This thing seems so obvious, yet doesn’t already exist; brilliant.
Simple, Clear, Fun
Pocket and puzzle-piece analogy at entry-point evokes a sense of usage clarity, and poetic naivete.
With Renew, you just drop an empty one in, and press thetab to take a fully charged one out.
Inviting Dispenser Notion
‘Pez’-inspired retrieval system gives notion of ‘fresh battery!’ everytime you dispense one.