Recently my Smart Tag was behaving weirdly. Normally after passing through toll’s gate, Smart Tag device will beep once. But that day, it beeped more than one time. 2-5 times to be honest.
But don’t worry, it just an indicator that the battery is weak. Eventhough the battery status shows ‘Hi’, more than once beep means your Smart Tag battery need to be replaced. Try change it today!