12 best weed eater battery leaf blowers

Product description

GreenWorks GMAX 40V system offers a wide range of easy to use tools for the homeowner & those who just want more power. This 12" cordless string trimmer features an front mount motor for optimum balance. Light weight & easier to use, it has a variable Speed trigger for power on demand, 12" cut path, .065 line diameter auto feed head for easy line advancement. Designed for ease of use & comfortable operation without the hassle of gas. The 40V axial blower features a variable Speed trigger & cruise control for optimized control. With 110 mph & 390 CFM, blowing leaves has never been so easy. Compatible batteries currently include a 2Ah (model 29462) & 4Ah (model 29472) battery & charger (model 29482). the 2Ah battery charges within 1 hr. So you can get back to work & finish that job. The 4Ah battery charges within 2 hours.

• Up to 45 minutes of run time with fully charged 2.0Ah Battery, Battery and charger included
• The innovative axial fan design delivers 110 mph and 390 CFM to handle tough clearing jobs
• Light weight and easy to use
• 40V 2Ah Li-Ion Battery and charger included, compatible Battery and charger models 29462, 29472 and 29482

User questions & answers

Question:	Is 7.8lbs. weight with or without the battery
Answer:	Hello, I can provide both items weights below with the 2.0Ah battery installed. Blower with 2.0Ah battery - 9.26 lbs（4.2 kg） String Trimmer with 2.0Ah battery - 7.87 lbs (3.57 kg)
Question:	What is the difference between this blower and the 2400802 which is 110 Mph 390 Cfm? Also why is this blower not available without the battery
Answer:	Hello Kent,The difference is this model is brushless and the 2400802 is brushed. The model number for tool only is 2403102, which is currently not available on Amazon.
Question:	Will this battery be usable in my green works lawnmower
Answer:	Hi Lesley, As long as your lawn mower is a 40v G-max unit then the battery from this combo pack will work with it.
Question:	How long does it take to charge the battery
Answer:	Hello Virtuality,The charge time for the 2ah battery is 60 minutes and the 4ah 120 minutes.

Product description

The Black & Decker 20V Max Lithium 10-in. String trimmer edger, hard surface sweeper & 2-battery combo kit allows you to trim, edge & sweep for a neatly groomed look with no bumping or stooping. Lightweight & quiet, it trims overgrowth, edges borders, & clears debris with ease. The extra battery makes it great for large yd.

• Sweeper is ideal for clearing driveways, sidewalks, decks, garages
• String trimmer features automatic feed spool; No bumping required
• Lightweight design, low noise levels
• 20 volt max Lithium Ion 1.5Ah batteries. Nominal voltage is 18
• String trimmer has lightweight design of only 4.5 pounds. Sweeper has lightweight design of only 3.7 pounds

User questions & answers

Question:	Do these come with any warranty
Answer:	The LCC222 comes with a two year limited warranty.
Question:	Does this come with a charging dock
Answer:	LCC222 kit includes: 1) LST201 20V Trimmer/Edger; (1) LSW221 20V Sweeper; (2) LBXR20 20V batteries; (1) Charger; (1) Blow Tube; (1) AFS Spool and (1) Guard
Question:	How long does the battery last
Answer:	My first battery lasted 45 minutes.My order came with two batteries so it's very convenient ,once the first battery die,charge it up and use the other battery.
Question:	Does this set come with a battery charger
Answer:	LCC222 Includes: (1) LST201 20V MAX* Cordless Trimmer/Edger (1) LSW221 20V MAX* Cordless Sweeper (2) LBXR20 20V MAX* Lithium Ion Battery (1) Charger (1) Blow Tube (1) AFS Spool (1) Guard

Product description

The Husqvarna 40V Brushless blower uses an innovative axial fan design that maximizes on air output & run time. The cruise control gives the user maximum control of the blower's performanceup to 410 CFM. With an ergonomic & extremely lightweight design, the blower is easy to control & minimizes stress on the arm. 4Ah battery & charger are included. Run longer, stronger, lighter.

• Efficient Brushless motor uses an innovative axial fan design that maximizes on air output and run time
• Up to 410 CFM of air volume at 120 mph to clear heavy debris
• Slim design, low weight and ergonomic design gives a comfortable work experience
• Cruise control allows user to easily set the blower at the optimum RPM for each specific task.
• Low noise levels enable longer working hours and the possibility to work in noise sensitive and restricted areas and comes with a 2-year Warranty
• Power source type: Battery Powered

User questions & answers

Question:	Does this blower use the same lithium battery as the Husquevarna cordless chainsaw
Answer:	Have not had any problem on mine. Seems to work fine and starts on first pull.
Question:	Why is the price so much higher than lowes
Answer:	If you're in need of a tail gate you will need to contact our customer care department to have that added on to your order. The cost of the a tailgate is $45.
Question:	How long does it run on one charge
Answer:	Trickle charger, oil, two keys and intruction manual are all included. I have test operated the unit, and it works without problems. Also, the unit is easily moved around with the solid wheels and convenient, retractable handle, even though it weighs over well over 200 pounds.
Question:	Will the husqvarna 36v batteries work with this
Answer:	Mine does the same. It smooths out with a little choke or a load.

Product description

The BLACK+DECKER LCC340C 40V MAX Lithium String Trimmer/Sweeper Combo Kit consists of a LST140 40V MAX String Trimmer/Edger and a LSW40 40V MAX Sweeper. The String Trimmer/Edger features a power drive high torque transmission that gives you cutting power at the string, for clean, fast cuts. The automatic feed spool AFS automatically feeds trimmer line as needed, with no bumping to interrupt your work. This unit is convenient and versatile, as it converts from trimmer to edger in seconds. The Sweeper features a wind speed of up to 130 MPH to quickly and easily clear debris from hard surfaces. It has a low noise design for quiet operation. Both units offer a 'state of charge' indicator which shows your battery charge level. Backed by BLACK+DECKER'S 2 year limited warranty. Includes: 1) LST140 40V MAX String Trimmer/Edger, 1) LBX2040 40V MAX battery, 1) charger, 1) spool, 1) guard, 1) LSW40 40V MAX Sweeper, 1) Blow tube.

• LST140 40 volt max string trimmer/edger with power drive high torque transmission for clean, fast cuts
• Automatic Feed Spool AFS automatically feeds trimmer line as needed
• LSW40 40 volt max sweeper a wind speed of up to 130 MPH easily clear debris from hard surfaces
• Low noise design for quiet operation. Up to 130MPH
• Both units offer a 'state of charge' indicator which shows your battery charge level. Products are compatible with our 36 volt lithium Ion system

User questions & answers

Question:	Why does the description and product title say 40v but my option to check out says 20v? What am I actually ordering
Answer:	It is 40 v
Question:	Does this trimmer come with a wheel for edging
Answer:	No wheel, but has a cord guide for edging. Head also can swivel.
Question:	Does this Trimmer come with a battery charger
Answer:	It takes 60 minutes to charge the battery from 0% to 100%. It comes with the battery charger but the battery doesn't last too long. I had to really get creative with my timing to get everything done. I recommend a 2nd battery to finish everything in time.
Question:	Is this a black & decker 40 2.0 aH
Answer:	Yes, this kit will include (1) LBX2040 40V 2.0Ah battery.

Product description

GreenWorks G24 System offers a wide range of lightweight easy to use tools for the homeowner. This 12-inch cordless string trimmer features an front mount motor for optimum balance. This trimmer features a 12-inch cut path, .065 line diameter auto feed head for easy line advancement and innovative walk behind edging. Designed for ease of use and comfortable operation without the hassle of gas. The 24v Axial Blower features a variable speed trigger for optimized control. With 100 MPH and 300 CFM, blowing leaves has never been so easy. Compatible batteries currently include a 2ah (model 29842) and 4ah (model 29852) battery and charger (model 29862). The 2ah battery charges within 45 min so you can get back to work and finish that job. The 4ah battery charges within 90min.

• Innovative walk behind edging for a clean edge every time
• The innovative axial fan design delivers 100 MPH and 300 CFM to clear hard surfaces quickly
• Light weight and easy to use
• 24V 2AH li-ion battery and charger included, Compatible battery and charger models 29842, 29852, & 29862

User questions & answers

Question:	How much does it weigh
Answer:	Hello Chrissylou,The weight of this blower is:3.3lbs (without battery)4.4llbs (with battery)
Question:	Are Ryobi & GreenWorks batteries interchangeable
Answer:	Hello Kent, No, GreenWorks and Ryobi batteries are not interchangeable.
Question:	I purchase this with a 3 year extended warranty. the battery no longer charges and i cannot find how to file a claim with square trade
Answer:	Hello There, If you're outside of our 2-year warranty for the battery you will need to contact SquareTrade directly to file a claim.
Question:	Does the weed eater and blower combo come with charger and battery
Answer:	It comes with a battery and a charger.

Product description

The EGO POWER+ 530 CFM Blower and 15 Rapid Reload String Trimmer combines the best of both worlds when it comes to outdoor power equipment. The 530 CFM Blower is equipped with a high-efficiency brushless motor that delivers a lightweight, compact design for a longer run time, reduced vibrations and extended motor life. The Rapid-Reload head allows you to quickly and easily load new cutting line, line up the arrows on the head, insert the line and twist. Both products are compatible with all EGO POWER+ ARC Lithium batteries to deliver Power Beyond Belief.

• Includes 15'' String Trimmer, 530CFM Blower, 2. 5Ah battery & Charger
• 530 CFM Blower equipped with a high-efficiency brushless motor that delivers a lightweight, compact design for a longer run time, reduced vibrations and extended motor life
• 15'' string trimmer equipped with rapid reload head to quickly and easily load cutting line
• Compatible with all EGO POWER+ ARC Lithium batteries to deliver Power Beyond Belief
• Power source type: Battery-Powered

User questions & answers

Question:	Does the trimmer have bump line
Answer:	Hi there, excellent question. Yes, string is included. Thank you for your question.
Question:	Model # of trimmer is it the ego st1521s string trimmer
Answer:	Battery is usable on all products
Question:	Does this trimmer have a split shaft to attach othe accessories
Answer:	Has a folding shaft?
Question:	Is this battery the larger, 4.0 ah or the 2.5 ah battery
Answer:	It is athe 2.5AH lithium ion with a charger. Thank you

Product features

POWER BEYOND BELIEF

Every tool in our platform delivers or exceeds the power of gas—without the noise, fuss, or fumes.

ALL BATTERIES POWER ALL TOOLS

The 56V ARC Lithium battery works with all EGO POWER+ tools. Simply select your tool, click in battery and get to work.

TURBO BUTTON

Easily move heavy debris by pushing the turbo button for 530 CFM.

VARIABLE SPEED DIAL WITH LOCK ON BUTTON

Choose between speeds of 250-530 CFM for ultimate control.

HIGH-EFFICIENCY BRUSHLESS MOTOR

Delivers longer run time, low vibrations and an extended motor life.

75 MINUTE RUN TIME

With the included 2.5 Ah ARC Lithium Battery get up to 75 minutes of run time on single charge.

RAPID RELOAD HEAD

Variable speed control lets you dial the power up or down to tackle any job.

95" PROFESSIONAL GRADE DUAL TWIST LINE

Delivers professional-grade results.

HIGH-EFFICIENCY BRUSHLESS MOTOR

Delivers longer run time, low vibrations and an extended motor life.

VARIABLE SPEED CONTROL

Easily control the 15-inch cutting swath with the variable speed control.

BATTERIES POWER ALL TOOLS

Universal battery compatibility gives you the convenience of using any size battery for any tool.

THE POWER AND PERFORMANCE OF GAS

Advanced battery technology, delivers or exceeds the power of gas—without the noise, fuss and fumes.

CHARGES FASTER

Delivers fast recharge times, recharge your 2.5 Ah battery in as little as 50 minutes.

WEATHER RESISTANT CONSTRUCTION

Rugged construction keeps your tool safe under more conditions.

Product description

The advanced EGO Power+ 56V 2. 5Ah battery uses industry-leading arc-lithium technology to deliver power beyond belief and is compatible with all EGO outdoor power equipment. Keep-cool battery technology keeps each cell cool for long life and work in the most extreme conditions. All EGO outdoor power equipment comes with a 5-year limited and 3-year limited on EGO Power+ system battery packs and chargers. Please contact EGO customer service Toll free at 1-855-EGO-5656 any time you have questions or claims.

• Arc-Lithium: Industry's most advanced battery technology
• Keep-Cool Cell Technology
• The patented power management system protects the battery pack from the most harmful elements a battery can face from overheating to over-discharging
• Weather-resistant construction
• Integrated fuel gauge so you know how much power is left

User questions & answers

Question:	I want to purchase a second battery for my ego blower. it came with a 2.4ah....what are pro's and con's of getting a 5.0 as the back-up
Answer:	No.
Question:	Does the ba2800 56v 2.5ah battery replace the ba1400 56v 2.5ah battery? what is the difference and will the ba1400 charger work with it ? thank you
Answer:	Hello there, This model is a dual line unit, does not have an adjustable head. But can easily be used as an edger by simply turning the unit 90 degrees and holding it at a position to edge. This unit is better equipped than model 20312/21332 at handling thicker/denser weeds and grass.
Question:	What is the life expectancy (NOT run time) of the battery
Answer:	Hello there, That would be 42".
Question:	my 56v 2.5ah battery had flashing green light for a day then went dead. do i need to replace
Answer:	Hello there, Yes, model ST40L00 is the one pictured.

Product features

EGO Power+ BA1400 56-Volt 2.5Ah Lithium-Ion Battery

Description:

The EGO POWER+ 56-Volt 2.5Ah battery uses industry ARC Lithium technology to deliver Power Beyond Belief and is compatible with all EGO outdoor power equipment. Keep-Cool battery technology keeps each cell cool for long life and work in the most extreme conditions.

Features:

• Long-lasting power, rapid charging and durability in all weather conditions
• Unique arc design and Keep-Cool battery technology keep each cell cool for long life and hard work in the most extreme conditions
• Integrated fuel gauge to let you know how much power is left in your battery
• ARC Lithium battery is compatible with all EGO POWER+ Power Equipment and chargers

• 【Energy-Efficient High-Tech Motor】What defines power equipment? The answer is definitely the motor. Litheli leaf blower is propelled by an upgraded brushless motor with advanced turbo tech that runs at max. 480CFM. The motor is more compact and much quieter due to its no-brush design, and able to generate higher torque from less energy consumption while saving you from repeated maintenance. It’s the top-rated power choice for this no-exhaust, free-maneuverability cordless blower, and for you!
• 【Easily Reach Your Desired Speed】Our pioneering prowess in motor tech will renew your knowledge of blower speed. To clear thick leaves, simply press the turbo button and an instant air flow will speed out of the tapered tube at an impressive 92MPH. To clean thin dust & snow, just turn the dial for a variable speed from 45MPH to 76MPH. The air flow is stable and concentrated, minimizing the hazards of raised dust. Refreshing your garden, caring about your health, it’s the blower you can’t miss.
• 【Light, Super Light, Exceptionally Light】Need an ultra-lightweight tool? This 5.7 lbs leaf blower will be the choice you won’t regret. Even its color design reduces the visual heaviness. It allows one-hand grip on the rubber-wrapped handle that is both non-slip and gentle to touch. When operating, the body naturally tilts towards the blowing direction and keeps perfect balance to reduce user fatigue, so you can turn your garden & home duties into a light chore.
• 【Highly Versatile For Various Jobs】Ever been upset by dirty corners? Get a Litheli leaf blower and your life is trouble-free. Besides its excellence in blowing leaves, pine needles, grass clippings, dust & snow on lawn, yard, driveway & deck, it is also a deft helper to clean hard-to-reach places like ceiling corner, flower bed etc. Another considerate feature is the metal scraper on the nozzle for wiping off wet leaves and stubborn debris, so you don’t have to bend over to pick them up.
• 【Battery-Sharing Tool Lineup】Litheli is very proud to present a robust & reliable 40V cordless tool lineup based on a swappable & eco-friendly Lithium-ion battery pack platform. You can choose from leaf blower, pole saw, chainsaw, string trimmer, hedge trimmer etc., and save money on extra batteries. Additionally, we have 3y basic + 2y extended warranty for tool, 1y basic + 2y extended warranty for battery & charger. Our customer-support team is ready to help you 24/7. Feel free to contact us!

User questions & answers

Question:	looking for a stihi leaf blowers
Answer:	The 5.0ah batteries will power all Ego devices considerably longer than the 2.4ah batteries. But, it is also more expensive.
Question:	Is it easy to clean the leaf blower after use
Answer:	Is there a ba2800 56v 2.5ah battery? I think the 2.5ah battery is the ba1400, which does replace the ba2800 56v 5.0ah battery and can be used in the same charger.
Question:	How many minutes can you run the blower on a fully charged 40V battery
Answer:	I had two batteries...a 2.0 amp/hour and a 2.5 amp/hour that went 4 years. A 5.0 Amp/hour went about the same...the 5.0amp hour was my most used battery. Considering the replacement prices, these batteries should go for 5 years, minimum
Question:	Does it have a filter so you can use this to blow dry a car and not scratch the finish
Answer:	We're sorry to hear about your battery. Please contact our customer service team at 1-855-346-5656 for additional warranty support.

Product description

This 2 pack of CRAFTSMAN V20 20V max* 2Ah Lithium battery pack provides up to 1.5x the runtime of a standard V20 20V max* Lithium battery. They are compatible with the CRAFTSMAN V20 20V max* cordless power tool and outdoor tool lineup. The premium grade high Performance cells provide high power and a long cycle life. Each pack is equipped with a 3-LED state of charge indicator for immediate battery charge feedback. No memory and low self-discharge means these batteries are ready when you are.

• 20 V Max 2 Ah Lithium battery provides extended runtime for heavy duty jobsite applications
• Professional grade High Performance cells for improved power
• Longer cycle life resulting in an extended battery life
• 3-Led state of charge indicator for immediate battery charge Feedback
• 3 Year Limited Warranty, refer to "Warranty & Support" section below for full details

User questions & answers

Question:	Can I leave my craftsman V20 2Ah battery on the charger indefinitely or will that damage the battery or charger
Answer:	DO You mean Litheli blower
Question:	Are these the same as Stanley Fatmax V20 batteries
Answer:	It really depends on your air quality. If you live in the caldera of a volcano, you may get some build up in the wind tunnel. If you live anywhere else, you probably won’t ever have to clean it, as it just blows air and never actually touches anything but the air. I suppose if you set it down in some dirt it could get a bit on it. Maybe wipe it off with a cloth.
Question:	Will this work with the cmcg400b grinder
Answer:	Dear valued customer, Our leaf blower's maximum load time is approximately 60 minutes on full charge. If you had any future questions, please don't hesitate to contact us. LiTHELi Customer Service
Question:	Will these batteries fit my 20 volt max craftsman impact driver model # cmcf800c
Answer:	Dear valued customer,  WELCOME TO A BATTERY- POWERED LIFE! Thank you for taking interest in our Litheli 40v lithium ion battery powered leaf blower. Unfortunately, our leaf blower does not have an air filter. Our technology is based on a direct flow, which preserves the brushless motor’s lifespan. However, our leaf blower is strong enough to quickly dry your car and the variable speed makes it gentle enough so that it won't damage your car. If you have any further questions, feel free to reach out to us. Thank you for taking interest in our product line of reliable battery powered tools! Best, Litheli Customer Support

Product description

Green Works G-MAX 40V Lithium-Ion Cordless Variable Speed Sweeper features a low maintenance, light weight design with wind speed up to 150 mph with additional speed control through Sweeper tip. Tool Only Model. Compatible with G-MAX Batteries 29462 and 29472 only.

• High Performance G-MAX 40V Lithium-Ion Battery delivers fade-free power with no memory loss after charging
• Variable speed delivers wind speed up to 150 mph, perfect for cleaning debris and leaves off hard surface areas and patios
• Additional speed control on Sweeper tip offers better sweeping and gathering capabilities
• Lightweight robust design for user efficiency and ease of use
• Compatible with GreenWorks G-MAX 40V Li-Ion System for higher efficiency and longer run time
• Ideal for light to medium duty clean up tasks

User questions & answers

Question:	How long does it take to fully charge the battery
Answer:	How long does a charge last?
Question:	How does this product perform at loosening plus blowing out wet and dry leaves in a garden bed
Answer:	It is not real powerful, so it would be frustrating to use on wet leaves. Fine as a broom for dry materials on a smooth surface like a patio. Honestly though, i don't think the convenience of cordless makes up for how underpowered they are compared to a corded blower.
Question:	Works ok. it is real easy to put battery in but, it is real hard to take off blower to charge. any thoughts
Answer:	I don't have any issues taking the battery off. I ass-u-me your pressing the release button....if so and its hard to remove maybe your release is messed up.
Question:	The item is made in china. quality control is poor some batteries don't recharge fully on arrival to usa
Answer:	Hello Vuong,The batteries are not shipped fully charged. To charge the battery please ensure you have fully connected the battery into the charger, when the battery is connected into the charger you should hear an audible click noise, additionally the battery should not be able to slide out of the charger without releasing the lock latch. Please contact us at 1-888-909-6757 for further assistance on your charger issue.

Product description

Landscaping has never been easier with Greenworks Pro 80V Max System.  The most powerful cordless battery platform in outdoor power equipment, you can now breeze through homes, corporate parks and entertainment venues with zero gas, zero emission and zero maintenance.  Go from zero to power with a push of a button and get you through the task at hand with less vibration, less noise and less mess.  With additional batteries, a rapid charger for quick charge time and a multiple tool compatibility platform, you can get all your landscaping done with all the power and performance of gas while at a lower cost of operation.  It's not just your job, it's your life

• The 80V brushless axial blower and 16” string trimmer combo pack provides ultimate performance at a great value
• Brushless motor provides more torque, quiet operation, and longer life
• String Trimmer features a 14 / 16-In cutting path, durable .080” line, bump feed head, adjustable handle, and variable speed trigger for added control
• Blower features an axial design, with up to 500 CFM / 125 MPH wind speed. Variable speed trigger with 3 speed selections (low / medium / high)
• Includes 80V 2Ah lithium-Ion battery and rapid charger (30-minute charge time)

User questions & answers

Question:	What does the 80v blower weigh
Answer:	I leave my craftsman V20 battery in the charger until I need to replace the second one on the blower. It could be in the charger for maybe a week at a time.
Question:	Can the head be replaced with an aftermarket, non bump feed unit
Answer:	No.
Question:	Can you edge with the trimmer and if so how well does it work
Answer:	Yes, this battery and charger is compatible with the CMCG400B.
Question:	what is the differance between 2ah and 4ah batteries
Answer:	Yes, The V20 Lithium Ion Batteries are fitted for CMC- 800 types drivers of “ Craftsman “.

Product description

The Kobalt 24-Volt Max Leaf Blower and String Trimmer Combo Kit helps keep your yard neat and tidy. The String Trimmer’s 12 inch cutting swath and dual line feed increase cutting efficiency, while it’s bump head makes it easy to advance line for continuous use. The Leaf Blower’s turbine fan produces 410 CFM to quickly corral fallen and debris so you don’t have to rake, and it’s removable tube makes storage convenient. The interchangeable 24-Volt battery offers lasting power and run time, and high efficiency brushless motors offer durability to easily tackle outdoor chores. Variable speed triggers on both tools allow you to set the power to suit the task for maximum control. Yard work just got easier with the Kobalt Leaf Blower and String Trimmer Combo Kit!

User questions & answers

Question:	Are any attachments available for the blower
Answer:	Hello there, The weight of the blower is 4.6 lbs.
Question:	How many batteries does this come with
Answer:	Hello Frank, No, the trimmer head for this model is fixed and cannot be removed or replaced.
Question:	Are there any attachments for the blower? The stock opening is so wide it loses significant concentrated blowing power
Answer:	Hi there, As this is a fixed head string trimmer the operator must manually angle the unit during operation for use as an edger. Adjust your grip so the head is tilted by 90 degrees and the string now spins along the vertical axis. The unit will now function as an edger .
Question:	What trimmer line replacement part does it use
Answer:	I did a little research. In one of the GW product descriptions, it states the 2aH runs for 20 minutes and takes 30 minutes to charge. I also discovered it weighs 2.8 lbs and costs approximately $125.00. The marketing also stated the 4aH runs for 40 mins and takes 60 minutes to charge. I discovered the battery weighs 5.5 lbs and costs approximately $180 (50% increase in price for 100% increase in run time and 96% increase in weight of the battery). Some of the 80v lawn mower deals are priced at $499 for either one 4aH or two 2aH batteries. Now, and in the future, 2aH batteries will be cheaper to replace than 4aH batteries (however, 2aH batteries may become obsolete as they come out with 5, 6, 7, 8 aH batteries). No matter though, at that time 4 aH batteries will be cheapest to purchase then. If you are wanting the lightest battery, go with the 2aH battery as it is almost half the weight (2.7 lbs lighter) than the 4 aH battery. There is no performance difference between the two batteries as long as you have a 2nd 2aH battery and will actually be better performing. If you have over 40 minutes of continuous work to do, once the 4aH battery is depleted, you will have to wait one hour for a full charge. With the 2 aH batteries, at 20 minutes you switch to the second battery while the 1st is charging, when the second is depleted the 1st battery has only 10 more minutes to be fully charged and continue on with your work, meanwhile the 4aH battery will need an additional 50 minutes to be fully charged beyond the 10 minutes you waited for the the 1st 2aH battery to be completely charged. For lighter weight and longer work times without charging delays, the 2aH x2 batteries is better than the 4ah x1 battery. Cost is higher for double 2aH batteries vs single 4aH battery. But you can get around that if you are in the market for a cordless item that gives you the option of 2 -2aH batteries or 1 - 4aH battery. The lawn mower at $499 gives that option. The only inconvenience then is swapping out batteries at 20 mins of lawn cutting. However, having 2.7 less pounds for my blower, trimmer, pole saw etc. while having longer run time before waiting for recharge outweighs that minor inconvenience.