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DTK

DTK Replacement for Ryobi 40V Battery 6.6Ah OP4040 OP4026 OP4030 OP4050 OP4060A 40 Volt Cordless Tool Lithium ion Batteries 2 Packs

  • Based on 421 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Oct 6
Order within 21 hours and 15 minutes
Available payment plans shown during checkout

Color: 2 Packs


Features

  • High PerformanceReplacement for Ryobi 40v battery| Battery type: Lithium-Ion | Voltage: 40V | Capacity: 6.6Ah.Adopt high quality battery cells with low internal resistance and high rate discharge to ensure batteries are efficiency and reliability,allows your cordless power tools working more powerful and longer.
  • Large CapacityWith 6600mAh higher capacity the 40v replacement for Ryobi battery provides long-lasting performance and durability.6.6Ah battery gets 3X more runtime than the standard 2.0Ah battery, while no memory effect provides thousands of charges and discharges without loss of capacity.
  • Wide CompatibilityDTK battery works with all 40v lithium-ion tools (string trimmer, lawn mower), including RY40200 RY40403 RY40204 RY40530 RY40460 RY40180 RY40250, compatible with original chargers,such as OP403A OP401 ZROP401 OP400A RY40440 etc.
  • Perfectly Replace For 40V BatteryIdeal replacement battery for 40V battery OP4050A OP4015 OP4026 OP40201 OP40261 OP4030 OP40301 OP4040 OP40401 OP4050 OP40501 OP40601.the DTK 40v 6.6Ah battery worked just like the original ones,very easy to install and fits perfectly.
  • Safe and ReliableDTK 40v battery have complied with CE, FCC, ROHS certified and standards, built-in over-charge, over-discharge, over-voltage, over-current, over-heating, and short-circuit protection. Three LED indicator light, allows users to conveniently monitor charge levels.Any question feel free to contact our customer service, we will do best to help you.

Number of Batteries: 2 Lithium Ion batteries required. (included)


Brand: DTK


Battery Cell Composition: Lithium Ion


Battery Capacity: 6600 Milliamp Hours


Recommended Uses For Product: Power Tool


Item Weight: 6.1 pounds


Item model number: OP4060


Batteries: 2 Lithium Ion batteries required. (included)


Date First Available: June 10, 2023


Manufacturer: Shenzhen Henglixinyuan Electronic Technology Co., Ltd


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Oct 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Dependability
Color: 1 Pack
Good quality, lifespan.
Reviewed in the United States on September 13, 2025 by Sue C

  • It takes a few charge cycles to get up to full power.
Color: 1 Pack
When I first used it, I was disappointed because I thought it was under powered, but then I remembered it takes several cycles before the Lipo battery reaches its full potential. After about four or five cycles now, it seems to be doing pretty good.
Reviewed in the United States on November 2, 2023 by Johnny Mac

  • Cheaper than Ryobi, but definitely cheap. It is not 6.6Ah.
Color: 2 Packs
These are clearly not 6.6Ah. They work, but not for very long. It runs for less time than the 6Ah from Ryobi. It is also much lighter and cheap so I'll give it 1 star for the false advertising.
Reviewed in the United States on June 11, 2025 by Amazon Customer

  • Works Well, Sus Capacity
Color: 2 Packs
Say 6.6 Ah but are suspiciously the size of the ryobi 4 Ah batteries. But they do work and are much cheaper.
Reviewed in the United States on June 20, 2025 by Brian David

  • Great price, works well with all my Ryobi machines
Color: 2 Packs
This is a great price for 2 Ryobi batteries. They worked on my Ryobi Chargers and in each machine that requires this size battery. It doesn't quite last as long as an actual Ryobi battery, but for my lawn chores, it lasted till I was finished. For the price of 2 of them, I can work with one, charge the other, and replace. I think it's a great deal! ... show more
Reviewed in the United States on July 31, 2025 by imstan

  • Great, inexpensive batteries.
Color: 2 Packs
Fast delivery. Great replacement batteries for Ryobi chain saw and string trimmer. Work just as well as the much more expensive Ryobi brand name batteries. Would buy again.
Reviewed in the United States on July 14, 2025 by Jennifer Jenson

  • Other than one going bad I’m satisfied with everything else
Color: 2 Packs
One of them stop working
Reviewed in the United States on September 3, 2025 by Stanley

  • Don’t last 6 hrs
Color: 2 Packs
Don’t last as long as they say. But not all of our Ryobi batteries last as much as they say
Reviewed in the United States on September 10, 2025 by J. EAVES

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