amateur

Hello scientists, I have a question that's crucial to a project I'm working on: When I produce electricity with a magnet and a copper wire, I would like to conserve the energy I have produced instead of wasting in it on a lamp. Is there any way I can keep the energy I have produced into Batteries or something so I can use it later, if it's possible is there any way I can tell that the battery has been fully charged? like an LED lamp that changes colors. Thanks for reading this and I hope you will provide me some positive feedback. See you guys later.

Hey, I'm new to this forum I'm from Morocco and I have a project in my mind and I wish you would help me to fulfill my dream I'm 16 an I'm passionate about science, my favorite classes are biology and physics/chimics I think I said enough.