Phonak eXtra, Руководство пользователя

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12
Preparation
Replacing the battery
Handle the battery cover with care and do not
use excessive force.
If there is any resistance when shutting the cover,
ensure that the battery is inserted correctly.
The cover may not close properly if the battery is
upside down, and the instrument will not work.
When your hearing system is not in use, leave
the battery compartments open to allow any
moisture to evaporate.
We recommend to only use batteries which your
hearing care professional approves and sells.
Low battery warning
An acoustic signal gives you an early warning that
the battery is approaching exhaustion. You usually have
at least 30 minutes to replace the battery. With
very high quality batteries, this reserve may be higher
and the hearing system will repeat the low battery
warning approximately every 30 minutes.