User's Manual
Professional
FM Transceiver
3
BATTERY INFORMATION
Charging Operation
The battery pack is not charged at the factory; please charge it before use.
Charging the battery pack for the rst time after purchase or extended storage (more than 2 moths) 
may not bring the battery pack to its normal operating capacity. After fully charging/ discharging cycle 
for two or three times, the operating capacity will reach its best  performance. The battery pack life 
is over when its operating time decreases even though it is fully and correctly charged. Replace the 
battery pack.
Charger Applied
Please use the specic charger appointed by our company. Other models may cause explosion and 
personal  injury. After installing the  battery pack, if the radio displays low battery with red  ashing 
lamp or voice prompt, please charge the battery.
Notice for Charging Battery
Do not short the  battery terminals or  ▼ throw the battery into fire.  Never attempt to remove the 
casing from the battery pack, we show no responsibility on any results caused by modifying freely 
without permission of our factory.
The ambient temperature should be between 5 ▼
℃
and 40
℃
while charging is in progress. Charging 
outside this range may not fully charge the battery.
Always switch OFF the  transceiver equipped with a battery pack before  charging. Otherwise, it  ▼
will interfere with correct charging.
To  avoid interfering the charging, please do  not cut off the  power or take out the battery  during  ▼
charging.










