Some questions new Camera Argus Eco

[bernd hardy_275553948815595]

Hello, I am the owner of a new Argus Eco 2 Camera and I have a few questions about it:
1) First of all I have fully charged the camera via USB. Then I installed it outside and connected a solar panel from Reolink. After now 3 days of use the battery has dropped to 93 percent. The light on the back of the camera is green. We had quite few sunny days the last days. Is that still normal? Or would the camera always have to be at 100 percent when the solar panel is connected? An SD card is also installed.

2) Can I, if I want to charge the camera via USB, remove the battery from the Argus eco separately and charge it separately or must the whole camera always be removed?

3) Does the camera delete/overwrite old recordings from the SD card automatically when the card is full? Is it possible to manually delete old recordings from the SD card?