About Charging - Sony WF-1000X Help Manual

About charging

The required times for full charging is as follows;
The right/ left unit: about 1.5 hours
The charging case: about 3 hours
Charging the headset when you are outside
A rechargeable battery is built in the charging case. If you charge the charging case in advance, you can charge the
headset with it when you are outside where there is no power supply.
If the charging case is charged fully, you can charge the headset about 2 times.
Notes on charging the headset when you are outside
If the indicator (red) flashes and then turns off quickly when you set the headset on the charging case, you cannot
charge the headset because the remaining power of the rechargeable battery (which is built in the charging case) is
low. To turn on the headset, remove it from the charging case and then press and hold the buttons both on the
right and left unit for about 2 seconds until the indicator (blue) flashes.
If the indicator (red) does not light up/flash and the headset does not turn off even when you set the headset on the
charging case, the remaining power of the rechargeable battery (which is built in the charging case) is empty. To turn
off the headset, remove it from the charging case and then press and hold the button on the left unit for about 2
seconds until the indicator (blue) flashes. The
Hint
If charging starts while the headset is turned on, the headset will turn off automatically.
Note
If the headset is not used for a long time, the battery may be quickly depleted, however, after a few recharges, the battery life will
improve.
If you store the headset for a long time, charge the battery to its full capacity once every 6 months to avoid over discharge.
If the headset is not used for a long time, it may take longer to charge the battery.
If the computer enters into hibernation mode while connected to the headset, charging will not be completed properly. Check the
setting of the computer before charging. The indicator (red) will go off automatically if the computer enters into hibernation mode.
Charge the headset again in this case.
If the headset detects a problem while charging due to following causes, the indicator (red) may turn off, although charging is not
complete. In this case, charge again within the charging temperature range. If the problem persists, consult your nearest Sony
dealer.
Ambient temperature exceeds the charging temperature range of 5 °C – 35 °C(41 °F - 95 °F).
There is a problem with the battery.
If the headset is not used for a long time, the indicator (red) may not light up when you connect the micro-USB cable to charge
the headset. In this case, do not disconnect the micro-USB cable from the headset: wait a few minutes until the indicator (red)
lights up.
If the life of the built-in rechargeable battery drops significantly, 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 the headset in a
car parked in the sun.
Use the supplied micro-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.
left unit and
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right unit turn off.