I need someone to give me a 2 to 3-hour session(s) on the basic concepts of electricity with special emphasis on charging onto storage batteries for electric motor vehicles and home storage for off-grid purposes. I am hoping to be able to receive the tuition online [The Administrator removed this message for encouraging communication outside Freelancer.com. which breaches our Terms and Conditions.] from someone who can provide clear explanations. It will be ideal if the tutor can supply pictures and diagrams for illustrations as I know practically nothing about the subject but would like to learn from scratch.