Problem  | Cause  | Solution  | 
|---|---|---|
Spare Battery Charging LED does not light when spare battery is inserted.  | Spare battery is not correctly seated.  | Remove and re-insert the spare battery into the charging slot, ensuring it is correctly seated.  | 
Spare Battery not charging.  | Charger is not receiving power.  | Ensure the power cable is connected securely to both the charger and to AC power.  | 
Spare battery is not correctly seated.  | Remove and re-insert the battery into the battery adapter, ensuring it is correctly seated.  | |
Battery adapter is not seated properly.  | Remove and re-insert the battery adapter into the charger, ensuring it is correctly seated.  | |
Battery was removed from the charger or charger was unplugged from AC power too soon.  | Ensure charger is receiving power. Ensure the spare battery is seated correctly. The battery charges from fully depleted to 90% in approximately 2.5 hours and from fully depleted to 100% in approximately three hours.  | |
Battery is faulty.  | Verify that other batteries charge properly. If so, replace the faulty battery.  | |
Ambient temperature of the cradle is too warm.  | Move the cradle to an area where the ambient temperature is between 5°C (+41°F) and +40°C (+104°F).  |