Energizer broke fresh ground when it made the first disposable batteries from recycled cells, but that immediately raised a question: where are the rechargeable versions? As of today, they're here. The company has introduced new Recharge AA and AAA cells that are the first to be made using old batteries. About 4 percent of their material comes from used power packs, including those from hybrid cars -- yes, the leftovers from your Prius could one day power a kid's toy.