Currently there is no way to know when charge is completed. Is it possible to add a feature for example turn off the front red light when charge is full.
@nabils6437, the LEDs in the camera should turn off once it is fully charged. How are you charging your HERO7 Silver camera? Please see Recommended Chargers for more information.
I am charging with 1A charger. Not sure why it does not turn off after full charge
Have you tried resetting the camera to its factory settings?
If it's still the same, please try re-flashing the software.
Follow the steps on "Update your camera manually" on https://gopro.com/en/us/update/hero7-silver
Let us know how it goes,