The built-in rechargeable batteries become depleted quickly even after the player and the charging case are fully charged.

If the battery life becomes half as short as normal, consider replacing the batteries.

The battery life depends on the conditions of use, settings, and ambient temperature.

Furthermore, the following operations will deplete the batteries more quickly than continuous use of the player.

  • Turning the player on or off frequently.
  • Changing the player settings frequently.
  • Charging and discharging the batteries repeatedly.

This will gradually decrease the capacity of the batteries. As a result, the batteries may become depleted quickly even after they are fully charged.

The batteries can be charged approximately 500 times on average.

However, the battery lifespan depends on the temperature and usage environment.

When the life of fully charged batteries become half as short as normal, consider replacing the batteries.

To replace the batteries, contact the nearest Sony dealer or Sony Service Center.

Do not replace the batteries yourself. The batteries are built into the player. Battery replacement requires professional knowledge and skills.

The contents of the Help Guide may be subject to change without notice due to updates to the product's specifications.