The ISDT BG-8S is a battery checker and balancer designed for use with LiPo batteries commonly used in RC vehicles and drones. It allows users to quickly and accurately check the voltage, cell balance, and overall health of their batteries, ensuring safe and efficient operation. The BG-8S features a large, easy-to-read display and can also be used to discharge and store batteries for optimal performance. As a crucial tool for any RC enthusiast, protecting the screen of the BG-8S with a high-quality screen protector is essential to ensure its longevity and continued functionality.