EEE-HB, also known as PH4R7R, is a line of industrial-grade IEC62474 certified batteries manufactured by Panasonic. The batteries are specifically designed for demanding applications such as those found in industrial manufacturing and automation. They feature high power density, high power output, and long life. Additionally, they have a rigid structure and advanced safety features, making them suitable for harsh environments. The EEE-HB/PH4R7R line of batteries provides reliable, safe, and consistent performance.