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40-Volt Lithium-Ion 4.0 Ah High Capacity Battery

$13900
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  • Works with all RYOBI 40-Volt tools
  • Ultimate high capacity 4.0 Ah battery for increased run time
  • Fade-free lithium-ion power
  • See More Details
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Price:
$13900

Product Overview

The RYOBI 40V 4.0 Ah Battery is the perfect addition to your RYOBI 40V collection. This 4.0 Ah battery gets 2X more runtime than the RYOBI 40V 2.0 Ah Compact Battery while delivering the same fade-free power and performance. All RYOBI 40 Volt batteries come with an on-board fuel gauge to display remaining runtime. This battery works with all RYOBI 40-Volt tools and chargers. Backed by a 3-year warranty, there's never been a better time to consider cordless.

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BrandRYOBIRYOBIRYOBIRYOBI
Name40V Lithium-Ion 2.0 Ah Battery40-Volt Lithium-Ion 4.0 Ah High Capacity Battery40V Lithium-Ion 6.0 Ah High Capacity Battery and Charger Kit40-Volt Lithium-Ion 4 Ah High Capacity Battery (2-Pack)
Price
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Ratings
(550)
(940)
(505)
(426)
Used with Equipment TypeBlower,Chainsaw,Cultivator/ Tiller,Edgers,Generator,Hedge Trimmer,Mower,Powerhead,Push Mower,Snow Blower,String Trimmer,TrimmerBlower,Brush Cutter,Chainsaw,Cultivator/ Tiller,Edgers,Generator,Hedge Trimmer,Mower,Powerhead,Push Mower,Snow Blower,String Trimmer,TrimmerBlower,Chainsaw,Edgers,Hedge Trimmer,Mower,Powerhead,Push Mower,Snow Blower,TrimmerBlower,Brush Cutter,Chainsaw,Cultivator/ Tiller,Edgers,Generator,Hedge Trimmer,Mower,Powerhead,Push Mower,Snow Blower,String Trimmer,Trimmer
Fits ModelsWorks with all RYOBI 40-Volt lithium-ion toolsWorks with all RYOBI 40-Volt lithium-ion toolsCharger: Works with all RYOBI 40-V lithium-ion batteries. Battery: Works with most Ryobi 40V ToolsWorks with all RYOBI 40-Volt lithium-ion tools
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Specifications

Dimensions

Product Depth (in.)
6.5
Product Height (in.)
4
Product Width (in.)
3.25

Details

Battery Amp Hours
4.0
Fits Brands
RYOBI 40-Volt
Fits Models
Works with all RYOBI 40-Volt lithium-ion tools
Number of Batteries Included
1
Part Type
Cordless Battery
Returnable
90-Day
Used with Equipment Type
Blower,Brush Cutter,Chainsaw,Cultivator/ Tiller,Edgers,Generator,Hedge Trimmer,Mower,Powerhead,Push Mower,Snow Blower,String Trimmer,Trimmer
Voltage (volts)
40

Warranty / Certifications

Manufacturer Warranty
3-Year Limited Warranty

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.5
    out of 1,120 reviews
  • 89% recommend this product
Filter by:
Showing 1-10 of 1,120 reviews
Garbage battery
I bought this battery as replacement for the defective battery that came with the mower. Neither battery could completely mow my front yard which is small. Mowing a fifth of an acre should not take days to do. definitely ditching Ryobi products from now on.
by EvilTiger77
Response from RYOBIOutdoorsJun 21, 2021
Hello, EvilTiger77 - We are sorry that you're not pleased with the run time you're getting! Run time will vary depending on the 40V Mower you're using, as well as outdoor conditions. And it would be wonderful if we could speak to you, and see what we can do to improve your experience. If you would, please keep an eye on your inbox for an email from us at reviews@ryobitools.com. RYOBIOutdoorTools
    1 person found this helpful
    awesome 4ah Bettery for ryobi.
    Awesome battery. Made way better then older one of 40 volt. Same setup as old but newer is better. Bought it for the 40 volt power source pack. Will use on outdoors too. Charges fast and fits snug in power pack incase of power outages.
    by honolulu21
      • Recommended Product
      Works great!
      [This review was collected as part of a promotion.] I bought my Ryobi lawn mower and battery a month ago. Love the ease of mowing. Battery runs for a minimum of 50 minutes. Charge it up and its ready to go for the next mowing. Very satisfied.
      by jean69
      • Verified Purchase
      • Recommended Product
      Power
      [This review was collected as part of a promotion.] Battery lasted and awesome power and would buy more products
      by Slam
      • Verified Purchase
      • Recommended Product
      good
      i loved it, mawn fhe lawn all around the house and still had charge spend 1 hour or more using it. the one in the left is the old one its work for half hour maybe
      by shary
        I love their products except for the lawnMower's batteries....
        I love their products except for the lawnMower's batteries. I bought a total of 6 batteries from Home depot, 3 for me & 3 for my son & the 2 of 3 I have would not charge. I tried exchanging them for another one & was tokd by sales associates that Home Depot no longer take them back. You sale it; but, you don't state anything in writing or tell customers about this new policy b4 or @ time of the purchases. That is not fair to me or customers because we can't keep spending over $100.00 for a battery. One of the batteries didn't charge from day one. I recently bought one due to the bad ones I have already. I'm a widower & a woman whose having to do her own yard work @ 65 years old & don't need anymore obstacles n my way as I have too many already especially during this pandemic.
        by Frustratedlady1
        Response from RYOBIOutdoorsAug 10, 2020
        Hello, Frustratedlady1 - We are very disappointed that two of your batteries are not charging! We expect better as the batteries are backed by a 3-year limited warranty. Please be looking for an email from us at reviews@ryobitools.com. We want to connect, so we can turn this experience into a better one! RYOBIOutdoorTools
        • Verified Purchase
        6 people found this helpful
        Battery was toast
        This is the second battery to not last a year...All three chargers say the battery is bad. And ryobi has banker hours...have to have a day off to file a claim
        by DarkRev
        Response from RYOBIOutdoorsJul 15, 2020
        Hello, DarkRev - We are so sorry that your battery has stopped working! If you would, will you please email us at reviews@ryobitools.com? Let's connect, so we can work on getting you back on track. RYOBIOutdoorTools
          5 people found this helpful
          A real time saver!
          [This review was collected as part of a promotion.] I have dozens of Palo Verde & Mesquite tress on my property of which have grown so tall that I use and extended ladder to reach. This little but not so weak pole saw did the trick in one day of cutting. I cut over 20 tress, 80 plus branches 2- 12 inch thick. Its angle is designed leverages its chain to hug the the branch cutting it with hardly any effort, amazing! One charge on the battery. It cost more to have the gardeners pick up the branches (two days) than the saw cost me. One of my best purchase of Ryobi yet! ty
          by Phoenix Starman
          • Verified Purchase
          • Recommended Product
          Great Battery
          [This review was collected as part of a promotion.] Awesome battery. I can get hours of work done using use it on my ryobi lawnmower and weed wacker. Makes the job so much easier. I can switch the battery from one tool to the next seamlessly. Comes with a battery indicator and a fast charger as well. I always know how much juice I have to keep going or take a break.
          by Michael7
          • Verified Purchase
          • Recommended Product
          Solid battery with great capacity
          [This review was collected as part of a promotion.] I power a weedeater with this battery and couldn't be more pleased. I bought an extra one because i was sure i would need it. Turns out, I can do my yard and my old neighbors yard next door and still have over half a battery remaining. This battery barely gets warm even after an half an hour of continuous use! Plus, it has a built in battery meter that tells you how much juice you have left! And don't even get me started on the great 40V weedeater Ryobi makes!! But that's for another review! This battery gets 2 thumbs up!!
          by Jader77
          • Verified Purchase
          • Recommended Product
          Showing 1-10 of 1,120 reviews