Some deliveries may take a little longer than usual due to regional shipping conditions.
DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
🔋 Power up your toolkit with unstoppable energy!
The Biswaye 4.0Ah 20V Lithium Battery (2-pack) is a high-capacity, rechargeable replacement compatible with Black & Decker 20V Max cordless tools. Featuring built-in overcharge protection and a robust 4.0Ah capacity, these batteries ensure extended runtime and safe operation. Perfect for professionals and DIYers alike, they come with a 30-day money-back guarantee and 1-year warranty, delivering reliable power and peace of mind.
| ASIN | B071KW8D4X |
| Batteries | 2 Lithium Ion batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Capacity | 4 Amp Hours |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | #104,602 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,009 in Cordless Tool Battery Packs |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,165) |
| Date First Available | March 22, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 2 |
| Item Weight | 8 ounces |
| Item model number | LBXR20 |
| Manufacturer | CXAB |
| Material | ABS |
| Number Of Pieces | 2 |
| Part Number | BDK-LBXR20-2 |
| Pattern | 2Pack 20V 2.5Ah compatible with Black&Decker |
| Power Source | Recharge Battery-Powered |
| Product Dimensions | 5.12 x 3.74 x 2.75 inches |
| Shape | Square |
| Size | 4.0Ah |
| Style | LBXR20 20V Max Battery (2Pack) |
| Voltage | 20 Volts |
| Wattage | 50 watts |
J**D
So far great quality
Bought these after my 5 or 6 year old factory Black and Decker batteries for my weed whip wouldn't hold a charge anymore. I've used these new ones a handful of times and they allow me to walk all over my few acre yard taking care of edges and borders again. I don't continuously use them, rather walk from tree to tree or cleaning up around various flower beds and buildings. They charge perfectly fine with the original black and decker charger that came with my weed whip. Glad to be able to take care of everything in my yard again. Good buy for the price from what i'm seeing at this time.
A**R
Great price
Love the new batteries. They do take quite a while to charge. Like that I got two for a great price.
G**R
Decent replacement
Why did you pick this product vs others?: After about six or seven years of use, the original batteries for my Black & Decker weed whacker finally got to the point that they wouldn't hold a charge for very long. I purchased these and am happy to report they fit both the tool and the charger, however, one of the batteries isn't holding a good charge. It lasts about as long as one of the better original batteries after fully charged. I haven't tried the other one yet, but I noticed even the two original batteries held charges differently, so I'm happy enough.
A**S
Perform as expected
So far these have performed as expected. They have replaced a pair of eom 1.5ah for my hedge trimmer and blower with very positive results. No longer a need to change battery in middle of a chore.
N**H
Fair value
These are priced well, and fit my Black and Decker weed eater, but seriously, they don't hold enough power for most jobs. Next time I'll go with larger capacity battery packs
C**S
Does not charge!
I thought the battery was not as all the hype. I been having them about a year , they don't even take a charge. I even purchased a biswaye charger. Both the B&D battery flash red and the Biswaye battery flash red on the charger.
J**S
Better than original
Seem to work fine, and last longer than my old ones did when they were new.
R**N
Biswaye 4.0Ah 20V Lithium Battery
Hope they're better than the last ones I ordered. Those died after about 4-5 recharges. Since a rating is mandatory I'll take the middle road.
Trustpilot
2 months ago
2 months ago