Makita 18V LXT Lithium-Ion High Capacity Battery Pack 4.0Ah with Fuel Gauge and Charger Starter Kit with bonus 18V LXT Inflator BL1840BDC1-DMP1 - The Home Depot
Makita 18V Energy Kit with double charger and four 5 Ah batteries
Amazon.com: MT20DL Battery Adapter for Makita 18V BL1830 BL1860 BL1815 Li-ion Battery Convert for Dewalt 18V 20V DCB200 Li-ion Battery