With the increase in portable smart electronic devices, WSN, and continuously running health-care monitoring sensors, energy deficiency has been a big challenge. As a result, more efforts have been focused on developing energy harvesting devices that can replace the conventional batteries to realize a self-powered system by scavenging energy from ambient sources such as human biomechanical energy.

Herein, a universal self-chargeable power module is designed and developed, that can efficiently harvest energy from human motion, ocean water waves, and automobile vibrations. It is a compactly designed device including a power management circuit, a battery charging circuit, built-in rechargeable storage, and a USB-C outlet, providing a direct current power of maximum 34.11 mW.