Converter Adapter For Makita 18v Li-ion Battery Bl1830 Bl1850 To For Makita G Series Bl1813g Bl1815g Bl1811g Lithium Battery - Power Tool Accessories - AliExpress
Amazon.com: [Upgraded to 9.0Ah] 18 Volt 9000mAh BL1890B Battery Compatible with Makita 18V Battery Lithium-Ion BL1890 BL1860 BL1830 BL1840 BL1850 BL1850B Cordless Power Tools with LED Indicator(black white) : Tools & Home