... delicate;2, adapted to MP3, MP4, mobile phone;3 in the United States, single silicon solar battery import, the light energy conversion rate is ... be automatic protection, prevent to overshoot, discharge; Automatic photographic, supplement the battery energy;5, to cell phone charging 60 minutes, can ... get about 60-150 minutes of talk time, to MP3 or MP4 charge 30 minutes, can get about 2-4 ...