5PCS 18V Power Tool Li-Ion Lithium Battery BMS PCB Charging Protection Board for Makita BL1830 BL1815 BL1860 LXT400 BL1850 Features: 1. Built-in dual ICs detect the voltage of each battery. And remember the number of uses. 2. Stable quality and shock resistance. It is the best partner for Makita torque wrenches, impact drills and angle grinders. 3. Suitable for bl1815 5-cell lithium battery pack, bl1830 10-cell lithium battery pack and bl1860 15-cell lithium battery pack 4. Each battery can be detected and protected. Overheating protection, overvoltage protection, undervoltage protection, overcurrent protection, overload protection. Specifications: Color: blue Material: PC+metal Note: 1.Due to the light and screen difference, the item's color may be slightly different from the pictures. 2.Please allow 1-3cm differences due to manual measurement. Package includes: 5xLithium Battery Charging Protection Board