40V 2AH Lithium-ion Battery

Model: #OP4020A

4.6 | 264 Reviews
Compatible with all RYOBI 40V Lithium tools and chargers, the 40V 2.0 AH Lithium-ion Battery is the perfect addition to your RYOBI 40V tool collection. It's lithium-ion cells deliver fade-free performance from start to finish. The convenient on-board battery life indicator keeps you informed while you're out in the yard tackling your landscaping jobs. The 40V 2.0 AH Lithium-ion Battery's compact lightweight design is perfect for strenuous landscaping tasks like hedge trimming, pruning and trimming. RYOBI 40V Lithium surrenders nothing but gas.


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This product is covered by a 3-year limited warranty.

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  • Voltage: 40
  • Amp Hours: 2.0
  • Cell Type: Lithium-ion
  • Compatibility: All RYOBI 40V Lithium Tools & Chargers
  • Weight: 2.5 lbs.
  • Warranty: 3 Year Limited


  • 40V 2.0 AH Lithium-ion Battery
  • Operator's Manual


40V 2AH Lithium-ion Battery
40V 2AH BATTERY is rated 4.6 out of 5 by 263.
Rated 5 out of 5 by from came with hedge trimmer I bought the hedge trimmer because I could get my gas one to start and didn't have time to mess with it. I did all the trimming I needed to do and only used 1/4 of the charge according to the battery status lights. Plenty of power and lighter than a gas one. Battery also fits the small rototiller.
Date published: 2022-11-16
Rated 5 out of 5 by from Long lasting power with short charge time needed This is the first actual long-lasting battery I have owned, I have used the tool for about 1 hour and I still have half a charge left.
Date published: 2022-11-15
Rated 3 out of 5 by from Still deciding Bought this a few weeks ago as a special price at DTO. But I can’t get it to charge above 3 bars
Date published: 2022-11-11
Rated 4 out of 5 by from Good replacement! Powers me through what I need to get done around the yard.
Date published: 2022-10-16
Rated 3 out of 5 by from did not live up to my expectations For the first month or so I loved it and then it died on me. I was very happy with customer service though. First they sent me a new charger. That didn't fix it, contacted customer Service, they sent me a new battery. now I had a two working batteries. I was a happy man. Then 2 weeks later my original one died. Then a month later the one sent to me died. So I purchased a new one because I needed to use that day. Now a month later it lasts maybe 15 minutes, if I'm lucky. So now I just purchased a 40V 5 amph. So far so good. But now I'm on my 4th battery in less then a year and I've now spent more on batteries then I paid for the original weed eater X 2
Date published: 2022-10-08
Rated 5 out of 5 by from What I need, when I need it I've got 2 of these, in addition to a 2.6Ah, for my trimmer and blower. The 2.6Ah gets me over half-way on the trimmer, a 2Ah gets me to the end and the other 2Ah gives me ample juice to blow off the driveway, walk and covered patio.
Date published: 2022-08-26
Rated 5 out of 5 by from Great power Charges quick and has some good power while using it
Date published: 2022-08-17
Rated 5 out of 5 by from Need Needed a replacement battery for my Ryobi chain saw.
Date published: 2022-08-13
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