Delve into the intricacies of Tesla's Battery Management System (BMS) in this 41-minute Black Hat conference talk. Explore how the P85D upgrade provided unique insights into power request handling for dual motor vehicles. Learn about the architecture, history, and key components of Tesla's BMS, including the Bitbuster, Pyrofuse location, and current shunt. Discover the Tesla Toolbox, data structures, and DBC files used in the reverse engineering process. Examine hardware modifications, the challenges faced, and potential future developments in EV power management. Gain valuable knowledge about firmware analysis and vehicle performance optimization through this comprehensive presentation on Tesla's cutting-edge technology.