Valkee NPT 1100 User Manual page 22

USING THE DEVICE
Recharging
Recharge the battery via the USB cable from a computer's USB port.
You can also recharge the battery with a USB mains charger (not included in the
sales package).
Before charging, make sure that the computer is switched on. Charge the battery
fully before using the device for the first time.
1. Insert the smaller connector of the USB cable into the USB connector of
the device (see Figure 3).
2. Insert the other end of the USB cable into the computer's USB port (see
Figure 3). The device is charging when the orange indicator (C in Figure
1) is flashing. The orange light is lit steadily when the battery is full.
3. You may then disconnect the device from the charger or computer. The
device cannot be switched on while it is connected to a charger or the
computer.
When the battery is nearly empty, the device emits three short beeps and the
orange indicator flashes occasionally during treatment.
When the battery is completely empty, the device makes four long beeping sounds
and the orange indicator light flashes if you try to switch the device on.
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Figure 3.
NOTE!
The device cannot be used while the battery is being recharged. Remove
the earplugs from your ears before connecting the device to a charger or to a
computer with the USB cable.
Fully recharge the battery if the device will be unused for more than two months.
This increases the battery life.
If the battery's capacity to be charged weakens gradually to the extent that the
battery needs to be replaced, contact a Valkee service point or the manufacturer.
Do not try to replace the battery yourself. If you open the device, the warranty
becomes void.
USING THE DEVICE
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