BMS Battery Management System

https://www.huasu-tech.com/products/wireless-battery-monitoring-system/

WiFi Battery Monitor System
The wireless dual battery monitor adopts a new wireless communication technology, which reduces the on-site wiring by half and avoids the potential safety hazards of too many cables. This wireless battery monitoring device is a smart battery monitoring system that is easy to install and shorten the construction period on site. The wireless battery monitor 12v has comprehensive functions with complete facilities and strong anti-interference ability.