So when it powers off, it goes into a sleep mode. That sleep mode doesn't require alot of power, but if you have it set to turn on if the camera detects vibrations, it uses the cars battery. Mine is plugged in all the time and it only powers on when I turn the car on or it feels vibrations. With the vibration setting, it will turn on when I open my car door. But if your power source isn't powered when the car shuts off, then it doesn't use any power, just what the camera has stored up. Hope that helps 

Yes …. You can use anywhere it goes with you… I use mine in our camper 

The European Standard Type 2 charger is suitable for most electric vehicles in Europe and other countries because it meets the European Standard Type 2 standard. You need to determine if your vehicle is equipped with a Type 2 charging interface in order to use this charger. 

Thank you for your information, our solar panel can charge a flash fish 300w solar generator, we have a charging port for you, thank you. 

Simply connect any 5V 2.1A Max output power source via the Micro-USB cable to safely charge the battery in the included charger. The connected power source can be a mobile phone adapter, a car charger, or a power bank, etc. But please do not directly connect the charger with power supply higher than 5V 2.5A.