At first glance, the A to D battery concept looks like a winning idea. Designed by Pyeong Joo Goh, Jong Seung Choi and Ji Soo Hong, the nickel hydroxide rechargeable storage cell is made from memory foam and you can just squish it down to the size you want instead of buying a bunch of different batteries to fit each of your different gadgets.

I'm not sure, however, whether the A to D would work, or whether it's one of those ideas that are brilliant in theory but utter pants in practice. Kind of like putting this guy in this suit. Eek!

Yanko Design