For added convenience, the SL30 is powered by easily available, AA alkaline batteries, assuring end-users that they can find a replaceable power source no matter where they may be.

ENGADGET: Samsung expands SL camera lineup: SL820, SL620, SL202 and SL30

When a disaster like Hurricane Sandy knocks out the lights, it's essential to have a source of off-grid power for communication devices like cell phones and radios -- to this end we showcased several portable charging technologies that generate renewable energy.

ENGADGET: Inhabitat's Week in Green: self-sustaining homes, wooden wind turbines and the world's first solar-powered nation