40V 2AH Lithium-ion Battery

Model: #OP4020A

4.5 | 271 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 270.
Rated 5 out of 5 by from Lightweight and Powerful. So far so good I used this with the 10 inch pole saw and cut down fallen hanging tree limbs after a recent storm help up fine with plenty of power to cut various limbs ranging from 2 inches to 7 inches at the end of my task which lasted about 20 minutes of cut time still had 2 bars of power left.
Date published: 2023-05-08
Rated 4 out of 5 by from Works well This came with the chainsaw and operated the saw well.
Date published: 2023-03-16
Rated 5 out of 5 by from It fits my chain saw It's the last battery that actually fits my electric chain saw, because my chain saw is an older model. The larger batteries are just 1/4 inch too tall to fit, so I bought 2 of these.
Date published: 2023-03-05
Rated 4 out of 5 by from Its ok. Got it for a Christmas present, wish it had a longer life. I have a good size yard and use the batteries with my blower. I all so have three 3AH and one 4AH and they all get used to blow my leaves. I had a 5AH but it only lasted 2 years.
Date published: 2023-01-09
Rated 5 out of 5 by from 40 volt battery Great extra battery for my leaf blower and lawn mower
Date published: 2022-12-05
Rated 4 out of 5 by from Works as it should It charges and works but getting up in price. ....
Date published: 2022-12-03
Rated 1 out of 5 by from Great power and poor longevity I've had four of these batteries, if you want them to last make sure you charge them occasionally when not in use. All the batteries I had have died just after the warranty is up. I have used them in a weed eater, snow broom and leaf blower and they work great,pretty light use but they're all still dead.
Date published: 2022-11-26
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
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