In an era where energy efficiency and sustainability are paramount, having an effective battery management system (BMS) is essential for electric vehicles (EVs) and battery-powered air taxis. While a wired BMS is effective, it has the limitation of maintaining complex wiring harnesses and which reduces flexibility. Wireless BMS technology addresses this by using wireless links instead of physical wiring. However, wireless BMS faces challenges against unwanted interferences in a complex physical environment inside a vehicle. This white paper presents a comprehensive solution for a robust wireless communication framework to overcome these challenges. The solution offers innovative design, advanced capabilities in antenna design, RF system modelling, hardware and software development, and environmental analysis.