The LED in my new Servox digital shows that the battery is low and the speech aid stops working, but this battery still works in my old Servox Inton?
Among the features of the new device is a battery saving function. The Servox digital measures the battery voltage continuously. The energy management system protects the battery from being completely discharged. This function gives your battery a longer life. The Servox Inton did not have this feature, therefore could deep-discharge a battery.