PWRCore Brushless 20V Cordless 6 1 2 in. Circular saw Kit with 4.0Ah Lithium ion Battery, PWRAsst USB Adapter & Charger Lawn Mower Blade 40 Returnable 180 Day Cordless Corded 40 Returnable 180 Day Cordless Corded Cordless Battery Power Type Lithium Ion Number of Total Batteries Included 0 Number of Tools (Bonus Tool Not Included) 1 Charger Included Charger Not Included Power Tool Features Brushless bronze and stainless steel internal construction for durability Longer Run Time and Battery Life—Industry leading PWRCore 20™ lithium battery technology wraps each cell with cooling material to keep the battery powering on for 25% longer run time and 2X battery life Quick and Clean Cuts—24 tooth ultra thin carbide tipped blade ensures accurate cuts again and again