Maker channel Engineezy has showcased an inventive new mobile accessory project, constructing a Sphero electric battery that uses marbles to charge smartphones.

The build explores an unconventional method for generating mobile power, transforming mechanical motion into electrical energy to keep a phone topped up. Instead of functioning like a standard power bank, the device demonstrates how playful physics and clever engineering can power everyday electronics.

While traditional charging accessories prioritize pure efficiency and portability, creative DIY experiments like this highlight alternative ways power can be captured and delivered to modern mobile devices.

For full details and a closer look at how the build works, check the original coverage on TechEBlog.