Operation Manual
13
6.5
Headphone Adapter
Figure 5: Headphone adapter.
A standard headphone set can be connected to the device
by means of a micro USB jack 3.5mm adapter (shown in
Figure 5).
6.6
Power supply
6.6.1
Built-in Battery
The voice recorder is powered by a built-in 320 mAh Li-ion battery. While recording, power consumption
amounts to 13 mA; in the Volume-Triggered (VOX) Recording mode, power consumption is up to 4 mA.
Minimum power consumption amounts up to 50 μA in the timer mode.
After approximately a year of continuous usage, you might need to replace the battery due to the battery
wear-out. To replace the battery, please contact Speech Technology Center technical support.
6.6.2
Battery Charge
The voice recorder battery is charged from an external power source (AC/DC 220V/5V) or PC USB port.
Maximum battery charge current is 300 mA; full charge may take up to 5 hours.
When charging the recorder from your PC USB port, you need to consider the following: in case the current in
the port is lower than expected or several devices are connected to a port at the same time, you may
experience temporary connection issues.
The red LED (
6
in Figure 1) will light up and remain on continuously until the battery is fully charged.
After the battery is fully charged, the process will be automatically finished and the LED indicator will go
down.
In case the charger is still plugged, after certain battery discharge (or if the battery is not fully charged)
additional charging will start automatically.
In case the external power supply is powered on and off cyclically, an attempt to start additional charge will
be performed.
Charge your device after the purchase or if you have not used your recorder for a long time.
To prevent battery failure due to over-discharging, follow these simple rules:
If you do not use
Gnome-Nano II
for an extended period of time, fully charge the battery at least
once a month.
Recharge the battery after each intensive recording session.
