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Model # OP4020A

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40V Lithium-Ion 2.0 Ah Battery

$14900
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  • Works with all RYOBI 40-Volt tools
  • Lithium-Ion fade-free power
  • Replacement Battery for RYOBI 40-Volt Tools
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Product Details

Power your RYOBI 40V tools with this compact lithium-ion battery. This 2.0 Ah battery provides fade-free power and runtime, whether you use it as a replacement or a spare battery. This battery works with all RYOBI 40V tools and chargers. Backed by a 3-year warranty, there's never been a better time to consider cordless.
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Specifications

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Questions & Answers

40Questions
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Q:So I ordered a ryobi weed eater with a 40v lithium battery. The battery won't charge and the charger keeps reading error... what do I need to do to get the battery replaced
by|Sep 21, 2023
1 Answer
Answer This Question

A:  Hello, Cynthia - Thank you for your question. For assistance with this I would recommend contacting us directly. A RYOBI Customer Experience Professional is here for you, Monday - Friday from 9 am to 6 pm (EST) when you call or text us at 1.800.525.2579 or through email or live chat when you visit us at https://www.ryobitools.com/support/contact. And thank you again for your interest in the 40V Lithium-Ion 2.0 Ah Battery. - Jewel

by|Sep 26, 2023
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    Q:Will my 4ah battery fit in the pole saw that comes with 2 ah battery
    by|Sep 7, 2023
    1 Answer
    Answer This Question

    A:  Hello, Robert - Thank you for your question. If the pole saw and battery are both the same voltage then, yes. I hope this helps! Additionally, if you need further support, then a RYOBI Customer Experience Professional is here for you, Monday - Friday from 9 am to 6 pm (EST) when you call or text us at 1.800.525.2579 or through email or live chat when you visit us at https://www.ryobitools.com/support/contact. And thank you again for your interest in the 40V Lithium-Ion 2.0 Ah Battery. - Jewel

    by|Sep 9, 2023
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      Q:what does the AH number stand for on the battery
      by|Sep 6, 2023
      1 Answer
      Answer This Question

      A:  Hello, George - Thank you for your question. Ah is the amp hour rating of the battery. This is a 2 amp hour battery. I hope this helps! Additionally, if you need further support, then a RYOBI Customer Experience Professional is here for you, Monday - Friday from 9 am to 6 pm (EST) when you call or text us at 1.800.525.2579 or through email or live chat when you visit us at https://www.ryobitools.com/support/contact. And thank you again for your interest in the 40V Lithium-Ion 2.0 Ah Battery. - Jewel

      by|Sep 9, 2023
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        Q:For items like my mower or snowblower can I use different amp batteries at the same time as long as they are 40 volt? Is it bad for either the equipment or batteries to do so?
        by|Jun 4, 2023
        2 Answers
        Answer This Question

        A:  It doesn't hurt anything, although the 2ah battery isn't going to give you much time in a snow blower or lawn mower.

        by|Jun 6, 2023

          A:  Hello, Jason - Thank you for your question. Yes, as long as they are RYOBI 40v batteries you could use any size Ah battery that will fit. I hope this helps! Additionally, if you need further support, then a RYOBI Customer Experience Professional is here for you, Monday - Friday from 9 am to 6 pm (EST) when you call or text us at 1.800.525.2579 or through email or live chat when you visit us at https://www.ryobitools.com/support/contact. And thank you again for your interest in the 40V Lithium-Ion 2.0 Ah Battery. - Vini

          by|Jun 7, 2023
            Showing 1-4 of 40
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            Customer Reviews

            4 out of 5
            (771)
            • 4
              out of 771 reviews
            • 80% recommend this product
            Filter by:
            Showing 1-10 of 771 reviews
            Mower fantastic ll
            [This review was collected as part of a promotion.] I bought the mower ,40V lithium battery and changer a month ago . I love them , as a woman in her 50s with screws in my back . This Is exactly the mower and set up I needed
            by
              • Recommended
              Okay battery
              You get what you pay for I guess. Expensive but doesn't last.
              by
              • Verified Purchase
              2 found this review helpful
              Can't express disappointment...
              I had it fully charged before using it in brand new chain saw. I didn't get more than 6 cuts of some trees that had already been cut down before it ran out of power. Had to keep going back to smaller electric saw while both batteries recharged.
              by
              Response from RYOBIOutdoorsDec 2, 2021
              Hello, Fran - We are sorry to hear about your experience with the run time of your batteries! We'd really appreciate the opportunity to hear more from you, so we can try and turn this experience around. If you would, please be looking for an email from us at reviews@ryobitools.com. RYOBIOutdoorTools
              • Verified Purchase
              Did not last it’s two hour power I have to wait for recharge three hours for recharge and it was ...
              Did not last it’s two hour power I have to wait for recharge three hours for recharge and it was over heated did not know what was going to happen the battery that originally came with the electric mount lasted only three week’s
              by
              • Verified Purchase
              3 found this review helpful
              40v
              [This review was collected as part of a promotion.] Bought as a battery backup for my 40v power inverter Incase of Loss of power.
              by
              • Verified Purchase
              • Recommended
              Ease of installing and removing
              [This review was collected as part of a promotion.] Bought this a few months ago love it.would buy again.
              by
              • Verified Purchase
              • Recommended
              This battery has really good power for its size and weight. I much prefer to have two of this si...
              This battery has really good power for its size and weight. I much prefer to have two of this size battery instead of one larger more powerful one. I find having this lighter battery makes the work easier and if I have two of them I can have one in the charger while I am using the other one. I have had it for a few weeks and used it with my hedge trimmer and it provided all the power I needed to do the job. I wasn’t sure how long the battery would run when it is fully charges so I tested it with my Ryobi Jet Fan Blower running continuously and it ran for 12 minutes before I heard a change in the pitch of the blower. It probably would have run a little longer, but I feel this represents the amount of time the battery would continuously run this blower at maximum performance. I tried recharging the battery right after shutting the blower off, but the charger wouldn’t charge the battery. I checked the instructions and it said the charger wouldn’t charge a battery if it was too hot. After the battery cooled, I tried again and the battery took a full charge.
              by
              • DIY
              • Recommended
              6 found this review helpful
              I have used this battery for only a few weeks. And so far I am very impressed with its capabilit...
              I have used this battery for only a few weeks. And so far I am very impressed with its capability to deliver the power required to run my RYOBI tool to its maximum capability. I am also impressed with its run-time between recharges. To date, I have been able to finish every task before the charge ran out. So I do not have available a good time estimate of how long a full-charge will last. After finishing a job where I am using the battery in a tool I place it in the recharge base to bring it up to full charge in preparation for its next use. However, I have timed how long it takes to fully charge the battery pack when only one of the four charge level indicators are lit and that is approximately 1.5 hours. The battery comes with a three year limited warranty. And like all the RYOBI products I am currently using it appears to be well-built, so I expect it will provide many years of issue free service. See attached photographs. Well done RYOBI.
              by
              • Recommended
              1 found this review helpful
              40-VOLT LITHIUM-ION 2.0 AH BATTERY, these new Lithium batteries really pack a punch now a days. ...
              40-VOLT LITHIUM-ION 2.0 AH BATTERY, these new Lithium batteries really pack a punch now a days. Battery technology is leaps and bounds from the 1990's and these batteries are it. The batteries have a button and you can press to see how much JUICE is left which sure is a bonus now! For such a powerful Lithium battery but yet very light when adding to your tool.
              by
              • Recommended
              2 found this review helpful
              by
                Showing 1-10 of 771 reviews

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                Battery Voltage (V)40V40V40V40V
                Used with Equipment TypeBlower, Chainsaw, Cultivator/ Tiller, Generator, Hedge Trimmer, Mower, Powerhead, Pressure Washer, Push Mower, Snow Blower, String TrimmerBlower, 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, String Trimmer, Trimmer, Walk Behind MowerBlower, Chainsaw, Edgers, Hedge Trimmer, Mower, Powerhead, Push Mower, Snow Blower, Trimmer
                Battery Amp Hours 2.04.06.0
                THD SO SKU 1003951528
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