Hello, is the solar panel included in the kit?

Between 2 and 3 months if you don't use streaming too much.

It really depends on
- how often you log on to "watch what happens".
- the frequency of movements that trigger the recording
- the (nightly) use of the infrared lighting, etc.
The more frequent and intensive the use, the more the battery will decrease, so it is difficult to answer the question precisely.
I use it very occasionally and recharge it every 4 months or so.

Easily 2 months. But it will depend on the use, the camera only films when it detects an event