Dear borisbnh
If we understood correctly, you want to be notified about the battery level.
The first post in this topic describes the ability to configure Own Notifications. At the same time, battery level notifications belong to Customizable Notifications and are available to all users (including those without paid subscription).
In order for you to receive such notifications from the application, you should:
have the tracker send messages about the battery level to our system. Accordanly the technical documentation for your tracker Suntech ST310U, it can send such messages.
The receipt of such notifications must be enabled in the application. More information about all types of notifications, including battery level, can be found in our blog article at https://gps-trace.com/en/blog/notifications-track-your-vehicle-with-ease.
If you mean something else or you have any additional questions, please let us know in more detail, we will try to help you.