Yes, it's detachable. 

The solar powered chicken coop door system has high reliability, and solar panels typically have a long lifespan and do not require frequent battery replacement. But in terms of maintenance, it is necessary to regularly clean the solar panels to ensure their efficiency. Meanwhile, backup batteries or manual operating systems can be used as alternative solutions to ensure the normal use of the door. 

No, there is no built-in battery in this solar panel. But it supports all the power banks charging, so that you can store power for using. 

Yes, the hunting camera comes with a solar panel with a 3m cable, the solar panel can be adjusted to suit the location and How do you get the electricity? How much capacity does the hunting camera have The product itself has a battery capacity of 7800mAh and is powered by the solar panel. Please fully charge it with the adaptor before use. You do not need to remove it often to charge it in summer and in sunny places 

Yes, but you need to contact us to purchase the bracket and extension cable separately, the extension cable is 2M