Various power sources, how they work and how they create electricity
Chemical sources
How does a battery work AND why aren’t all batteries rechargeable???
Wireless inductive charging
Tesla battery
A bit of deeper chemistry for the curious
Light / solar sources
How does a solar cell work
Thermoelectric sources
How a thermoelectric source works – Peltier element
Mobile phone charged… …by a candle
https://www.youtube.com/watch?v=PAMzAGge8bM