Optimal Compatibility: Designed specifically for , this PCB protection circuit board is for BBL1850 BL1830 models, ensuring a and seamless functionality Enhanced Safety Features: Equipped with advanced safety protocols, this circuit board prevents overcharging, overheating, and short-circuiting, thereby extending the life of your power tools and batteries and Reliable: Crafted from high-quality materials, the circuit board is built to withstand rigorous use in professional environments, ensuring long-lasting performance and reliability Easy Installation: This user-friendly circuit board can be easily installed in your power tool, allowing for a quick and hassle-free setup Due to different batches, there may be differences in product printed text, which not affect use Color:As Shown Material:PCB Package Contents: 1 * Protection Circuit 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.