Regenerative Braking in Bicycle is a system that allows a bicycle to convert kinetic energy, generated during braking, into electrical energy and store it in a battery for later use. This technology is commonly applied in electric bicycles (e-bikes) to extend battery life, reduce charging frequency, and improve overall energy efficiency.

When the rider applies the brakes, the hub motor operates in generator mode, producing electricity instead of consuming it. The generated power is fed back to the battery through a charge controller, thus recycling energy that would otherwise be wasted as heat in conventional braking systems.

Parts Used:

1. Electric Hub Motor (BLDC) – acts as both motor and generator
2. Motor Controller with Regenerative Feature – switches motor to generator mode during braking
3. Rechargeable Battery Pack (Li-ion / LiFePO4) – stores recovered energy
4. Brake Lever with Regenerative Switch – activates regeneration when braking
5. Charge Controller / Regenerative Circuit – manages charging process safely
6. Display Unit (Optional) – shows regen status and recovered power
7. Wiring & Connectors – for electrical connections