Optimal Performance: your for tools operate at their best with this premium PCB board designed for efficient charging and longlasting use.Advanced Safety Features: Built with robust protection circuits to safeguard against overcharging, overheating, and short circuits, enhancing battery life and performance. Construction: Crafted from highquality materials, this circuit board is engineered to withstand rigorous use in professional environments.Easy Installation: Designed for a with for batteries, making replacement quick and straightforward.Colour:As shownMaterial:PCBBattery Cell:A for 21700The actual product may have slight color difference or difference, which not affect the usePackage Contents:1 * Charging Protection Circuit BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/ 13cm.