Electricity Bridge / Electricity Bridge

People always use portable equipments such as a cell phone Sometimes We experience the situation that a battery of the equipment is almost dead When We don't have an extra battery, we face the situation that we have to use the equipment occasionally but we can't do anything. Is There nothing to do for the situation?
We thought sharing energy to solve this situation and We designed Electricity Bridge, Electricity Bridge can give energy to other people who's battery has gone dead and take energy from other people
Now, Let's share engergy each other with smile