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Fig. 12a Fig. 12b
Step 12. Changing the battery in a M13 hearing aid with
a tamperproof battery compartment
The M13 hearing aid has the option to be tted with a
secured battery compartment if needed for safety
reasons. To change the battery you need to unsecure the
battery compartment. Use the enclosed battery door tool
and put it into the notch shown (Fig. 12a). Push the
battery compartment downwards until it is open
(Fig. 12b).
4. Using the hearing aid