Sony WI-C100 Help Manual page 100

Help Guide
Wireless Stereo Headset
WI-C100
The available operating time is short (the duration of the battery is short).
If you set the following functions, the available operating time of the battery becomes short.
DSEE
Equalizer
Sound quality mode during Bluetooth playback: Priority on sound quality
If you run the above settings at the same time, the available operating time of the battery becomes even shorter.
If the headset is not used for a long time, the rechargeable battery usage hours may be reduced. However, the
battery life will improve after charging and discharging several times. If you store the headset for a long time, charge
the battery once every 6 months to avoid over-discharge.
It is recommended to charge in a place with an ambient temperature between 15 °C and 35 °C (59 °F - 95 °F).
Efficient charging may not be possible beyond this range. If the problem persists, consult your nearest Sony dealer.
If the usage hours of the built-in rechargeable battery decrease significantly, the battery should be replaced. Consult
your nearest Sony dealer.
Related Topic
Available operating time
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