We recommend charging it daily for best performance. If your battery drops below a 20% charge, you will hear a chime followed by a voice prompt: "Your battery is low. Please charge soon." An alert will also be sent to caregivers via the caregiver app to let family know that the device’s battery is low. Device battery status is always available on the Mobile Companion Go Device Details screen of the Aloe Care Health mobile application. Please note: the app does not currently tell caregivers if the device is present on the charger but will display current battery life. This feature will be added in the future.