Amazon.com: 2 Pack 4.0Ah BL1041B BL1040 BL1040B Battery 12V & 10.8V Battery Compatible with Replace for Makita 12V Battery BL1021B BL1016 BL1041B 197339-1 197406-2 BL1015B : Tools & Home Improvement
Makita LXT 10 in. 18V Lithium-Ion Brushless Electric Battery Chainsaw Kit ( 4.0Ah) with bonus 18V LXT Lithium-Ion Battery 4.0Ah XCU06SM1BL1840B - The Home Depot