Ideas for Minecraft bedrock and java edition

Idea 1: batteries - you can make a battery using gold,iron,copper,and redstone. You can charge the batteries by placing it next to a lightning rod and when the rod is struck by lightning, batteries near it gets fully charged. Since were getting copper bulbs in 1.21 I think it's time to to add a new portable lighting source which is my next idea. Idea 2: flashlight - you craft it using copper, iron, copper bulb, amethyst, batteries, and any dye for coloring. You can hold it in your offhand and it provides light in a 4 block radius around you. Batteries needs to be changed every 30 minutes (real time).