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Currently, many outdoor activities, such as hiking and camping, are increasingly popular. However, these expeditions often require access to emergency power for essentials such as cell phones, USB fans, and USB lighting. The power supply from a standard power bank is limited and insufficient to last for several days. To generate power from natural resources like wind, a power bank integrated with a wind turbine generator is necessary. This project aimed to design a portable wind turbine that integrates a power bank for use in remote locations. A flowchart was used to design the prototype, and snowball sampling was employed for the survey. The portable power-generating system consists of a small turbine, a generator, and a battery charger. Field testing was conducted on the prototype. The results showed that the DC generator produced a voltage ranging from 5.25 V to 16.35 V at wind speeds between 3.01 m/s and 6.35 m/s. A 40,000 mAh power bank combined with the wind turbine generator can recharge a smartphone 10 to 13.33 times. This indicates that the 40,000 mAh power bank can fully charge a smartphone within two hours and power a USB fan and USB light for at least eight to ten hours each. The study concludes that campers can harness wind as a natural resource to charge smartphones, USB lights, and USB fans by using a wind turbine generator integrated with a power bank. It is recommended to include additional ports and loads for enhanced functionality.
Picar et al. (Fri,) studied this question.