User's Manual
Professional
FM Transceiver
3
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 months)
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
1. 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.
2. The ambient temperature should be between 5
℃
~40
℃
while charging is in process. Charging
outside this range may not fully charge the battery.
3. Please turn off the radio before inserting it into the charger. Otherwise, it will interfere with correct
charging.
4. To avoid interfering the charging, please do not cut off the power or take out the battery during
charging.