Sony Xperia L4 Help Manual page 36

Connect the other end of the cable to the USB port on your device.
2
The notification light illuminates when charging begins.
When the device is fully charged, disconnect the cable from your device by pulling it straight outwards.
3
Make sure not to bend the connector.
Battery notification light status
Green: Battery is charging, charge level is greater than 90%
Yellow: Battery is charging, charge level is 15–90%
Red: Battery is charging, charge level is less than 15%
Note
It is important to use the USB cable that came with your device, as other types of USB cables can damage your device.
Hint
If the battery is completely depleted, it may take up to 10 minutes before the notification light illuminates and the charging icon
appears.
Related Topic
Battery and power management
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