| 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). | 
