The APP main feature is to monitor the details of the AUTARKING Lithium batteries. It can monitor multiple batteries at the same time. Showing the main data details after series or parallel, showing details of each battery. re-nameable each battery pack and auto-connect.The Phone via Bluetooth connectivity will monitor the following information from the battery.Battery CapacityBattery VoltageBattery Current (Amps)Battery State of Charge (SOC)Battery StatusIndividual Cell VoltageBattery TemperatureBattery CyclesPlease Note:Only one mobile device can connect to the battery at any one time. If you wish to connect a second device to the battery, you must close the program on the first device.This app is only applicable to the Autarking Lithium batteries and will not work with any other brand/type of Bluetooth battery monitoring system, nor will any other branded app work with AUTARKING lithium batteries.