Background Information

On a daily basis, most of us are familiar with the usage of a power bank – to charge our phones 📱 on the go. No matter where we are, this portable device is the source of our digital connections. Typically, a power bank is powered through electricity, by charging it for several hours. Depending on its battery 🔋 storage, a power bank usually charges for three to six hours. For instance, a 10,000 mA/h power bank requires 50 watts/hour, rounding up to SGD1.78 for such energy consumption. Imagine if we charge our power bank once in two days, it will accumulate up to SGD26.70 per month, just to charge one power bank. What if we can convert this daily necessity to one that is sustainable? 🌏 ♻️

 

Description

Our project is to make a ✋ hand crank power bank where one can use anywhere anytime, even in times of emergencies.

Rotating the crank generates kinetic energy. This kinetic energy is converted to electrical potential energy. The electrical potential energy is then converted to chemical potential energy to be stored in the 🔋 battery pack of the power bank. Subsequently, the chemical potential energy is converted to electrical potential energy to allow the power bank to charge our devices.📱

 

Vision

We aim to create a portable, yet sustainable power bank, whereby it may rely largely on kinetic energy created by our movements to charge itself! 🌟