We've all experienced the situation of having a dead battery, in a critical moment.
This kind of moment when you need to give an important call, but you're stuck in the train,
and you don't have your cord with you.
Juice up, is a prospective approach around power sharing.
The concept is based on a cable which can transfer battery life from one phone to another.
Juice up is still at a concept stage, and needs some electrical engineering, to be viable.