Topunive, with the quality policy of "creating green high-quality products and pursuing sunny life", we are mainly engaged in the research and development and production of flexible photovoltaic panels, portable solar panels, portable power bank and so on. This APP must be used with Topunives portable energy storage PES300-I. It is mainly used to monitor the data of the PES300-I, including the battery power, charge and discharge power, temperature, and alarm information in real time.