Regenerative braking is like when you ride your bike down a hill and use the brakes to slow down. But instead of the brakes making sparks and heat, they make electricity!
When you push the brakes on a car or truck that has regenerative braking, the electricity generator in the vehicle starts working. This generator takes the energy normally lost as heat when you brake and instead converts it into electricity. This electricity is then stored in a battery and can be used again later to power the car.
It's kind of like recycling! Instead of throwing away all of that energy when you brake, you can save it and use it again. This is great because it can help the vehicle use less fuel and produce fewer emissions.
So remember, when you see a car or truck slowing down and its brake lights come on, it's not only stopping the vehicle, but also generating electricity!