Cochlear Baha Cordelle II Manuel D'utilisation page 9

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Battery life
To maximise battery life, switch off the sound processor when not in use.
Battery life varies depending on volume setting, the sound environment and
the program setting. Battery life will decrease significantly when using the Baha
sound processor with a connected FM receiver if the FM receiver uses the
sound processor as its power source. Using powerful batteries is particularly
important when high current consumption is common. Battery function can
be related to a number of problems including: no sound, intermittent sound
and crackling/buzzing. Thus, when encountering problems one of the first things
one can do is to try recharging or changing the battery.
Rechargeable batteries
A fully charged battery will normally last for 1-2 days but this can vary
considerably depending on settings and the sound environment. Do not forget
to switch off the body worn unit when you are not using it to save the battery.
Due to self-discharge, battery capacity always decreases over time. A fully
charged battery will have about 80% of its capacity left after one month
(60% after 6 months). After long storage, several charge/discharge cycles
may be necessary to restore full capacity.
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Batteries have to be charged for 2-4 hours before use. A suitable battery
charger can be purchased from Cochlear or a local electronics store.
We recommend "intelligent" fast chargers for NiMH batteries.
Non-rechargeable batteries
Non-rechargeable batteries usually have a higher capacity and last longer.
Batteries from different manufacturers tend to vary in size. If possible test the
battery to make sure it fits and will function properly prior to purchase.
Warning! Non-rechargeable batteries cannot be recharged!
Note: Always follow local regulations for battery disposal.
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