






🔋 Power up your projects with unstoppable energy!
This Dutyone 4000mAh 20V lithium-ion replacement battery is engineered for Black & Decker cordless tools, offering longer runtime and reliable performance. Featuring advanced safety protections and compatibility with original chargers, it ensures your power tools stay charged and ready through up to 500 recharge cycles. With a 15-month warranty and responsive customer service, it’s the smart, cost-effective upgrade for professionals who demand efficiency and peace of mind.



| ASIN | B082KHDQKG |
| Amperage | 4 Amps |
| Antenna Location | Power Tool |
| Battery Capacity | 3600 Milliampere Hour (mAh) |
| Battery Cell Composition | Lithium Ion |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 342 Grams |
| Best Sellers Rank | #474,707 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4,138 in Cordless Tool Battery Packs |
| Brand | Dutyone |
| Customer Reviews | 4.4 out of 5 stars 633 Reviews |
| Item Weight | 0.38 Kilograms |
| Manufacturer | Dutyone |
| Number of Batteries | 1 Nonstandard Battery batteries required. (included) |
| Recommended Uses For Product | Power Tool |
| Reusability | Rechargeable |
| UPC | 795274664163 |
| Unit Count | 1 Count |
| Voltage | 20 Volts |
| Warranty Description | 1 |
M**I
Fits and works properly
I got this battery to replace my Black & Decker cordless drill battery and it fits perfectly and it works just like it’s supposed to like it’s the original battery. I would definitely recommend this battery for the price if you need a replacement.
J**N
Solid Replacement
This replacement battery is a great value option for my Black and Decker tools. A original replacement battery was about 5x more than this. It fits perfectly and holds a charge well.
J**S
Could have been better
**Update** After writing this, Alan from the seller contacted me and asked if I wanted a full refund. With excellent customer service like this, I rate the transaction as superior.*** This fits and operates well but I am disappointed with relative longevity of the battery in operation. I have a vacuum which seemed to last long at first but after 3 months it fails to complete the same tasks that the original battery did. Considering that this has greater amperage, it is a disappointment.
B**E
Charge it
Charged and have used one time in my weedeater. Started of very powerful but died down fairly quickly. May need to fully charge again before charge starts to take hold. Nice quality made product. Will serve well as back up.
N**N
Good
So far so good, holds a charge and works well
B**L
Works great
Perfect replacement
M**A
Don’t buy
Do not buy!! Only lasts a few minutes then dies. Save your money
N**Z
Great
Love it bought two
Trustpilot
1 month ago
4 days ago