This is a conceptual battery package I found in the student Craig Stangwar’s portfolio on Coroflot. The pack releases a new battery only when a used one is inserted. When the package is full of used batteries, you just send it back to the manufacturer (hopefully with a stamp already on the package). The manufacturer has the right tools to recycle or re-use the battery in the most efficient way. Interesting idea where the package helps the recycling procedure.