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2. Check battery power status
Press the left side button to view the state of charge of the backup battery. One of the LED lights will
flash for 3 seconds and will indicate the following status.
Green LED:
Fully
charged
Button
Blue LED:
Medium
charged
Red LED:
Low power
3. Battery charging
Please connect the device including attached backup battery to an USB port in order to charge the
battery. Otherwise you can connect the backup battery separately via USB cable to charge it as shown
on the picture below. If you are in possession of the USB power adapter, you can use this instead.
Note:
a) If the device is not used frequently, it is suggested to charge the battery once within six month to
extend the life time of the battery.
b) The backup battery has automatic protection against overcharging and short circuit. The red LED
light keeps flashing when the battery is charged and the green LED light is on when the battery is fully
charged. (The battery can be charged for 500 times.)
c) If you are going to charge the device by the additional USB power adapter, please turn the power
switch to OFF, otherwise the unit will try to make up a USB data connection.
