Features: Enhances your 18V battery lifespans with advanced technology featuring intelligent current management during charging/discharging cycles, optimized for professional power tool performances. precise engineered replacement PCB board delivers seamless compatibility for BL1830 BL1850 BL1860 18V Battery systems while integrating overheat prevention and shock resistant durability for demanding workflows. Designed for contractors, industrial technicians, and enthusiasts requiring stable power supply across heavy duty drills, and outdoor equipment in workshops or construction sites. Maintains peakly performances during extended operations in high temperature environments like metal fabrication shops or construction projects through efficient thermal regulation channels. Its easy installation design minimizes downtime for assembly lines and maintenance crews, while quality PCB construction withstands vibrations from demolition tools and rough terrain operations. Specifications: Component: PCB Size:Approx. 85x57mm/3.34x2.24inch For BL1830 BL1850 BL1860 18V Battery Features: Supports 18V voltages,Full-featured LED model,multiple safety protections functions such as overcharge, over-discharge, short-circuits protections; Package Includes: 1pc Lithium Batteries Protections Board note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color