Maintenance & Troubleshooting 9 - 7
Single Slot Charging Cradle
Five Slot Universal Charge Only Cradle
Table 9-2
Troubleshooting the Single Slot Charging Cradle 
Symptom Possible Cause Action
MC40 battery is not 
charging.
MC40 was removed 
from cradle or cradle 
was unplugged from 
AC power too soon.
Ensure cradle is receiving power. Ensure MC40 is seated 
correctly. Confirm the battery is charging. The 2680 mAh 
battery charges in approximately four hours.
Battery is faulty. Verify that other batteries charge properly. If so, replace the 
faulty battery.
The MC40 is not fully 
seated in the cradle.
Remove and re-insert the MC40 into the cradle, ensuring it is 
firmly seated.
Extreme battery 
temperature.
Battery does not charge if ambient temperature is below 0 °C 
(32 °F) or above 40 °C (104 °F).
Table 9-3
Troubleshooting the Five Slot Universal Charge Only Cradle 
Symptom Cause Solution
MC40 battery is not 
charging.
MC40 removed from 
the cradle too soon.
Replace the MC40 in the cradle. The 2680 mAh battery 
charges in 
approximately
 four hours. Tap   > Settings > 
About device > Status to view battery status.
Battery is faulty. Verify that other batteries charge properly. If so, replace the 
faulty battery.
MC40 is not inserted 
correctly in the 
cradle.
Remove the MC40 and reinsert it correctly. Verify charging is 
active. Tap   > Settings > About device > Status to view 
battery status.
Ambient temperature 
of the cradle is too 
warm.
Move the cradle to an area where the ambient temperature is 
between 0 °C (32 °F) and 35 °C (95 °F).
Spare batteries are not 
charging in Four Slot 
Battery Charger.
Missing Four Slot 
Battery Charger 
power supply.
The Four Slot Battery Charger requires a separate power 
supply. Obtain the correct power supply and connect to the 
charger.