The key-advantage of the eneloop compared to conventional rechargeable batteries is it´s extremely low self-discharge. Once charged eneloop keeps its charge even if you store it for 6 or 12 months. For a rechargeable battery this is a revolutionary advantage. No more worries about the state of charge of your battery. Just charge them and keep them. Even after months in storage you will still have an almost full battery.
Sanyo also released an eight-color AA-size eneloop pack called eneloop tones.
It will go perfectly with the Pentax K-X 100 styles
For packaging, a new stylish case with a slide-cover has been adopted. Just as are the cases of all other “eneloop” battery products, recycled PET is the only material used and the case can be used as a battery storage case.