General description BL1830 Li-Ion Battery PCB Charging Protection Board is designed for use with 18V power tools, including models BL1815, BL1860, and LXT400. This product ensures safe charging and discharging of your batteries, enhancing their longevity and performance. Technical specifications Color: Blue Material: Plastic Package Contents: 8 x Battery Protection Board Measurement allowed error: +/- 1-3 cm