Pack of 4 eneloop, AA Mignon, 1900 mAh, with blue eneloop case - long life, pre-charged, energy and money saving. eneloop is a long-lasting, pre-charged battery that saves money and resources. It can be refilled up to 2100 times and is then recyclable. For a more sustainable lifestyle, eneloop preserves resources better than an alkaline battery. Every year, around 40 billion batteries are used worldwide. Replacing a small percentage of them with eneloop batteries helps to protect the environment. eneloop batteries are sold in over 80 countries. Japanese-inspired design and high production standards are appreciated by customers all over the world. Users are very satisfied.