The sharing economy is an economic model often defined as a peer-to-peer (P2P) based activity of acquiring, providing or sharing access to goods and services that are facilitated by a community based on-line platform Power Bank plays as both power supply and charger in one set, which can charge or support standby power at any time for the phone and other digital devices The definition of sharing power bank: the supplier provides the device with rental charger, the user use the mobile phone to scan the code and pay for the deposit, they can rent the power bank, after returning the power bank, the deposit will also return to the corresponding account. We provide Power Bank Machine+Power Bank+Cassette Mechanism+free Software, Logo can be customized