Replacement Cordless Tool Battery, 18V, 4000mAh

The BLACK+DECKER HPB18 4Ah battery is a reliable 18V replacement power solution engineered for professionals and contractors who demand extended runtime and consistent performance from their cordless tool fleet. This lithium-ion battery pack delivers 4Ah (4000mAh) capacity, providing substantially longer operating time compared to earlier HPB18 models, reducing downtime and increasing job site productivity. Engineered for broad compatibility, this replacement battery works seamlessly with numerous BLACK+DECKER 18V cordless tools, including FireStorm drill/drivers, saws, impact drivers, and outdoor power equipment. Compatible models include FS18HV, FS18ID, FSB18, FS18PS, FS18BX, and many additional 18V platforms, making this an excellent universal replacement for mixed-tool operations. The advanced lithium-ion chemistry provides superior performance characteristics over traditional nickel-metal hydride alternatives. This battery technology delivers consistent power output throughout the discharge cycle, maintains charge longer during storage, and offers enhanced durability for demanding industrial applications. The compact design, measuring approximately 5.71 inches in length, ensures ergonomic handling and easy portability across job sites. Built with integrated safety protection circuitry, this battery pack guards against overcharging, over-discharging, and thermal runaway conditions, extending overall lifespan and protecting both the battery investment and connected tools. Ideal for construction contractors, maintenance technicians, facility managers, and industrial users who operate multiple BLACK+DECKER 18V tools, this replacement battery maximizes equipment uptime while delivering reliable, professional-grade performance in demanding work environments.