Battery Empty or Missing

What does E4-8 mean?

The system's battery is either empty or entirely missing. This warning indicates that non-volatile data, such as configuration parameters, retained variables, or real-time clock settings, may be lost during power cycles if the issue is not resolved. This can lead to system re-configuration needs on every restart.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Ensure the correct battery type and specifications are used as per the equipment manual.

2. 4

   After replacement, check for any data loss and restore configuration or time settings if necessary.