The Renew solar battery dispenser concept from Donn Koh is an interesting twist on the usual battery charging devices that lay flat and require an external power source.

Instead the batteries in the Renew are charged with solar energy whilst they sit in the dispenser. Then a fully charged one can be popped out of the bottom and once used up added back into the top to be recharged again.

It's a practical and economical idea which I'm surprised hasn't already been made!

Via Goodmorning and Goodnight.