Step 9. Turning Off The Hearing Aid; Step 10. Changing The Battery - Phonak Cassia User Manual

Step 9. Turning off the hearing aid

You can turn off your hearing aid by opening the battery
compartment (Fig. 9).
Fig. 9

Step 10. Changing the battery

Before the battery is completely empty, your hearing
aid will indicate to you that the battery soon needs
to be changed with an acoustic signal. Once this happens,
you have about 30 minutes (in some cases longer)
to change the battery. The battery warning signal is
repeated every half hour. We recommend that you
always keep a spare battery on hand.
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