Comtel One Digital Bedienungsanleitung Seite 36

2. Operation from AC mains using the intelligent rapid charger
Connect the output plug of the supplied 6V switching power supply to the
DC jack 26 of the rapid charger, make sure the polarity is correct. With the
parent unit being switched off, place it into the rapid charger. The charging
indicator 27 will light up red green alternately while detecting the status of
battery. Adjust the position of parent unit in case the indicator does not light
up. After 5 sec, the charging indicator 27 will start flashing red when the
battery is under charging. Once the battery is fully charged up (normally it
takes around 4 hours), the charging indicator 27 turns steady green. Now
the parent unit can be switched on for operation. Either you can take it out
or keep placing it in the rapid charger will cause no damage to the battery.
In the latter case, when the battery is being consumed and voltage falls to
a certain level, the rapid charger will automatically start charging up the
battery again.
Note:
Before using the parent unit for the first time, charge up Ni-Mh battery with
the rapid charger for at least four hours. Be sure to switch off the unit
before charging.
CAUTION:
BESURE THE BATTERY IN THE PARENT UNIT IS RECHARGEABLE
TYPE BEFORE PLACING IT IN THE RAPID CHARGER, OTHERWISE
EXPLOSION MAY RESULT.
BESURE THE BATTERY IS INSTALLED IN THE PARENT UNIT
BEFORE PLACING IT IN THE RAPID CHARGER, OTHERWISE THE
PARENT UNIT WILL NOT OPERATE NORMALLY.