While we’re on the subject of saving energy, Sanyo’s N-SC1S Solar Charger can recharge their eneloops in about 2.5 hours and also features a USB port, enabling you a DC 5V and 500mA output. Eneloops internal lithium ion batteries can be utilized on your iPod, cell phone, PSP, or MP3 player, although it will take an agonizing 6 days to reach a full charge. The Solar Charger was developed as a part of Sanyo’s ongoing “Evolution Project” and will be available in Japan in November for ¥20,000 (~$170.)