The battery does not charge.

Note: Check the Accessories Compatibility Information website for information regarding the batteries for your camera.

Check the following:

• Check if the battery is inserted in the right direction.
  
• If the CHARGE/Charge lamp flashes or does not light, the terminal may be dirty or there may be a problem with the battery. Wipe any dirt or fingerprints from the terminal with a dry cloth, then charge the battery again.
  Note: Do not touch the battery terminal with your hands or any metal objects.
  Examples of fingerprints and dirt on the battery terminals (for NP-BD1):
  
  • A: Fingerprints on the terminal
  • B: Objects adhering to the terminal
  • C: A clean battery terminal
• The battery, AC adapter, USB cable, and battery charger are Sony-provided parts. If you use non-Sony parts, charging may not be carried out properly or may cause malfunction.
• If you charge a battery that has not been charged for a long period of time or from a state of over-discharge, such as immediately after purchase, the CHARGE/Charge lamp may flash. In this case, remove the battery and charge again to resolve the issue.
• In the following situations, you may not be able to charge normally. 
  Try to recharge in the proper environment.
  • The temperature of the camera is high after extended use.
  • The ambient temperature is outside the recommended range of 10°C to 30°C (50°F to 86°F).

Check how to charge with your charging method.

• When connecting to a computer with a USB cable
• When using an AC adaptor
• When using a battery charger

Note: Depending on the model, the charging method or accessories differ. For details on the charging method, refer to your camera manual.