 Supercapacitors are a promising technology with great potential for use in various applications. They offer high power density, fast charging times, and long shelf lives, making them ideal for powering hybrid electric slash electric vehicles and other power and electronic systems. However, there are still some challenges to be addressed before they can become commercially viable, including technical issues, standardization, and consistency testing. This paper discusses these challenges and provides guidance on how to address them so that supercapacitors can reach their full potential. This article was authored by Shurfei Huang, Shaolin Zhu, Samrat Sarkar, and others.