Electric vehicles are now using higher voltage battery packs to improve performance and reduce charging time. By switching to an 800 V battery pack, the thickness of wiring and power loss are reduced, leading to better mileage and performance. The capacity of the battery pack is halved to 100 Ah, but this change allows for a simpler cooling system and less heat generation. Researchers are exploring the design considerations for high-voltage battery packs to enhance electric vehicle technology.