Hooyman 1099105 Installation guide

I've reviewed the Hooyman Hot Zone Food Plot Fence instructions. This document provides guidance on setting up a dual perimeter electric fence system, including connecting the energizer, solar panel and ground rod. The system is designed to deter animals from your food plots and gardens. I'm ready to answer your questions.
What type of battery is recommended for the energizer?

How does the solar panel work?

How do I turn the fence OFF?

What should I do if the ground is dry?