Phonak iCube II User Manual page 9

iCube II desktop stand is available as an option
Battery notes
When charging iCube II for the first time, leave it
to charge for at least three hours (even if the middle
indicator light changes to green color earlier).
Charging a depleted battery will take approx. 2 hours.
It is safe to leave iCube II connected for longer
periods, even if not in use.
A new battery's full performance is achieved only
after three complete charge and discharge cycles.
The iCube II battery can be charged several hundred
times. If the operating time of your iCube II reduces
substantially, please contact your local Phonak
representative.
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