Tooled-Up.com - The DCG405FN is a cordless flathead angle grinder which runs on DeWalt 18v XR lithium ion batteries and is equipped with a brushless motor for maximum efficiency. More info here:
Dewalt Dcg405fn Angle Grinder 20v Brushless Motor Cutting Machine 125mm Rechargeable Cordless Portable Polisher Power Tool - Grinder - AliExpress
Cordless Angle Grinders by DEWALT for sale online | MisterWorker™