Top 10 Best 40v battery in 2026

Last Updated - 6/13/2026

🏆Best Choice

Greenworks

Greenworks 40V 16" Cordless Lawn Mower, Ultra-Light Push Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility, 45Min Runtime)

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Effortless Power for ½ Acre Yards- Experience gas-like performance without the hassle—35 minutes of continuous runtime from a single 4.0Ah battery (full charge in 2 hours). Perfect for small to medium lawns up to ½ acre.
•Ultra-Lightweight Design (35% Lighter)- 16" cutting deck with ergonomic handles and push-button start makes maneuvering effortless—ideal for users prioritizing comfort and ease of storage.
•Smart Cut Adjustment System- Single-lever 5-position height control (1.25"-3.375") adapts to any grass type. 2-in-1 mulching/rear-bagging system maximizes clippings management.
•Zero Maintenance, Maximum Savings- No gas/oil costs, emissions, or engine tune-ups. Save $200+ annually vs gas mowers with whisper-quiet operation (<75dB).
•Complete Ecosystem Value- Includes battery, fast charger, grass bag & 3year tool + 3year battery warranty Works with 75+ Greenworks 40V tools(trimmers, blowers, chainsaws...)—expand your cordless toolkit.

View offer on:

$219.99

$299.00

-26%

Check Price

Greenworks

Greenworks 40V 21" Brushless Cordless (Self-Propelled) Lawn Mower (75+ Compatible Tools), 5.0Ah Battery and Charger Included

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•40V 21” LAWN MOWER - Get more done, faster, with Greenworks electric lawn mowers. This 40V self-propelled lawn mower provides up to 45 minutes of run-time with fully charged 5.0Ah battery (varies based on grass condition and operator technique).Front wheels : 8 Inches
•BRUSHLESS MOTOR / DURABLE STEEL DECK - This electric mower features a durable 21" deck, and a highly efficient brushless motor that provides more torque, quiet operation, and longer life
•SINGLE LEVER HEIGHT ADJUST - 7 position height adjustment provides the best cut in all environments. 3-in-1 design offers rear bag, side discharge, and mulching capabilities
•SELF-PROPELLED - Rear wheel drive power increases traction to tackle the toughest backyard terrain
•VERTICAL STORAGE - Save 70% more space with vertical storage
•MAINTENANCE FREE - The walk behind lawn mower is virtually maintenance free, with no gas, no oil, and no emissions. It starts instantly, is quiet, and delivers the power you need

View offer on:

$479.99

Check Price

Fancy Buying

LB40A010 Replacement for GreenWorks 29472 29462 29482 29463 Battery, Compatible with GreenWorks 40V G-MAX Power Tools 29252 20202 22262 25312 25322 20642 22272 27062 21242

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•♣Sub-Type: Replacement Battery Capacity: 6000mAh/6.0Ah Voltage (V): 40V Wattage: 240W. Replacement for GreenWorks 40V G-MAX Li-ion Battery 29472, 29462, 2901319.
•♣Works for: Compatible with 40V GreenWorks battery tools 20302 20672 24252 20202 22262 20322 25312 25302 25322 25223 MO40L410 MO40L02, replacement for GreenWorks 40V battery.
•♣High Capacity: 6.0Ah extended lithium-ion battery for your GreenWorks 40V heavy application, providing much more power than the 40 volt 2.0Ah 2.5Ah Lithium Ion Battery.
•♣40V Lithium Battery: Top A Grade battery cells; LED battery charge level indicator light; Surrounding exothermic holes for battery cooling; Easy to install and remove.
•♣Compatible Only with G-MAX 40V Tools and Charger Model 29482, 29463; Support Service: 100% QC of this cordless tool battery 30 Days Money Back and 1 Year guarantee.

View offer on:

$52.49

Check Price

Greenworks

Greenworks 40V 14" Cordless (Push) Lawn Mower (75+ Compatible Tools), 4.0Ah Battery and Charger Included

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Your purchase includes One GreenWorks 14-Inch Cordless Lawn Mower | One 4.0 AH Battery and Charger
•Product dimensions – 50.4” L x 15.8” W x 40.47” H | Weight – 33 lbs. | Run time – Up to 45 minutes (greatly depends on the condition of the grass)
•Easy assembly required | Deck Material – Plastic | Handle height is not adjustable | Cutting blade type – Single, metal
•Single lever 5-position height adjustment offers cutting height range from 1-1/4 inch to 3-3/8-inch for the best cut in all environments
•2-in-1 feature offers rear bagging and mulching capability for multiple use | 14'' deck is versatile and light weight | Up to 34% of U.S. homes only need one charge to get the job done

View offer on:

$269.99

Check Price

Greenworks

Greenworks 40V 20" Twin Blade Mower, 4.0Ah + 2.0Ah Battery

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•CORDLESS 20” LAWN MOWER – Get more done, faster, with Greenworks electric lawn mowers. This 40V push mower provides the power you need with up to 45 minutes of run-time on a fully charged 4.0Ah and 2.0Ah battery.Brushless motor : No.No load speed : 6000 RPM
•LIGHTWEIGHT, EASY TO USE – a lightweight 20” cutting deck allows for easy maneuvering through small to medium yards (up to ½ acre) more efficiently
•TWIN BLADES - offer better cut quality, superior mulching, and bagging capabilities
•AUTO SWITCH / SMART CUT TECHNOLOGY – dual battery ports with auto switch allows for uninterrupted mowing. Smart cut technology adjusts for power or runtime based on the thickness of your grass
•MAINTENANCE FREE – This walk behind lawn mower is virtually maintenance free, with no gas, no oil, and no emissions. It starts instantly and is quiet, but delivers gas-like power for your toughest projects

View offer on:

$326.77

$379.99

-14%

Check Price

MAFACBAC

40V Lithium Battery for Greenworks: 40 Volt 6.0Ah 29472 29462 2901319 25302 24322 Battery Replacement for Greenworks 40V G-MAX Lawn Mower - 6Ah 2 Pack

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Product Information: Voltage: 40 Volt,Capacity: 6.0Ah，Battery Type: Lithium ion, High Capacity 2 Pack 6.0Ah 40 Volt Lithium Battery Replacement for Greenworks 40V Battery,Compatible with Greenworks G-MAX 40V Lawn Mower Tools.
•2Pack 6Ah 40V Battery Replacement for Greenworks Battery 40V Model 29472 29462 2901319 24322 25223 25322 BAF724 24252 BAF721 STBA40B210 BAF725 21362 2101602 MO401410 BAF705 Compatible with Greenworks 25302 GMAX 40 Volt Lithium Lawn Mower and 29482 Charger.
•29472 40V 6Ah Lithium Battry Replacement for Greenworks 40 Volt Battery,Compatible with Greenworks G-MAX 40V Lawnmower Trimmer Leaf Blower MO40l02 20202 20312 27062 2701151 21332 2516402 23462 2908102 2500502 2532802 5107402 Power Tools.
•40V 6.0Ah Lithium-ion Rechargeable battery Pack Comply with FCC RoHS and CE security testing standards. Built-in premium Li ion battery cells provide fast charging and low power consumption, no memory effect.
•From the date of purchase, 30 days return policy, 12 months product quality service. Please feel free to contact us if you have any concern about this item. We will try our best to promise you an enjoyable shopping experience. Welcome to share your feelings with us!

View offer on:

$89.99

Check Price

MAFACBAC

MAFACBAC 29472 for Greenworks 40V Battery: 40 Volt 6.0Ah 29462 2901319 25302 24322 Lithium Battery Replacement for Greenworks G-MAX 40V Lawn Mower Tools

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Product Information: Voltage: 40 Volt,Capacity: 6.0Ah，Battery Type: Lithium ion Battery,High Capacity 29472 6.0Ah 40 Volt Lithium Battery Replacement for Greenworks 40V Battery,Compatible with Greenworks G-MAX 40V Lawn Mower Tools
•6Ah 40V Battery Replacement for Greenworks Battery 40V Model 29472 29462 2901319 24322 25223 25322 BAF724 24252 BAF721 STBA40B210 BAF725 21362 2101602 MO401410 BAF705 Compatible with Greenworks 25302 GMAX 40 Volt Lithium Lawn Mower and 29482 Charger.
•29472 40V 6Ah Lithium Battry Replacement for Greenworks 40 Volt Battery,Compatible with Greenworks G-MAX 40V Lawnmower Trimmer Leaf Blower MO40l02 20202 20312 27062 2701151 21332 2516402 23462 2908102 2500502 2532802 5107402 Power Tools.
•40V 6.0Ah Lithium-ion Rechargeable battery Pack Comply with FCC RoHS and CE security testing standards. Built-in premium Li ion battery cells provide fast charging and low power consumption, no memory effect.
•From the date of purchase, 30 days return policy, 12 months product quality service. Please feel free to contact us if you have any concern about this item. We will try our best to promise you an enjoyable shopping experience. Welcome to share your feelings with us!

View offer on:

$45.99

$54.99

-16%

Check Price

Greenworks

Greenworks 40V 21" Push Mower, 5.0Ah USB Battery

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Greenworks 40V brushless mower provides up to 60 minutes run-time with fully charged 5Ah battery. Run-time varies based on grass condition and operator technique
•Durable 21" steel deck allows you to handle large areas of grass quickly and easily. Brushless motor provides more torque, quiet operation, and longer life
•Dual battery port design enables one battery to be stored while the other fuels the mower, saving you a trip to the garage
•3-In-1 design allows you to mulch, rear bag, or side discharge your grass clippings. Use up to 70% less space in your garage with the vertical storage feature
•7 position single lever height adjustment for quick and easy adjustments

View offer on:

$302.50

$399.99

-24%

Check Price

Greenworks

Greenworks 40V 4.0Ah Lithium-Ion Battery (Genuine Greenworks Battery / 75+ Compatible Tools)

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•40V LITHIUM-ION BATTERY – 4.0Ah battery provides 50% more capacity than the standard 2.0Ah battery pack. No memory and virtually no self-discharge for maximum productivity and less downtime
•COMPATIBLE WITH 60 plus TOOLS – Compatible with all Greenworks 40V products
•LED FUEL GAUGE – Integrated 4 LED fuel gauge provides immediate feedback on state of charge
•FAST CHARGE TIME – Charges in 1 hour with rapid charger and charges in 2 hours with standard charger
•3 YEAR WARRANTY – Protect your investment with the Greenworks 3-year warranty. Note : Battery style and color may vary
•Diagnostic LED's indicates when the charging process has completed

View offer on:

$126.00

$159.99

-21%

Check Price

Greenworks

Greenworks 40V 19" Brushless (Push) Cordless Lawn Mower, 4.0Ah Battery and Charger

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•[40V LAWN MOWER] - Get more done, faster, with Greenworks electric lawn mowers. This 40V push lawn mower provides the power you need with up to 30 mins of run time on fully charged 4.0Ah battery (varies based on grass condition and operator technique)
•[DURABLE 19” STEEL DECK] - The 19” steel deck allows you to handle large areas of grass quickly and easily. Brushless motor provides more torque, quiet operation, and a longer life
•[SINGLE LEVER HEIGHT ADJUSTMENT] - 7 position single lever height adjustment for the best cut in all environments. The 2-In-1 design allows you to mulch and side discharge glass clippings.
•[MAINTENANCE FREE] - This walk behind lawn mower is virtually maintenance free, with no gas, no oil, and no emissions. Push button start, quiet operation, and delivers gas like performance.

View offer on:

$194.99

$279.99

-30%

Check Price

📊

📈 How we rank

With our cutting-edge technology, we examine thousands of products and retailers, assessing reviews, ratings, trends, and sales rankings to identify what matters most to users like you.

Our team evaluates this data alongside genuine user feedback, merging AI analysis with human insights to provide you with real-time, highly-rated recommendations that empower your decision-making with clarity and confidence.