This App is only for Power Sonic Lithium Bluetooth Series. Easy to use tool for monitoring your lithium battery!  * Event recorder and notification reminder  * The phone requires Bluetooth 4.0 with BLE(bluetooth low energy) functions.  * Android 4.3 or later  * Operating distance: <= 5m  *The APP only can contact with one battery at one time.  * If you want to connect this battery with another mobile phone, pls exit this app program from the first mobile phone.  * The Android system is an open p