U.M. Android v5.1.1

7 - 8 ET5X User Guide
Charging Adapter
4-Slot Battery Charger
Table 7-6 Troubleshooting the Charging Adapter
Symptom Possible Cause Solution
ET5X battery is
not charging.
ET5X was removed from
adapter or adapter was
unplugged from AC
power.
Ensure adapter is receiving power. Ensure ET5X is seated
correctly. Confirm ET5X is charging. The battery fully charges in
approximately four hours.
Battery is faulty. Verify that other ET5X batteries charge properly. If so, replace the
faulty battery.
The ET5X is not fully
seated in the adapter.
Remove and re-insert the ET5X into the adapter, ensuring it is
firmly seated.
Ambient temperature of
the adapter is too warm
or too cold.
Move the adapter to an area where the ambient temperature is
between 0°C and 40°C (32°F and 104°F).
Table 7-7 Troubleshooting the 4-Slot Battery Charger
Symptom Possible Cause Solution
Power Pack
Charging LED
does not light
when inserted.
Power Pack is not
correctly seated.
Remove and re-insert the spare battery into the charging slot,
ensuring it is correctly seated.
Power Pack is
not charging.
Power Pack was
removed from charger or
charger was unplugged
from AC power.
Ensure charger is receiving power. Ensure Power Pack is seated
correctly. Confirm Power Pack is charging. The Power Pack fully
charges in approximately four hours.
Power Pack is faulty. Verify that other Power Pack charge properly. If so, replace the
faulty Power Pack.
The Power Pack is not
fully seated in the
charger.
Remove and re-insert the Power Pack into the charger, ensuring it
is firmly seated.
Ambient temperature of
the charger is too warm
or too cold.
Move the charger to an area where the ambient temperature is
between 0°C and 40°C (32°F and 104°F).