Increase Makita 18V Battery Capacity By 50% - YouTube
Rechargeable Battery 18v Lithium Battery For Makita 18v B Series Battery With Battery Indicator Cordless Drill/saw/angle Grinder - Electric Saw - AliExpress
Makita 18V LXT Lithium-Ion High Capacity Battery Pack 3.0Ah with Fuel Gauge (2-Pack) BL1830B-2 - The Home Depot