Sony DR-BT21iK - Manual (Page 12)

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DR-BT21iK [GB] 3-280-325-12(1) DR-BT21iK [GB] 3-280-325-12(1)
Caution
If the headset detects a problem while charging, the headset indicator (red) may
turn off, although charging is not complete.
Check for the following causes:
– Ambient temperature exceeds the range of 0 °C – 40 °C (32 °F – 104 °F).
– There is a problem with the battery.
In this case, charge again within the above-mentioned temperature range.
If the problem persists, consult your nearest Sony dealer.
Notes
 If the battery is not used for a long time, battery may be quickly depleted,
however, after a few recharges, battery life will improve.
 If the life of the built-in rechargeable battery drops to half the normal length, the
battery should be replaced. Consult your nearest Sony dealer for replacement of
the rechargeable battery.
 Avoid exposure to temperature extremes, direct sunlight, moisture, sand, dust or
mechanical shock. Never leave in a car parked in the sun.
 Use only the supplied AC power adaptor. Do not use any other AC power
adaptor.
Battery usage hours
*
Status Approx. usage hours
Communication time (including music
playback time) (up to)
11 hours
Standby time (up to) 100 hours
* Time stated above may vary, depending on ambient temperature or conditions
of use.