The battery does not charge finish when set inside the camera
IMPORTANT: This article applies only to specific products and/or operating systems. Check the Applicable Products and Categories section of this article before starting these steps.
If you use an AC adapter a low charging supply capacity (output current), then the battery will take extended time to fully charge inside the camera.
For the best fast charging performance, use a commercially available charging device that supports USB Power Delivery and output of 9V/3A or 9V/2A (voltage/current).