It is used for remote monitoring of the lithium battery system. Lithium batteries are mainly used for industrial and commercial energy storage. Users, operators and equipment manufacturers can remotely monitor the lithium battery system through the APP, and grasp the working status of the lithium battery in real time. When the lithium battery fails , find the fault at the first time, and at the same time, analyze and locate the fault of the lithium battery through the data displayed on the APP, and provide data support for after-sales service.