Makita LXT601 18-Volt LXT 6-Piece Lithium-Ion Cordless Combo Kit for $517.99 shipped. Here is a screenshot for your reference.  It features LXT lithium-ion battery and includes a BHP452 1/2: hammer driver-drill, BSS611 6-1/2" circular saw, BJR182 reciprocating saw", BML185 4-position flashlight, and more.  Most places have it for about $599.