Makita 18V LXT Lithium-Ion Battery and Rapid Optimum Charger Starter Pack (5.0Ah) with bonus 18V LXT 6-1/2 in. Circular Saw BL1850BDC2XSS02 - The Home Depot
Makita 18V X2 LXT Lithium-Ion (36V) Brushless Cordless Rear Handle 7-1/4 in. Circular Saw (Tool-Only) XSR01Z - The Home Depot