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Model #OP4050A

Store SKU #1001555935

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40V Lithium-Ion 5.0 Ah Battery

$18900
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  • Works with all Ryobi 40V tools
  • Fade-free lithium-ion power
  • 5.0 Ah battery for increase run time
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Product Details

Easily power your tools with this 40V Lithium-Ion 5.0 Ah Battery. It features a 5.5 time runtime than a standard 2.0Ah compact battery. It comes with an onboard fuel gauge that shows the remaining runtime.
  • Works with all Ryobi 40V tools and chargers
  • 2.5 times more runtime than the Ryobi 40V 2.0 Ah compact battery
  • Fade-free lithium-ion power
  • On-board fuel gauge displays remaining runtime
  • Charges in 50 minutes or less with the Ryobi 40V rapid charger (model # OP406A, internet SKU 312564301)
  • Charger sold separately
  • Three-year limited warranty




  • volt, amp, string trimmer, mower, battery, cordless, electric, gas, 40. Ryobi


















  • volt, amp, string trimmer, mower, battery, cordless, electric, gas, 40. Ryobi














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Specifications

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Questions & Answers

266Questions
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Q:I have a Ryobi 40 volt Jet Fan Blower that I bought last year. The battery is a 40 v lithium 4AH. Will this 5AH work with my blower and what is the difference. Also the charger looks a wee bit diferent.
by|Nov 28, 2022
2 Answers
Answer This Question

A:  Hello, Rosemary - Thank you for your question. Yes, this battery is compatible with all RYOBI 40v tools. The only different would be the run time. Higher amp hour batteries usually provide more run time. 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 5.0 Ah Battery. - Jewel

by|Dec 1, 2022

    A:  Yes, the 40V 5Ah will work with your Ryobi 40V blower. Ah (amp hour), how much amperage a battery can provide for one hour. Another way to look at this, is that a 40v 5Ah will last longer than a 40v 4Ah.

    by|Dec 2, 2022
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      Q:I purchased a 2nd gallery for my husband new toy leave blower,vac.mulcher bathe battery that came with it was op40504. I purchased a second battery which was a OP 4050a. It?s supposed to be compatible it will charge however when insert it into the leaf
      by|Nov 20, 2022
      3 Answers
      Answer This Question

      A:  Hello, Teddy - Thank you for your question. The OP4050A is compatible with all RYOBI 40v tools. If it is not working with your tools then I would recommend taking the items to a service center. 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 5.0 Ah Battery. - Jewel

      by|Nov 29, 2022
        1 found this answer helpful

        A:  Not sure what the actual question is?

        by|Nov 29, 2022
          1 found this answer helpful

          A:  I have a 40 V-5Ah lithium battery for my Ryobi mower...When I needed a new battery last year- I was told it had to be the EXACT same kind of battery- so that's what I got... you can NOT interchange batteries & chargers....GOOD LUCK

          by|Nov 29, 2022
            1 found this answer helpful
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            Q:I have a 40 V self-propelled lawnmower the battery only lasted three years what is the lifespan of A 40 V battery 5AH
            by|Nov 18, 2022
            2 Answers
            Answer This Question

            A:  For the price it does not last long enough. Recharge very often and has a very limited life.

            by|Nov 29, 2022
              1 found this answer helpful

              A:  Hello, Ronlaam - Thank you for your question. Unfortunately, we do not have an exact life expectancy of the batteries. That would depend on how often the batteries are used and how well taken care of they are. 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 5.0 Ah Battery. - Jewel

              by|Nov 29, 2022
                1 found this answer helpful
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                Q:Will my self propelled robyi mower work with a 5ah battery rather than a 6ah?
                by|Nov 5, 2022
                4 Answers
                Answer This Question

                A:  Hello, Susan - Thank you for your question. You may have a 6Ah battery and mower that are not compatible with each other. 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 5.0 Ah Battery. - Jewel

                by|Nov 29, 2022
                  1 found this answer helpful

                  A:  Yes , mine works well with the 2.6AH , the 4AH and 5AH .The cost is the only issue ! I have used all in the 6 years I have owned it . Have not used the 6 yet , but price is a bit high .

                  by|Nov 29, 2022
                    1 found this answer helpful

                    A:  Yes

                    by|Nov 29, 2022
                      1 found this answer helpful

                      A:  Most likely, my non-propelled mower works even with the 2.8 amp battery that came with my weed eater. But it drains VERY fast compared to the 5 and 6amp batteries I have.

                      by|Nov 29, 2022
                        1 found this answer helpful
                        Showing 1-4 of 266
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                        Customer Reviews

                        4.4 out of 5
                        (2,850)
                        • 4.4
                          out of 2,850 reviews
                        • 84%recommend this product
                        Filter by:
                        Showing 1-10 of 2,850 reviews
                        Too Big. Pictures Say It All
                        The 5AH battery (left) in photos 1&2 is the replacement for the old 5AH battery (right). Ryobi says it's a fit for my 2018 RY40109 Mower. Problem is, the mower's battery cover won't close with the new battery installed. Ryobi reps keep insisting that it will fit, but when questioned about the hatch being open, they say they don't recommend running with the mower this way. (third photo). Talking to them about this seems useless. So I'll post my frustration here, with a goal to switch brands ASAP
                        by
                        Response from RYOBISep 2, 2022
                        Hello, Talk2meryobi - We are sorry to read about your unsatisfactory experience with the battery. If you would, will you please email us at Reviews@RYOBItools.com? We'd like to discuss your experience further. RYOBIOutdoorTools
                          5 found this review helpful
                          So Far So Good!
                          This is my second Ryobi battery and they work great with my mower and vacuum. They also don't take very long to charge either. A bit pricey but I think they are worth it.
                          by
                            • Recommended
                            Battery
                            Works good but The battery only works for 48 min. .
                            by
                              Good News/Bad News - and a word of caution
                              Bought op4050 (5 amp) model because my 2-year old 2.6 amp battery would only run chainsaw for 15 minutes. Charged my new battery overnight and it ran for... 8 minutes! Good news is that warranty 800 operator was friendly and is shipping me a new battery. Bad news is still have to wait two more weeks for a decent battery. Date code incidated battery was produced 15 months ago. This again confirms lessons I have painfully learned about Ryobi batteries. If you buy from anyone other than Home Depot, Ryobi WILL NOT honor a warranty. It sucks how expensive these batteries are, but bite the bullet, but from Depot, and keep your receipt and order number for the full three years.
                              by
                                9 found this review helpful
                                battery doesn't hold the charge after 8 month of light use.
                                i have leaf blower, hedge trimmer, chainsaw and purchased additional 5amp battery. i used them about 3 times in the 8 months. The 2 battery no longer hold the charge. i can't trust them to buy another battery. all tool go into crawl space. DON'T BUY THEIR BATTERY OPERATE TOOLS.
                                by
                                Response from RYOBIOutdoorsDec 3, 2020
                                Hello, hoangnguy9 - We are so sorry that you're having battery issues! Our batteries are backed by a 3-year limited warranty. And we'd be happy to speak with you and see about turning this experience around. If you would, will you please email us at reviews@ryobitools.com? RYOBIOutdoorTools
                                  8 found this review helpful
                                  BATTERY NEEDS IMPROVEMENT such as thermal management ,over load protection
                                  I used this battery for about 2 years for lawn mower and cutting tree branches. Good and strong power. Easy to recharge and satisfactory amount of time last long. After I used with 14 in chainsaw and cut the 7 inchs tree root, battery was unable to recharge and defective . I don't have problem with 4-5 inches tree branches.
                                  by
                                    Ryobi battery problem
                                    I have 4 tools, leaf blower, weed trimmer, leaf vac, and chainsaw that run off of this type of battery, Within 1-2 years of purchasing these tools/batteries online and some from the home depot store, only one (1) of the four (4) batteries work good, two have failed completly, and 1 only works 2-3min now, the only good one lasts me about 15min. There’s no reason why these batteries should have failed so quickly. Ryobi need to fix their faulty batteries.
                                    by
                                    Response from RYOBIOutdoorsOct 6, 2020
                                    Hello, shad - We are disappointed to hear that your batteries have stopped working! Our batteries are covered under a 3-year limited warranty, so we expect them to last longer! If you would, please reach out to us at reviews@ryobitools.com. We would love to continue this conversation. RYOBIOutdoorTools
                                      • Recommended
                                      18 found this review helpful
                                      Glad to have it.
                                      Glad to have it. Get more time to do my work because of shorter time to charge.
                                      by
                                      • Verified Purchase
                                      • Recommended
                                      suck
                                      i have the Ryobi lawn mower, weed eater and blower all three batteries absolutely suck. All 3 can't keep a charge. The lights will say they're fully charge put them on the equipment and last 5 minutes (if lucky) 1 of them are the 3Ah and 1 is 4Ah and the other 5Ah. They equally suck.
                                      by
                                      Response from RYOBIOutdoorsJul 25, 2020
                                      Hello, Randy - We are so sorry that you're having issues with all three batteries! We expect the batteries to provide you with years of reliable performance, which is why they're backed by a 3-year limited warranty. If you would, please reach out to us at reviews@ryobitools.com. We'd like to learn more, so we can try and move this experience in a better direction. RYOBIOutdoorTools
                                        15 found this review helpful
                                        RYOBI is the best product out there. Large selection of 40v power tools. I hope they can offer a...
                                        RYOBI is the best product out there. Large selection of 40v power tools. I hope they can offer a combo blower & vacuum unit. A trade in/upgrade option would be great.
                                        by
                                        • Verified Purchase
                                        • Recommended
                                        1 found this review helpful
                                        Showing 1-10 of 2,850 reviews

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                                        Battery Amp Hours2.0 5.06.0
                                        Used with Equipment TypeBlower,Chainsaw,Cultivator/ Tiller,Edgers,Generator,Hedge Trimmer,Mower,Powerhead,Push Mower,Snow Blower,String Trimmer,TrimmerBackpack BatteryBlower,Chainsaw,Edgers,Hedge Trimmer,Mower,Powerhead,Push Mower,Snow Blower,TrimmerBlower,Chainsaw,Edgers,Hedge Trimmer,Mower,Powerhead,Push Mower,Snow Blower,Trimmer
                                        THD SO SKU1003951528 1001555935
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