Optimal Battery Performance: Designed for 18V lithium 18650 batteries, this PCB board provides overcharge, over-discharge, and short-circuit protection to your battery pack performs at its best. Easy to Install: This protection board is user-friendly and has a simple installation process, making it an ideal choice for professionals and DIY enthusiasts. Extended Battery Life: By effectively managing battery cell balancing, this PCB board helps extend battery life, making it a cost-effective battery maintenance solution. Enhanced Safety Features: Equipped with advanced charging protection to prevent overcharging, overheating, and short circuits, it extends battery life and improves performance. and Reliable: Designed for everyday use, this PCB board is ideal for DIY enthusiasts and professional repair technicians. Color:As Shown Material:PCB Package Contents: 1 * Battery Protection Board Only 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 +/- 1-3cm.