Features: Ensure the longevity and efficiency of 18V power Tool with our Battery Charging Protective Circuit Board, designed to provide stable and effective power management. Crafted from PCB material, this board features overcharge and over discharge Protective functions, ensuring safety and reliability for your battery packs. Suitable for enthusiasts, electric tool users, and those experienced in battery assembly who need to replace or upgraded their battery circuit boards. Perfect for home repairs, gardening tasks, and any other projects requiring power Tool, offering a dependable solution for maintaining your equipment's performances. Essential component for anyone enhances their tool's battery life and functionality. Specifications: Component:Metal Size:As shown in the figures Note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item. Package includes: 1Pc Circuit Board