Internet #307951451

Model # OP4020A

Store SKU #1003966407

Store SO SKU #1003951528

0046396026590

RYOBI

40-Volt Lithium-Ion 2.0 Ah Battery

$ 99 00
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Frequently Bought Together

Frequently Bought Together

Product Overview

Power your RYOBI 40-Volt tools with this high capacity lithium-ion battery. It provides fade-free power and longer run time, whether you use it as a replacement or a spare battery. Use with the 40-Volt Charger to get a full charge in less than 2-hours. 3-year warranty.
  • Replacement back up battery for RYOBI 40-Volt lithium-ion tools
  • Fade-free power
  • Increased run time
  • Quick charging in less than 2-hours
  • 40-Volt 2.0Ah high capacity battery
  • Click here for more information on Electronic Recycling Programs
  • California residents see Prop 65 WARNINGS

Product Overview

Model #: OP4020A
Sku #: 1003966407
Internet #: 307951451

Power your RYOBI 40-Volt tools with this high capacity lithium-ion battery. It provides fade-free power and longer run time, whether you use it as a replacement or a spare battery. Use with the 40-Volt Charger to get a full charge in less than 2-hours. 3-year warranty.

  • Replacement back up battery for RYOBI 40-Volt lithium-ion tools
  • Fade-free power
  • Increased run time
  • Quick charging in less than 2-hours
  • 40-Volt 2.0Ah high capacity battery
  • Click here for more information on Electronic Recycling Programs
  • California residents see Prop 65 WARNINGS

Info & Guides

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Specifications

Dimensions

Product Depth (in.)
4
Product Height (in.)
2.5
Product Width (in.)
6.5

Details

Fits Brands
RYOBI 40-Volt
Fits Models
Works with all RYOBI 40-Volt lithium-ion tools
Part Type
Cordless Battery
Returnable
90-Day
Used with Equipment Type
Blower,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

Specifications

Dimensions

Product Depth (in.)
4
Product Height (in.)
2.5
Product Width (in.)
6.5

Details

Fits Brands
RYOBI 40-Volt
Fits Models
Works with all RYOBI 40-Volt lithium-ion tools
Part Type
Cordless Battery
Returnable
90-Day
Used with Equipment Type
Blower,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

What is the weight of the battery?

What is the weight of the battery?
Asked by: Suzie
a hair under 2 pounds (1lb 14.1 oz)
Answered by: longball
Date published: 2019-07-02

what is the difference between a 2.0 ah battery and a 3.0 ah battery?

what is the difference between a 2.0 ah battery and a 3.0 ah battery?
Asked by: Tim
the power of the batter. The 5 amp runs longer than either.
Answered by: Connie
Date published: 2019-04-30

How long will these battery last on the Ryobi Mower

Asked by: CB
Don't know I uses mine on a blower and it goes for about 20 min or so. It takes two batters to do my yard.
Answered by: Greg
Date published: 2019-07-09

Repair the battires

Repair the battires
Asked by: Larry
Not your self unless you know what your doing. Buy another battery.
Answered by: longball
Date published: 2019-07-03
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Customer Reviews

40-Volt Lithium-Ion 2.0 Ah Battery is rated 4.1 out of 5 by 109.
Rated 2 out of 5 by from Here’s the thing... I love that it fits numerous Ryobi accessories. The power is there and it las... Here’s the thing... I love that it fits numerous Ryobi accessories. The power is there and it last for a reasonable amount of time. It recharges reasonably fast. It provides you, at a glance, how much charge remains. But...Here’s the other thing... The three year warranty is there for a reason. I have two homes and have two sets of Ryobi 40v products, each with two batteries and two rechargers. So I have considerable experiences with the battery. Here goes: Expect battery failure during that warranty period. Ryobi will replace the battery AND charger with very little hassle as long as you’ve registered your product. Your replacement battery, however, does NOT extend your original warranty. Thus, when that new battery fails (and it will) you will have a dilemma: buy a new 40v battery ($99) or trash whatever Ryobi product(s) you currently own. If the former is acceptable, you’re good to go. Just be aware that right now the technology that goes into this Lithium Ion battery has not yet been perfected.
Date published: 2019-04-15
Rated 5 out of 5 by from I love this weed eater. Light weight effective and... I love this weed eater. Light weight effective and easy to work. No more gas, oil or cranking to start. It was the perfect purchase for me. Just hope the battery life is good, so far, okay.
Date published: 2019-07-10
Rated 5 out of 5 by from Just what I needed to replace my old OP4015 for my chain saw. When up a tree or on my roof trimm... Just what I needed to replace my old OP4015 for my chain saw. When up a tree or on my roof trimming, it is nice to have a lighter tool and this battery lightens the chain saw and my new trimmer compaired to the OP4026 and OP4050. On the ground cutting up wood logs, I like the additional weight of the larger batteries because they add more pressure than the lighter OP4015 and OP4020 batteries on downward cuts bor when cutting to the side or in a tree cutting at angels weight works against you. Best thing is not having the long extention cord or a dirty 2 cycle,smoky chain saw. When sharpening blades, I just pop out the battery andI won't get a kick back.
Date published: 2019-04-20
Rated 5 out of 5 by from Job Finished on Time! Last Fathers day my wife bought me a Ryobi push mower and it came with a 40V 4.0 AH battery. My yard is fairly large and I was worried that the battery would not last for the entire yard. When the grass wasn't high I could just barely get the yard completed. When it's high, the battery would run out and I would not be able to finish the job. Purchased this 2.0 AH battery to help finish the job, and it enabled me to do just that. Was well worth the investment. Now using both batteries, I do not need to charge them both after each mowing and thus helping to extend both of their lives a bit more. [This review was collected as part of a promotion.]
Date published: 2019-06-17
Rated 5 out of 5 by from 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.
Date published: 2019-02-27
Rated 1 out of 5 by from I have a weed wacker and mower that use the batteries. We replace the batteries almost 3 months a... I have a weed wacker and mower that use the batteries. We replace the batteries almost 3 months and some times 6 months during the year. We have both the older style ( no better ) and new smaller style with the same results. We also have different charging stations. so it is not the charging stations or us running them to hard. Some times we have batteries that last a week in the field and they stop charging or 2/3 charge and then one of the cells dies. But the smaller model batteries work just fine. In the next two year cycle we will replace our equipment so we do not deal with this issue anymore.
Date published: 2019-05-21
Rated 5 out of 5 by from Good battery life This battery was included with the Ryobi electric lawn mower that I purchased a month ago. The mower is great. I wasn't sure the battery would last for the entire yard and I was right. However, it does last long enough to finish about 75%. It's way more than I thought it would be though. I bought a smaller A/hr battery to finish the job, so it's all good here. I really like the Ryobi line and am planning on more pieces. Definitely gonna get another of the bigger batteries. [This review was collected as part of a promotion.]
Date published: 2019-05-05
Rated 1 out of 5 by from These batteries have faulty charging circuits and Home Depot does not honor the warranty - nor do... These batteries have faulty charging circuits and Home Depot does not honor the warranty - nor do they support their customers who pay for these things! The batteries cost more than the device they power ... this is even worse than HP printers and ink! Trying to go green but guess I'll have to buy a gas powered blower and weed wacker and lawn mower ... fossil fuels are not going away because retailers and manufacturer's don't know how to support this stuff in a valuable way
Date published: 2019-04-21
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