In the never-ending quest to find new and unique ways to help preserve the environment, one group of designers has thrust themselves to the head of the class with the concept of the one-size-fits-most battery cell.
The A to D Battery, as it’s so cleverly called, utilizes Memory Foam technology to allow users to essentially squeeze the battery to any size they may need between AA and D. Once secure in the device, the battery then expands to fill the appropriate space.
A very cool concept, indeed, except for one minute thing: the energy cell is size AA. This means that if you’re trying to obtain enough juice of a full-sized flashlight or any other D-cell-sized gadget, you’re going to be rather disappointed when it runs out within the first five minutes or so. They are also rechargeable, but that might not be saying much when you have a set of batteries that may or may not last through the night.
I think the main point here is the fact that people are making honest efforts to cut down on the consumption and subsequent waste that comes with having to buy multiple sets of disposable batteries over time. Perhaps there will come a time when design is perfected, but until then, we can at least keep our hopes up for a brighter future with ideas like the A to D Battery.






