Beurer HA 85 Pair Mode D'emploi page 23

Changing the battery
To change the battery of the hearing amplifier, hold
the battery firmly with one hand, and with the other
hand push the upper part of the hearing amplifier
in the opposite direction. Now take the fully
charged spare battery and slide it onto the hearing
amplifier. The hearing amplifier is now ready to use
again.
Charging the hearing amplifiers with the
storage box with charging function
1. Connect a micro-USB cable (included) to the
Base and to an electrical power source.
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