BYD SEAL Equipped with BYD's born EV platform (e-Platform 3.0) and revolutionary ultra-safe Blade Battery, BYD Seal is the first to use BYD's CTB (cell to body) technology, which allows the battery to be integrated into the body (battery becomes an integrated component of the chassis), substantially improving the vehicle safety, stability, handling, and performance. Supported by the CTB technology, BYD Seal achieves a breakthrough in the structural strength of the battery system through the cellular structure, which can withstand a 50-ton heavy-duty truck rolling test.