delivers fade-free power consistent with original Greenworks standards.
Pros
- Genuine OEM quality
- USB charging port
- Fade-free power
- Snap-in/out design
- Wide compatibility
Cons
- Higher cost
- Slower charge time
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The USB port adds convenience for outdoor tasks requiring small electronics. Snap-in/out design ensures quick tool transitions during complex landscaping jobs.
Charge time is around 120 minutes which is slower than rapid third-party chargers. The higher price reflects the genuine quality and integrated safety systems.
Choose this if you prioritize original equipment reliability and USB utility. It is the best pick for users needing official OEM support and features.
USB Charging Port
Integrated USB port lets you charge phones or lights while working.
Snap-in/out Design
Easy installation allows quick swaps between different tools seamlessly.
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Buying Guide – How to Choose the Best Greenworks 40V Battery Replacement
Selecting the right battery requires understanding capacity, safety, and compatibility to ensure your tools run efficiently.
Voltage Compatibility
Always match the voltage exactly to your tool model. 40V tools require a 40V battery to avoid damage or failure.
Check your tool model number to confirm the correct voltage requirement before buying.
Capacity (Ah) and Wattage
Higher Ah ratings like 6000mAh provide longer runtime for mowers and trimmers. Lower ratings are lighter for smaller tools like pruners.
Choose higher capacity for large yards and lower capacity for handheld tasks.
Generation Compatibility
Third-party batteries often specify if they fit Gen 2 tools only. Verify this to avoid buying incompatible replacements.
Match the generation version of your tools to the battery description.
Safety Certifications
Look for UL FCC or CE certifications that verify electrical safety. These reduce risks of overheating or short circuits.
Prioritize certified batteries to protect your tools and yourself.
OEM vs. Third-Party
Genuine OEM batteries offer guaranteed fit and safety standards. Third-party options often provide better value and higher capacity.
Balance cost savings with reliability based on your usage needs.
Warranty and Support
Many replacements offer 12 months warranty. Ensure the seller has accessible customer support for issues.
Choose options with clear warranty terms for peace of mind.
Charger Compatibility
Confirm the battery works with your existing charger. Some third-party batteries need specific chargers.
Check charger model numbers to avoid buying extra chargers.
Physical Fit
Ensure the housing shape snaps securely into your tool. Poor fit can cause connection issues.
Read reviews about physical fit before purchasing.
How to Use and Care for Your Greenworks 40V Battery Replacement
Insert the battery into your tool until you hear a snap and check that it locks securely. Use the tool immediately to ensure proper connection.
Charge using the recommended charger at room temperature. Avoid charging batteries that are extremely hot or cold to protect cell health.
Store batteries in a cool dry place. If not using for long periods charge to 50% to maintain internal stability.
Frequently Asked Questions
Does a third-party replacement void my tool warranty?
Some manufacturers claim that non-OEM parts void warranty. Check your tool warranty terms before buying third-party batteries.
What is the difference between 4.0Ah and 6.0Ah batteries?
6.0Ah batteries provide longer runtime but are heavier. 4.0Ah are lighter for handheld tools. Choose based on task duration.
Can I use these batteries in older Gen 1 tools?
Most replacements specify Gen 2 compatibility only. Older Gen 1 tools require specific batteries. Check model numbers before buying.
How long does it take to charge a replacement battery?
Charging times vary by capacity. 4.0Ah takes about 120 minutes while 6.0Ah may take longer unless rapid chargers are used.
Is it safe to mix different brands of batteries?
It is generally safe if voltage matches. However using same brand cells ensures uniform performance. Avoid mixing in high-demand setups.
What should I do if my battery overheats?
Stop use immediately and let it cool. Check for blocked ventilation holes. Replace if heating persists despite cooling.
How do I dispose of old lithium batteries safely?
Take to local recycling centers. Do not toss in trash. Many stores accept used batteries for safe disposal.
Do replacement batteries include charger?
Some packs include charger but many do not. Check product details carefully to avoid needing to buy charger separately.
Final Thoughts on Choosing the Best Greenworks 40V Battery Replacement
The Greenworks 40V 4.0Ah Genuine Battery stands out for reliability while the Upgraded Replacement offers budget value. The 29472 6000mAh choice delivers high capacity for large jobs.
Prioritize safety certifications and generation fit over price alone. Proper fit ensures your tools perform safely without risking damage.
Verify current listings and prices as they change frequently. Choosing the right battery extends tool life and keeps your yard work efficient.