I started buying rechargeable batteries a few years ago. They were a green color, making it very easy to distinguish between regular and rechargeable batteries. I went to buy some rechargeable ones today, and they are now brown, just like the regular ones. They are very expensive and I refused to buy them because I'm afraid my family will think they are the regular ones and just throw them away! Why would they change the color of them to confuse people? I'll just start buying the Amazon brand. They're half the price.