Charging Attentions (1); Charging Attentions (2); Basic Operations - Retevis Rb647 Bedienungsanleitung

Charging Attentions (1)

●The Li-ion battery doesn't recharge at the factory, please recharge it in the
environmental temperature between 5-40℃ before using.
● After purchase or long-term storage (more than 2 months), the battery can't
reach its full capacity when charging it for the first time. After repeated
charging/discharging two or three times, the normal charging effect and battery
energy can be achieved.
● Before charging, please turn off the two way radio with the battery. Don't use
the battery during charging, otherwise, it will affect the normal charging of the
battery or cause accidental danger.
● After the battery is fully charged, please take it out of the charging base. Don't
overcharge for a long time to shorten the battery life. The battery energy (power)
is not fully used, please do not recharge it. Otherwise, it will cause damage to the
memory effect.
●When the usage time of the battery does not increase even if it is charged fully
correctly, it means that the life of the battery has expired, please replace or
purchase a new battery.

Charging Attentions (2)

● First insert the small output plug of the "Fire Bull" into the socket behind the
"charger", and then insert the plug of the Fire Bull into the 110~220V mains
power supply, and the green indicator of the charger will be on.
● Insert the battery or the walkie-talkie with the battery on the charging stand,
and confirm that the battery or the walkie-talkie is in normal contact with the
charging terminal. When charging, the red light is on, and the charging starts.
The green light turns on when fully charged.

Basic Operations

Power/Volume Knob
● Clockwise rotate the knob and a click is heard, the two way radio is turned on.
Anticlockwise rotate the knob and a click is heard, the two way radio is turned off.
● Press Custom to enter monitor mode and hear the noise, while rotating the
volume knob to adjust the volume.
Channel Selection
In power-on state, shortly press the UP key or DOWN key to circularly choose
the channel.
The receive indicator lights up and the speaker makes a sound when receiving
the proper signal.
PTT Transmitting Key
Keep the microphone away 3-8cm from your mouth when pressing the PTT key.
Speaking towards the microphone in a normal tone, the receiver can get the best
voice quality.
Standby Indicator
After two way radio enters battery save mode, standby indicator on the Logo
flashes once every 20s.
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