Battery Chargers -3pcs Module Lithium Battery Panel Protection Board For Bl1830 Highlights generic brand 3pcs Module Lithium Battery Panel Protection Board For Bl1830 Description: Type: charging protection board Model: bl1830 bl1840 bl1850 bms circuit board Compatible with: Makita 18V Power Tool Battery bl1830 bl1840 bl1850 Replace Makita Power Tool Battery Part Number bl1830 bl1840 bl1850. Durable, can use for many times, won't be broken until the battery cells are dead. Specification: Material: Plastic, Metal Size: Approx. 13x 5x 1cm/5.12x 1.97x 0.39 inch Voltage: 18V Rated Capacity: 3.0Ah Package Include: 3 pieces lithium battery board board Note: The color may have different as the difference display, pls understand. Please allow 1-3mm error due to hand test.