If you are using the ACA-DC4 Adaptor shown in the attached picture, the camera and adaptor are functioning properly:
Page 11 (of the manual) states:
This camera cannot charge the battery even though the AC adaptor (ACA-DC4; optional) is connected to it.
Page 14 (of the manual) states:
The remaining battery power appears on the screen. It does not appear when you use the camera along
with the AC adaptor ACA-DC4
Page 23 (of the manual) states:
Power save mode is not activated when using the AC adaptor ACA-DC4. Economy mode will not work when using the AC adaptor ACADC4.
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