Homedepot offers DEWALT 20V MAX Cordless 6-1/2 in. Circular Saw, (1) 20V 6.0Ah and (1) 20V 4.0Ah Batteries, and Charger for $149 with free shipping. 

Product Description: 
This DEWALT Max Lithium-Ion Cordless Circular Saw delivers power and speed to make the most demanding cuts with ease. Offers long term durability.