Anritsu Network Master MT9090A Series, Operation Manual, Page: 55 / 200

MT9090A/MU909011A Network Master User’s Guide 2-15
Battery Status LED
The Battery Status LED displays the current status of the
Ni-MH battery pack:
•
Red – The battery pack has stopped charging.

The following can cause the battery pack to stop
charging:
-
When starting to charge, the temperature of the
battery pack is lower than 5°C or higher than
45°C.
In this situation, disconnect the AC adapter
jack from the unit and wait until the
temperature of the battery pack is within the
5°C to 45°C range.
-
While charging, the temperature of the battery
pack becomes lower than 5°C or higher than
60°C.
In this situation, charging will automatically
resume once the temperature of the battery
pack is within the 5°C to 45°C range.
-
Charging has not finished, as it takes about 3
hours to fully charge the battery pack. To avoid
overcharging, the unit stops charging after
about 3 hours.
In this situation, disconnect AC adapter jack
and then reconnect the jack to the unit.
If the Battery Status LED remains red, there is a
problem with the battery pack. Please contact the
Anritsu Technical Support Center or your local