









🔋 Power up your productivity—don’t let your tools run out before you do!
The FirstPower 4.0Ah LBXR20 Battery is a high-capacity 20V lithium-ion replacement battery designed for Black & Decker tools. Offering 20% longer runtime than typical 4.0Ah batteries, it ensures extended work sessions with lightweight comfort. Its advanced safety features protect against overheating, overcharging, and short circuits, while broad compatibility covers a wide range of 20V Black & Decker tools and chargers. Supported by a 12-month warranty and dedicated customer service, it’s the reliable power upgrade every professional needs.




| Manufacturer | FirstPower Shenzhen Lepower Electronic Co.,Ltd. |
| Part Number | R20xx |
| Item Weight | 1.61 pounds |
| Package Dimensions | 9.72 x 3.58 x 2.64 inches |
| Item model number | R20xx |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Voltage | 20 Volts |
| Item Package Quantity | 1 |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |
| Battery Capacity | 4000 Milliamp Hours |
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