The indicator light on my battery charger is flashing orange.
- 
    
Are you using rechargeable batteries?
Only connect rechargeable batteries to the charger. Don't connect disposable batteries. Note: Rechargeable batteries have a solid case. Disposable batteries have holes in their case. - 
    
Check the connection.
The battery might not be properly connected. - 
    
Try a different battery.
If this fixes the problem, the original battery may be faulty or at the end of its life. It's probably time to replace the battery. - 
    
Chargers don't work in extreme warm or cold.
Make sure you only use the charger within 32°F-104°F.