Mobile devices are essential for wheelchair users, helping with communication, navigation, and emergencies. However, keeping these devices charged while on the move can be difficult, particularly during long trips or in areas with limited power access. Power banks solve part of the problem but require manual recharging and add extra weight. One way to address this gap is by integrating a self-recharging power bank into the wheelchair itself, using the energy generated from movement to keep devices powered.

How It Works

The idea involves embedding an energy-harvesting system into wheelchairs to convert kinetic energy from wheel movement into electricity. Here’s how it might function:

• Energy Capture: Small generators or piezoelectric materials on the wheel axles convert rotational motion into electrical power.
• Storage: A compact, high-capacity battery stores the harvested energy for later use.
• Output: USB or wireless charging pads allow users to power phones, tablets, or medical devices directly from their wheelchair.
• Backup Option: A standard charging port could be included for times when movement is insufficient.

The design would prioritize minimal weight and resistance to avoid interfering with wheelchair mobility.

Potential Impact and Adoption

This system could benefit manual wheelchair users, caregivers, and urban commuters who rely on devices daily. Wheelchair manufacturers might adopt it as a premium feature, while healthcare providers could recommend it for improving independence. One way to test demand would be through surveys or a pilot program with a small group of users.

Next Steps

A lightweight add-on prototype for existing wheelchairs could be developed to test feasibility. Key metrics would include energy output during typical use and user feedback on convenience. If successful, the system might later be integrated into new wheelchair designs or offered as an upgrade kit.

Compared to existing solutions like power banks or solar chargers, this approach could offer consistent, hands-free charging without relying on sunlight or extra accessories. The main challenge would be balancing energy efficiency with ease of movement, but early testing could help refine the design.