This is an inspiration from a typical case.
Our customer let us design a portable charger not only for private using but also be a gift when needed.
During designing a spark came across my mind! Is it possible to make a separable charger for tiny girls and women who fell hard to bring such a heavy stuff with them during daily jobs.
If we can separate the charger into two pieces, one is small and lighter for job times, the other is big and heavier maybe for picnic and holiday times.
We are still working on it! Hope to hear your opinions! THX!