In this instructable I show you how to make power bank hidden inside USB cable. Main point of this project, make cable witch can jarg small devices such as: smartwatches, wireless headphones or prank your friends also save data transferring capabilities.
Parts for this project you can find lying in your house, for example: reuse broken USB cable, battery from old Bluetooth headset or tiny RC helicopter, salvage charging board from chip single cell power bank (today you can find them almost everywhere). Lets go Started.”