Sony DR-BT101 Operating Instructions Manual page 9

Caution
If this unit detects a problem while
charging, the 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 USB cable. Do not
use any other USB cable.
 If the computer enters into hibernation
mode while connected to the unit,
charging will not be completed properly.
Check the setting of the computer before
charging. The indicator (red) will go off
automatically even if the computer enters
into hibernation mode. Charge the unit
again in this case.
 Use the supplied USB cable only, and
connect directly to a computer. Charging
will not be completed properly by an
indirect connection, such as via a USB hub.
Usage hours*
Status
Communication time
(including music
playback time) (up to)
Standby time (up to)
* Time stated above may vary, depending on
ambient temperature or conditions of use.
Checking the remaining
battery
When pressing the POWER button
while the unit is turned on, the
indicator (red) flashes. You can check
the remaining battery by the number
of times the indicator (red) flashes.
Indicator (red)
3 times
2 times
1 time
Note
You cannot check the remaining battery
immediately after the unit is turned on, or
while pairing.
When the battery is almost empty
The indicator (red) flashes slowly
automatically.
When the battery becomes empty, a
beep sounds and the unit will turn off
automatically.
Approx.
usage hours
13 hours
200 hours
Status
Full
Mid
Low (needs to charge)

US